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Multiple factors in the origin of the Cretaceous/Tertiary boundary: the role of environmental stress and Deccan Trap volcanism

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Abstract

A review of the scenarios for the Cretaceous/Tertiary (K/T) boundary event is presented and a coherent hypothesis for the origin of the event is formulated. Many scientists now accept that the event was caused by a meteorite impact at Chicxulub in the Yucatan Peninsula, Mexico. Our investigations show that the oceans were already stressed by the end of the Late Cretaceous as a result of the long-term drop in atmospheric CO2, the long-term drop in sea level and the frequent development of oceanic anoxia. Extinction of some marine species was already occurring several million years prior to the K/T boundary. The biota were therefore susceptible to change. The eruption of the Deccan Traps, which began at 66.2 Ma, coincides with the K/T boundary events. It erupted huge quantities of H2SO4, HCl, CO2, dust and soot into the atmosphere and led to a significant drop in sea level and marked changes in ocean temperature. The result was a major reduction in oceanic productivity and the creation of an almost dead ocean. The volcanism lasted almost 0.7 m.y.. Extinction of biological species was graded and appeared to correlate with the main eruptive events. Elements such as Ir were incorporated into the volcanic ash, possibly on soot particles. This horizon accumulated under anoxic conditions in local depressions and became the marker horizon for the K/T boundary. An oxidation front penetrated this horizon leading to the redistribution of elements. The eruption of the Deccan Traps is the largest volcanic event since the Permian-Triassic event at 245 Ma. It followed a period of 36 m.y. in which the earth’s magnetic field failed to reverse. Instabilities in the mantle are thought to be responsible for this eruption and therefore for the K/T event. We therefore believe that the K/T event can be explained in terms of the effects of the Deccan volcanism on an already stressed biosphere. The meteorite impact at Chicxulub took place after the onset of Deccan volcanism. It probably played a regional, rather than a global, role in the K/T extinctions.

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References

  • Ager D (1993) The new catastrophism. The importance of rare events in geological history. Columbia University Press, New York

    Google Scholar 

  • Albritton CC (1989) Catastrophic episodes in earth history. Chapman and Hall, London

    Google Scholar 

  • Alvarez LW (1987) Mass extinctions caused by large bolide impacts. Phys Today 40 (7):24–33

    Google Scholar 

  • Alvarez W, Asaro F (1990) An extraterrestrial impact. Sci Am 263 (4):44–52

    Google Scholar 

  • Alvarez LW, Alvarez W, Asaro F, Michel HV (1980) Extraterrestrial cause for the Cretaceous-Tertiary extinction. Science 208:1095–1108

    Google Scholar 

  • Alvarez W, Alvarez LW, Asaro F Michel HV (1984a) The end of the Cretaceous: sharp boundary or gradual transition? Sci 223:1183–1186

    Google Scholar 

  • Alvarez W, Kauffman EG, Surelyk F, Alvarez LW, Asaro F, Michel HV (1984b) Impact theory of mass extinctions and the invertebrate fossil record. Science 223:1135–1141

    Google Scholar 

  • Alvarez W, Muller RA (1984) Evidence from crater ages for periodic impacts on the Earth. Nature 308:718–720

    Article  Google Scholar 

  • Anon (1993a) Solid-earth science and society. National Academy Press, Washington, DC

  • Anon (1993b) Report on group discussion in modelling in earth sciences with special reference to Deccan Volcanic Province. Earth Systems Science Division, Department of Science and Technology, New Delhi, pp 31–47

  • Archibald JD (1993) Major extinctions of land-dwelling vertebrates at the Cretaceous-Tertiary boundary, eastern Montana. Geology 21:90–93

    Article  Google Scholar 

  • Arthur MA, Dean WE, Pratt LM (1988) Geochemical and climatic effects of increased marine organic carbon burial at the Cenomanian/Turonian boundary. Nature 335:714–717

    Article  Google Scholar 

  • Baksi AK (1994) Geochronological studies on whole-rock basalts, Deccan Traps, India: evaluation of the timing of volcanism relative to the K-T boundary. Earth Planet Sci Lett 121:43–56

    Article  Google Scholar 

  • Barrera E (1994) Global environmental changes preceding the Cretaceous/Tertiary boundary: Early-Late Maastrichtian transition. Geology 22:877–880

    Article  Google Scholar 

  • Barrera E, Keller G (1990) Stable isotope evidence for gradual environmental changes and species survivorship across the Cretaceous/Tertiary boundary. Paleoceanography 5:867–890

    Google Scholar 

  • Barrera E, Keller G (1994) Productivity across the Cretaceous/Tertiary boundary in high latitudes. Bull Geol Soc Am 106:1254–1266

    Article  Google Scholar 

  • Basu AR, Renne JR, Das Gupta DK, Teichmann F, Poreda JR (1993) Early and late alkali igneous pulses and high-3He plume origin for the Deccan flood basalts. Science 261:902–906

    Google Scholar 

  • Berner RA (1994) 3 GEOCARB II: a revised model of atmospheric CO2 over Phanerozoic time. Am J Sci 294:56–91

    Article  Google Scholar 

  • Bhandari N (1991) Collisions with earth over geologic times and their consequences to the terrestrial environment. Curr Sci 61:97–107

    Google Scholar 

  • Bhandari N, Gupta M, Pandey J, Shukla PN (1993a) Deccan volcanism contribution of Ir and other trace elements near the K/T boundary. Chem Geol 103:129–139

    Article  Google Scholar 

  • Bhandari N, Shukla PN, Castagnoli GC (1993b) Geochemistry of some K/T sections in India. Palaeogeogr Palaeoclimatol Palaeoecol 104:199–211

    Article  Google Scholar 

  • Bhandari N, Gupta M, Pandey J, Shukla PN (1994) Chemical profiles in K/T boundary section of Meghalaya, India: cometary, asteroidal or volcanic. Chem Geol 113:45–60

    Article  Google Scholar 

  • Birkelund T, Bromley RG (eds) (1979) Cretaceous-Tertiary boundary events I. The Maastrichtian and Danian of Denmark. University of Copenhagen, Copenhagen

    Google Scholar 

  • Birkelund T, Hakannson E (1982) The terminal Cretaceous extinction in Boreal shelf seas: a multicausal event. Geol Soc Am Spec Pap 190:373–384

    Google Scholar 

  • Blum JD, Chamberlain CP, Hingston MP, Koeberl C, Marin LE, Schuraytz BC, Sharpton VL (1993) Isotopic comparison of K/T boundary impact glass with melt rock from the Chicxulub and Manson impact structures. Nature 364:325–327

    Article  Google Scholar 

  • Bohor BF (1990) Shocked quartz and marl. Impact signatures in Cretaceous/Tertiary boundary clays. Geol Soc Am Spec Publ 247:335–342

    Google Scholar 

  • Bourgeois J, Hansen TA, Wiberg PL, Kauffman EG (1988) A tsunami deposit at the Cretaceous-Tertiary boundary in Texas. Science 241:567–570

    Google Scholar 

  • Brett R (1992) The Cretaceous-Tertiary extinction: a lethal mechanism involving anhydrite target rocks. Geochim Cosmochim Acta 56:3603–3606

    Article  Google Scholar 

  • Brumsack H-J, Thurow J (1986) The geochemical facies of black shales from the Cenomanian/Turonian boundary event (CTBE). Mitt Geol-Paläont Inst Univ Hamburg 60:247–265

    Google Scholar 

  • Caldeira KG, Rampino MR (1990) Deccan volcanism, greenhouse warming, and the Cretaceous/Tertiary boundary. Geol Soc Am Spec Publ 247:117–123

    Google Scholar 

  • Caldeira K, Rampino MR (1993) Aftermath of the end-Cretaceous mass extinction: possible biogeochemical stabilization of the carbon cycle and climate. Paleoceanography 8:515–525

    Google Scholar 

  • Caldeira K, Rampino MR, Volk T, Zachos JC (1990) Biogeochemical modeling at mass extinction boundaries: atmospheric carbon dioxide and ocean alkalinity at the K/T boundary. In: Kauffman EG, Walliser OH (eds) Extinction events in earth history. Lecture notes in earth science, vol 30. Springer, Berlin Heidelberg New York, pp 333–345

    Google Scholar 

  • Campbell IH, Griffiths RW (1990) Implications of mantle plume structure for the evolution of flood basalts. Earth Planet Sci Lett 99:79–93

    Article  Google Scholar 

  • Carlisle DB, Braman DR (1991) Nanometre-size diamonds in the Cretaceous/Tertiary boundary clay of Alberta. Nature 352:708–709

    Article  Google Scholar 

  • Carlo EH de (1991) Paleoceanographic implications of rare earth element variability within a Fe-Mn crust from the central Pacific Ocean. Mar Geol 98:449–467

    Article  Google Scholar 

  • Carter NL, Officer CB, Chesner CA, Rose WI (1986). Dynamic deformation of volcanic ejecta from the Toba caldera: possible relevance to Cretaceous/Tertiary boundary phenomena. Geology 14:380–383

    Article  Google Scholar 

  • Cathless LM, Hallam A (1991) Stress-induced changes in plate density, vail sequences, epeirogeny, and short-lived global sea level fluctuations. Tectonics 10:659–671

    Google Scholar 

  • Chapman CR, Morrison D (1994) Impacts on the earth by asteroids and comets: assessing the hazard. Nature 367:33–40

    Article  Google Scholar 

  • Charig AJ (1989) The Cretaceous-Tertiary boundary and the last of the dinosaurs. Phil Trans R Soc Lond B325:387–400

    Google Scholar 

  • Chen G, Tyburczy JA, Ahrens TJ (1994) Shock-induced devolitilization of calcium sulfate and implications for K-T extinctions. Earth Planet Sci Lett 128:615–628

    Article  Google Scholar 

  • Christensen L, Fregerslev S, Simonsen A, Thiede J (1973) Sedimentology and depositional environment of Lower Danian Fish Clay from Stevns Klint, Denmark. Bull Geol Soc Denmark 22:193–212

    Google Scholar 

  • Clemens WA, Nelms LG (1993) Paleoecological implications of Alaskan terrestrial vertebrate fauna in latest Cretaceous time at high paleolatitudes. Geology 21:503–506

    Article  Google Scholar 

  • Coccioni R, Galeotti S (1994) K-T boundary extinction: geologically instantaneous or gradual event? Evidence from deep-sea benthic foraminifera. Geology 22:779–782

    Article  Google Scholar 

  • Coffin MF, Eldholm O (1993) Large igneous provinces. Sci Am 269 (4):26–33

    Article  Google Scholar 

  • Cohen TH, Sen G (1993) Fractionation and ascent of Deccan Trap magmas: an experimental study at 6 kilobar pressure. In: Subbarao KV (ed) Volcanism. Wiley Eastern Ltd, Bombay, pp 173–186

    Google Scholar 

  • Colodner DC, Boyle EA, Edmond JM, Thomson J (1992) Post-depositional mobility of platinum, iridium and rhenium in marine sediments. Nature 358:402–404

    Article  Google Scholar 

  • Cornfield RM, Sliter WV, Silver IP, Tardano JA, Schmitt RA, Liu Y-G, Wise SW, Mao S, Cartlidge JE, Berger WH (1993) Synthesis of Cretaceous/Tertiary boundary studies at hole 807C. Proc Ocean Drilling Progr Sci Results 130:745–751

    Google Scholar 

  • Courtillot V (1990a) Deccan volcanism at the Cretaceous-Tertiary boundary: past climatic crises as a key to the future? Global Planet Change 3:291–299

    Article  Google Scholar 

  • Courtillot V (1990b) A volcanic eruption. Sci Am 263 (4):53–60

    Article  Google Scholar 

  • Courtillot V (1994) Mass extinctions in the last 300 million years: one impact and seven flood basalts. Isr J Earth Sci 43:255–266

    Google Scholar 

  • Courtillot V, Besse J (1987) Magnetic field reversals, polar wander, and core-mantle coupling. Science 237:1140–1147

    Google Scholar 

  • Courtillot VE, Cisowski S (1987) The Cretaceous-Tertiary boundary events: external or internal causes? EOS Trans Am Geophys Un 68(14):193, 200

    Google Scholar 

  • Courtillot V, Vandamme D, Besse J, Jaeger JJ, Javoy M (1990) Deccan volcanism at the Cretaceous/Tertiary boundary: data and inferences. Geol Soc Am Spec Publ 247:401–409

    Google Scholar 

  • Cox KG (1988a) Gradual volcanic catastrophes? Nature 333:802

    Article  Google Scholar 

  • Cox KG (1988b) Inaugural address. In: Subbarao KV (ed) Deccan flood basalts. Geol Soc Ind Mem 10:xv-xvii

    Google Scholar 

  • Cox KG, Hawkesworth CJ (1984) Relative contribution of crust and mantle to flood basalt magmatism, Mahabaleshwar area, Deccan Traps. Phil Trans R Soc Lond A310:627–641

    Google Scholar 

  • Crocket JH, Officer CB, Wezel FC, Johnson GD (1988) Distribution of noble metals across the Cretaceous/Tertiary boundary at Gubbio, Italy: iridium variation as a constraint on the duration and nature of Cretaceous/Tertiary boundary events. Geology 16:77–80

    Article  Google Scholar 

  • Crowe BM, Finnegan DL, Zöller WH, Boynton WV (1987) Trace element geochemistry of volcanic gases and particles from 1983–1984 eruptive episodes of Kilauea volcano. J Geophys Res 92 (13):708–714

    Google Scholar 

  • Degens ET (1989) Perspectives in biogeochemistry. Springer, Berlin Heidelberg New York

    Google Scholar 

  • Devey CW, Lightfoot PC (1986) Volcanological and tectonic control of stratigraphy and structure in the western Deccan Traps. Bull Volcanol 48:195–207

    Article  Google Scholar 

  • Devey CW, Stephens WE (1991) Tholeiitic dykes in the Seychelles and the original spatial extent of the Deccan. J Geol Soc Lond 148:979–983

    Google Scholar 

  • D’Hondt S, Herbert TD (1992) Comment and reply on “Hiatus distributions and mass extinctions at the Cretaceous/Tertiary boundary”. Geology 20:380–382

    Article  Google Scholar 

  • D’Hondt S, Pilson MEQ, Sigurdsson H, Hanson AK, Carey S (1994) Surface-water acidification and extinction at the Cretaceous-Tertiary boundary. Geology 22:983–986

    Article  Google Scholar 

  • Dia A, Manhès G, Dupré B, Allègre CJ (1989) The Cretaceous-Tertiary boundary problem: an assessment from lead isotope systematics. Chem Geol 75:291–304

    Article  Google Scholar 

  • Dickens GR, Owen RM (1993) Global change and manganese deposition at the Cenomanian-Turonian boundary. Mar Georesource Geotechnol 11:27–43

    Article  Google Scholar 

  • Dingus L (1984) Effects of stratigraphic completeness on interpretations of extinction rates across the Cretaceous-Tertiary boundary. Paleobiology 10:420–438

    Google Scholar 

  • Donovan SK (1987) How sudden is sudden? Nature 328:109

    Article  Google Scholar 

  • Donovan AD, Vail PR (1986) Sequence stratigraphy at the K-T boundary in Alabama: a noncatastrophic alternative. Abstr Progr Geol Soc Am 18:587

    Google Scholar 

  • Ekdale AA, Bromley RG (1984) Sedimentology and ichnology of the Cretaceous-Tertiary boundary in Denmark: implications for the causes of the terminal Cretaceous extinction. J Sedimentol Petrol 54:681–703

    Google Scholar 

  • Elliott WC, Aronson JL, Millard HT, Gierlowski-Kordesch E (1989) The origin of the clay minerals at the Cretaceous/Tertiary boundary in Denmark. Bull Geol Soc Am 101:702–710

    Article  Google Scholar 

  • Emerson S, Bender M (1980) Carbon fluxes at the sediment-water interface of the deep sea: calcium carbonate preservation. J Mar Res 39:139–162

    Google Scholar 

  • Erwin DH (1994) The Permo-Triassic extinction. Nature 367:231–236

    Article  Google Scholar 

  • Evans NJ, Ahrens TJ, Gregoire DC (1995) Fractionation of ruthenium from iridium at the Cretaceous-Tertiary boundary. Earth Planet Sci Lett 134:141–153

    Article  Google Scholar 

  • Féraud G, Courtillot V (1994) Comment on “Did Deccan volcanism pre-date the Cretaceous-Tertiary transition?” Earth Planet Sci Lett 122:259–262

    Article  Google Scholar 

  • Finnegan DL, Miller TL, Zöller WH (1990) Iridium and other trace-metal enrichments from Hawaiian volcanoes. Geol Soc Am Spec Publ 247:111–116

    Google Scholar 

  • Florentin J-M, Maurrasse R, Sen G (1991) Impacts, tsunamis, and the Haitian Cretaceous-Tertiary boundary layer. Science 252:1690–1693

    Google Scholar 

  • Frakes L, Bolton B (1992) Effects of ocean chemistry, sea level, and climate on the formation of primary sedimentary manganese ore deposits. Econ Geol 87:1207–1217

    Article  Google Scholar 

  • Fuller M, Weeks RR (1992) Superplumes and superchrons. Nature 356:16–17

    Article  Google Scholar 

  • Gallagher WB (1991) Selective extinction and survival across the Cretaceous/Tertiary boundary in the northern Atlantic coastal plain. Geology 19:967–970

    Article  Google Scholar 

  • Gallet Y, Weeks R, Vandamme D, Courtillot V (1989) Duration of Deccan trap volcanism: a statistical approach. Earth Planet Sci Lett 93:273–282

    Article  Google Scholar 

  • Ganapathy R (1980) A major meteorite impact on the earth 65 million years ago: evidence from the Cretaceous-Tertiary boundary clay. Science 209:921–923

    Google Scholar 

  • Gilmour I, Anders E (1989) Cretaceous-Tertiary boundary event: evidence for a short time scale. Geochim Cosmochim Acta 53:503–511

    Article  Google Scholar 

  • Glasby GP (1988) Manganese deposition through geological time: dominance of the post-Eocene deep-sea environment. Ore Geol Revs 4:135–144

    Article  Google Scholar 

  • Glen W (ed) (1994) The mass extinction debates: how science works in a crisis. Stanford University Press, Stanford, California

    Google Scholar 

  • Glikson AY (1995) Asteroid/comet mega-impacts may have triggered major episodes of crustal evolution. EOS Trans Am Geophys Un 76(6):49, 54, 55

    Google Scholar 

  • Goldberg ED, Hodge V, Kay P, Stallard M, Koide M (1986) Some comparative marine chemistries of platinum and iridium. Appl Geochem 1:227–232

    Article  Google Scholar 

  • Graciansky PC de, Deroo G, Herbin J, Montadert L, Müller C, Schaaf A, Sigal J (1984) Ocean-wide stagnation episode in the late Cretaceous. Nature 308:346–349

    Article  Google Scholar 

  • Gratz AJ, Nellis WJ, Hinsey NA (1992) Laboratory simulation of explosive volcanic loading and implications for the cause of the K/T boundary. Geophys Res Lett 19:1391–1394

    Google Scholar 

  • Grieve R, Rupert J, Smith J, Therriault A (1995) The record of terrestrial impact cratering. GSA Today 5:189, 194–196

    Google Scholar 

  • Hallam A (1977) Secular changes in marine inundation of USSR and North America through the Phanerozoic. Nature 269:769–772

    Article  Google Scholar 

  • Hallam A (1987) End-Cretaceous mass extinction event: argument for terrestrial causation. Science 238:1237–1242

    Google Scholar 

  • Hallam A (1989) The case for sea-level change as a dominant causal factor in mass extinction of marine invertebrates. Phil Trans R Soc Lond B325:437–455

    Google Scholar 

  • Hallam A (1992) Phanerozoic sea-level changes. Columbia University Press, New York

    Google Scholar 

  • Handler P (1989) The effect of volcanic aerosols on global climate. J Volcanol Geotherm Res 37:233–249

    Article  Google Scholar 

  • Hansen HJ (1990) Diachronous extinctions at the K/T boundary. Geol Soc Am Spec Pap 247:417–423

    Google Scholar 

  • Hansen HJ (1991) Diachronous disappearance of marine and terrestrial biota at the Cretaceous-Tertiary boundary. Contr Paleontol Museum Univ Oslo 364:31–32

    Google Scholar 

  • Hansen HJ, Gwozdz R, Bromley RG, Rasmussen KL, Vogensen EW, Pedersen KR (1986a) Cretaceous-Tertiary boundary sperules from Denmark, New Zealand and Spain. Bull Geol Soc Denmark 35:75–82

    Google Scholar 

  • Hansen HJ, Gwozdz R, Hansen JM, Bromley RG, Rasmussen KL (1986b) The diachronous C/T plankton extinction in the Danish Basin. In: Walliser OH (ed) Global bio-events. Lecture notes in earth sciences, vol 8. Springer, Berlin Heidelberg New York, pp 381–384

    Google Scholar 

  • Hansen HJ, Gwozdz R, Rasmussen KL (1988) High-resolution trace element chemistry across the Cretaceous-Tertiary boundary in Denmark. Revista Español Paleontol no Extraord: 21–29

  • Hansen HJ, Rasmussen KL, Gwozdz R, Hansen JM, Radwanski A (1989) The Cretaceous/Tertiary boundary in Central Poland. Acta Geol Polonica 39:1–12

    Google Scholar 

  • Hansen HJ, Rasmussen KL, Gwozdz R, Kunzendorf H (1987) Iridium-bearing carbon black at the Cretaceous-Tertiary boundary. Bull Geol Soc Denmark 36:305–314

    Google Scholar 

  • Hansen HJ, Rasmussen KL, Liu Q, Walaszczyk BI, Gwozdz R, Stage M (1993) Correlation of marine and terrestrial Upper Cretaceous sediments by their magnetic susceptibility. Bull Geol Soc Denmark 40:175–184

    Google Scholar 

  • Haq BU, Hardenbol J, Vail PR (1987) Chronology of fluctuating sea levels since the Triassic. Science 235:1156–1167

    Google Scholar 

  • Hart MB (ed) (1996) Biotic recovery from mass extinction events. Geol Soc Spec Publ no. 102

  • Hart MB, Leary PN (1990) Periodic bioevents in the evolution of the planktonic foraminifera. In: Kauffman EG, Walliser OH (eds) Extinction events in earth history. Lecture notes in earth science, vol 30. Springer, Berlin Heidelberg New York, pp 325–331

    Google Scholar 

  • Hartnady CJH (1986) Amirante basin, western Indian Ocean: possible impact site of the Cretaceous/Tertiary extinction bolide? Geology 14:423–426

    Article  Google Scholar 

  • Herbert TD, D’Hondt SL (1990) Precessional climate cyclicity in Late Cretaceous-Early Tertiary marine sediments: a high-resolution chronometer of Cretaceous-Tertiary boundary events. Earth Planet Sci Lett 99:263–275

    Article  Google Scholar 

  • Herbert TD, Sarmiento JL (1991) Ocean nutrient distribution and oxygenation: limits on the formation of warm saline bottom water over the past 91 m.y. Geology 19:702–705

    Article  Google Scholar 

  • Hilbrecht H, Arthur MA, Schlanger SO (1986) The Cenomanian-Turonian boundary event: sedimentary, faunal and geochemical criteria developed from stratigraphic studies in NW Germany. In: Walliser OH (ed) Global bio-events. Lecture notes in earth sciences, vol 8. Springer, Berlin Heidelberg New York, pp 345–351

    Google Scholar 

  • Hildebrand AR, Boynton WV (1990) Proximal Cretaceous-Tertiary boundary impact deposits in the Caribbean. Science 248:843–847

    Google Scholar 

  • Hildebrand AR, Pilkington M, Connors M, Ortiz-Aleman C, Chavez RE (1995) Size and structure of the Chicxulub crater revealed by horizontal gradients and cenotes. Nature 376:415–417

    Article  Google Scholar 

  • Hoffman A (1989) Mass extinctions: the view of a sceptic. J Geol Soc Lond 146:21–35

    Google Scholar 

  • Hoffman A, Gruszczynski M, Malowski K (1991) On the interrelationship between temporal trends in the13C,18O, and34S in the World Ocean. J Geol 99:355–370

    Google Scholar 

  • Hollander DJ, McKenzie JA, Hsü KJ (1993) Carbon isotope evidence for unusual plankton blooms and fluctuations of surface water CO2 in “Strangelove Ocean” after terminal Cretaceous event. Palaeogeogr Palaeoclimatol Palaeoecol 104:229–237

    Article  Google Scholar 

  • Holser WT, Magaritz M (1992) Cretaceous/Tertiary and Permian/Triassic boundary events compared. Geochim Cosmochim Acta 56:3297–3309

    Article  Google Scholar 

  • Holser WT, Margeritz M, Wright J (1986) Chemical and isotopic variations in the World Ocean during Phanerozoic time. In: Walliser OH (ed) Global bio-events. Lecture notes in earth sciences, vol 8. Springer, Berlin Heidelberg New York, pp 63–74

    Google Scholar 

  • Hoyle F, Wickramasinghe C (1978) Comets, ice ages and ecological catastrophes. Astrophys Space Sci 53:523–526

    Article  Google Scholar 

  • Hsü KJ (1980) Terrestrial catastrophe caused by cometary impact at the end of the Cretaceous. Nature 285:201–203

    Article  Google Scholar 

  • Hsü KJ (1984) A scenario for the terminal Cretaceous event. Init Reps Deep Sea Drilling Project 73:755–763

    Google Scholar 

  • Hsü KJ (1986) The Great dying cosmic catastrophe, dinosaurs, and the theory of evolution. Harcourt Brace Jovanovich, Orlando, Florida

    Google Scholar 

  • Hsü KJ, McKenzie JA (1985) A “Strangelove” ocean in the earliest Tertiary. In: Sundquist ET, Broecker WS (eds) The carbon cycle and atmospheric CO2: natural variations Archean to Present. Am Geophys Un Geophys Monogr 32, pp 487–492

  • Hsü KJ, McKenzie JA (1990) Carbon-isotope anomalies at era boundaries: global catastrophes and their ultimate cause. Geol Soc Am Spec Publ 247:61–70

    Google Scholar 

  • Hsü KJ, McKenzie JA et al. (1982a) Mass mortality and its evolutionary consequences. Science 216:249–256

    Google Scholar 

  • Hsü KJ, Mckenzie JM, He QX (1982b) Terminal Cretaceous environmental and evolutionary changes. Geol Soc Am Spec Pap 190:317–328

    Google Scholar 

  • Huber BT, Hodell DA, Hamilton CP (1995) Middle-Late Cretaceous climate of the southern high latitudes: stable isotopic evidence for minimal equator-to-pole thermal gradients. Bull Geol Soc Am 107:1164–1191

    Article  Google Scholar 

  • Huffman AR, Crocket JH, Carter NL, Barella PE, Officer C (1990) Chemistry and mineralogy across the Cretaceous/Tertiary boundary at DSDP Site 527, Walvis Ridge, South Atlantic Ocean. Geol Soc Am Spec Publ 247:319–334

    Google Scholar 

  • Hurlbert SH, Archibald JD (1995) No statistical support for sudden (or gradual) extinction of dinosaurs. Geology 23:881–884

    Article  Google Scholar 

  • Hut P, Alvarez W, Elder WP, Hansen T, Kauffman EG, Keller G, Shoemaker EM, Weissman PR (1987) Comet showers as a cause of mass extinctions. Nature 329:118–126

    Article  Google Scholar 

  • Ivany LC, Salawitch RJ (1993). Carbon isotopic evidence for biomass burning at the K-T boundary. Geology 21:487–490

    Article  Google Scholar 

  • Izett GA (1990) The Cretaceous-Tertiary boundary interval, Raton Basin, Colorado and New Mexico, and its content of shock-metamorphosed minerals: evidence relevant to the K/T boundary impact-extinction theory. Geol Soc Am Spec Publ 249:1–102

    Google Scholar 

  • Izett GA (1991) Tektites in Cretaceous-Tertiary boundary rocks on Haiti and their bearing on the Alvarez impact extinction hypothesis. J Geophys Res 96 (20):879–905

    Google Scholar 

  • Jablonski D (1991) Extinctions: a paleontological perspective. Science 253:754–757

    Google Scholar 

  • Jablonski D (1994) Extinctions in the fossil record. Phil Trans R Soc Lond B344:19–26

    Google Scholar 

  • Jacobs JA (1994) Reversals of the earth’s magnetic field, 2nd edn. Cambridge University Press, Cambridge

    Google Scholar 

  • Jaeger H (1986) Die Faunenwende Mesozoikum/Känozoikumnüchtern betrachtet. Z Geol Wiss Berlin 14:629–656

    Google Scholar 

  • Jaiprakash BC, Singh J, Raju DSN (1993) Foraminiferal events across K/T boundary and age of Deccan volcanism in Palakollu area, Krishna-Godavari basin, India. J Geol Soc Ind 41:105–117

    Google Scholar 

  • Javoy M. Courtillot V (1989) Intense acidic volcanism at the Cretaceous-Tertiary boundary. Earth Planet Sci Lett 94:409–416

    Article  Google Scholar 

  • Jéhanno C, Boclet D, Froget L, Lambert B, Robin E, Rocchia R, Turping L (1992) The Cretaceous/Tertiary boundary at Beloc, Haiti: no evidence for an impact in the Carribean area. Earth Planet Sci Lett 109:229–241

    Article  Google Scholar 

  • Jewell PW (1993) Water-column stability, residence times, and anoxia in the Cretaceous North American seaway. Geology 21:579–582

    Article  Google Scholar 

  • Joachimski MM, Buggisch W (1993) Anoxic events in the late Frasnian — causes of the Frasnian-Famennian faunal crisis? Geology 21:675–685

    Article  Google Scholar 

  • Johnson KR (1993) Extinctions at the antipodes. Nature 366:511–512

    Article  Google Scholar 

  • Jones DS, Mueller PA, Bryan JR, Dobson JP, Channell JET, Zachos JC, Arthur MA (1987) Biotic, geochemical, and paleomagnetic changes across the Cretaceous/Tertiary boundary at Braggs, Alabama. Geology 15:311–315

    Article  Google Scholar 

  • Jørgensen NF (1986) Geochemistry, diagenesis and nannofacies of chalk in the North Sea Central Graben. Sediment Geol 48:267–294

    Article  Google Scholar 

  • K-TEC Group (1977) Cretaceous-Tertiary extinctions and possible terrestrial and extraterrestrial causes. Syllogeus 12:1–161

    Google Scholar 

  • Kajiwara Y, Kaiho K (1992) Oceanic anoxia at the Cretaceous/Tertiary boundary supported by the sulfur isotopic record. Palaeogeogr Palaeoclimatol Palaeoecol 99:151–162

    Article  Google Scholar 

  • Kajiwara Y, Yamakita S, Ishida K, Ishiga H, Imai A (1994) Development of a largely anoxic stratified ocean and its temporary massive mixing at the Permian/Triassic boundary supported by the sulfur isotopic record. Palaeogeogr Palaeoclimatol Palaeoecol 111:367–379

    Article  Google Scholar 

  • Kaminski MA, Malmgren BA (1989) Stable isotope and trace element stratigraphy across the Cretaceous/Tertiary boundary in Denmark. Geol Fören Stockh Förh 111:305–312

    Google Scholar 

  • Kamo SL, Krogh TE (1995) Chicxulub crater source for shocked zircon crystals from the Cretaceous-Tertiary boundary layer, Saskatchewan: evidence from new U-Pb data. Geology 23:281–284

    Article  Google Scholar 

  • Kasting JF, Richardson SM, Pollack JB, Toon OB (1986) A hybrid model of the CO2geochemical cycle and its application to large impact events. Am J Sci 286:361–389

    Article  Google Scholar 

  • Kastner M, Asaro F, Michel HV, Alvarez W, Alvarez LW (1984) The precursor of the Cretaceous-Tertiary boundary clays at Stevns Klint, Denmark, and DSDP hole 465A. Science 226:137–143

    Google Scholar 

  • Kate WGHZ ten, Sprenger A (1993) Orbital cyclicities above and below the Cretaceous/Paleogene boundary at Zumaya (N Spain), Agost and Relleu (SE Spain). Sediment Geol 87:69–101

    Article  Google Scholar 

  • Kauffman EG (1986) High-resolution event stratigraphy: regional and global Cretaceous bio-events. In: Walliser OH (ed) Global bio-events. Lecture notes in earth sciences, vol 8. Springer, Berlin Heidelberg New York, pp 279–335

    Google Scholar 

  • Kauffman EG, Erwin DH (1995) Surviving mass extinctions. Geotimes 40 (3):14–17

    Google Scholar 

  • Keith ML (1982) Violent volcanism, stagnant oceans and some inferences regarding petroleum, strata-bound ores and mass extinctions. Geochim Cosmochim Acta 46:2621–2637

    Article  Google Scholar 

  • Keller G (1989) Extended period of extinctions across the Cretaceous/Tertiary boundary in planktonic foraminifera of continental shelf sections: implications for impact and volcanism theories. Bull Geol Soc Am 101:1408–1419

    Article  Google Scholar 

  • Keller G (1993) The Cretaceous-Tertiary boundary transition in the Antarctic Ocean and its global implications. Mar Micropaleontol 21:1–45

    Article  Google Scholar 

  • Keller G (1994) K-T boundary zones. Science 264:641

    Google Scholar 

  • Keller G, Barrera E, Schmitz B, Mattson E (1993b) Gradual mass extinction, species survivorship, and long-term environmental changes across the Cretaceous-Tertiary boundary in high latitudes. Bull Geol Soc Am 105:979–997

    Article  Google Scholar 

  • Keller G, MacLeod N (1996) Cretaceous/Tertiary mass extinctions: biotic and environmental changes. W. W. Norton Co., New York

    Google Scholar 

  • Keller G, MacLeod N, Lyons JB, Officer CB (1993a) Is there evidence for Cretaceous/Tertiary boundary-age deep-water deposits in the Caribbean and Gulf of Mexico? Geology 21:776–780

    Article  Google Scholar 

  • Kerr RA (1991) Did a volcano help kill off the dinosaurs. Science 252:1496–1497

    Google Scholar 

  • Kerr RA (1994) Testing an ancient impact’s punch. Science 263:1371–1372

    Google Scholar 

  • Kerr RA (1995) Scientists contemplate a fatal belch and a living ocean. Science 270:1441–1442

    Google Scholar 

  • Klootwijk CT, Gee JS, Pierce JW, Smith GM (1991) Constraints on the India-Asia convergence: paleomagnetic results from Ninetyeast Ridge. Proc Ocean Drilling Project Sci Results 121:777–882

    Google Scholar 

  • Koeberl C (1993) Chicxulub crater, Yucatan: tektites, impact glasses, and the geochemistry of target rocks and breccias. Geology 21:211–214

    Article  Google Scholar 

  • Koeberl C, Sigurdsson H (1992) Geochemistry of impact glasses from the K/T boundary in Haiti: relation to smectites and new type of glass. Geochim Cosmochim Acta 56:2113–2129

    Article  Google Scholar 

  • Koeberl C, Sharpton VL, Schuraytz BC, Shirley SB, Blum JD, Mervin LE (1994) Evidence for a meteoritic component in impact melt rock from the Chicxulub structure. Geochim Cosmochim Acta 58:1679–1684

    Article  Google Scholar 

  • Krauskopf K (1967) Introduction to geochemistry. McGraw-Hill, New York

    Google Scholar 

  • Kring DA, Hildebrand AR, Boynton WV (1994) Provenance of mineral phases in the Cretaceous/Tertiary boundary sediments exposed on the southern peninsula of Haiti. Earth Planet Sci Lett 128:629–641

    Article  Google Scholar 

  • Krogh TE, Kamo SL, Bohor BF (1993a) Fingerprinting the K/T impact site and determining the time of input by U-Pb dating of single shocked zircons from distal ejecta. Earth Planet Sci Lett 119:425–429

    Article  Google Scholar 

  • Krogh TE, Kamo SL, Sharpton VL, Marin LE, Hildebrand AR (1993b) U-Pb ages of single shocked zircons linking distal K/T ejecta to the Chicxulub crater. Nature 366:731–734

    Article  Google Scholar 

  • Kruge MA, Stankiewicz BA, Crelling JC, Montanari A, Bensley DF (1994) Fossil charcoal in Cretaceous-Tertiary boundary strata: evidence for catastrophic firestorm and megawave. Geochim Cosmochim Acta 58:1393–1397

    Article  Google Scholar 

  • Kump LR (1991) Interpreting carbon-isotope excursions: strangelove oceans. Geology 19:299–302

    Article  Google Scholar 

  • Kunzendorf H, Glasby GP (in preparation) The Cretaceous-Tertiary boundary: Manganese and rare earth element distributions across the K/T boundary in chalks from the North Sea and the Danish Subbasin

  • Kunzendorf H, Gwozdz R, Hansen HJ, Svendsen N (1986) Trace elements in a North Sea drill core. Appl Geochem 1:383–394

    Article  Google Scholar 

  • Kunzendorf H, Gwozdz R, Hansen HJ (1990) Uranium at the Cretaceous-Tertiary boundary in Denmark. Terra Nova 2:79–86

    Google Scholar 

  • Kyte FT (1988) The extraterrestrial component in marine sediments: description and interpretation. Paleoceanography 3:235–247

    Google Scholar 

  • Kyte FT, Bohor BF (1995) Nickel-rich magnesiowüstite in Cretacious-Tertiary boundary spherules crystallized from ultramafic, refractory silicate liquids. Geochim Cosmochim Acta 59:4967–4974

    Article  Google Scholar 

  • Kyte FT, Bostwick JA (1995) Magnesioferrite spinel in Cretaceous/Tertiary boundary sediments of the Pacific basin: remnants of hot, early ejecta from the Chicxulub impact? Earth Planet Sci Lett 132:113–127

    Article  Google Scholar 

  • Kyte FT, Smit J (1986) Regional variations in spinel compositions: an important key to the Cretaceous/Tertiary boundary. Geology 14:485–487

    Article  Google Scholar 

  • Kyte FT, Wasson JT (1986) Accretion rate of extraterrestrial matter: iridium deposited 33 to 67 million years ago. Science 232:1225–1229

    Google Scholar 

  • Kyte FT, Zhou Z, Wasson JT (1980) Siderophile-enriched sediments from the Cretaceous-Tertiary boundary. Nature 288:651–656

    Article  Google Scholar 

  • Kyte FT, Smit J, Wasson JT (1985) Siderophile interelement variations in the Cretaceous/Tertiary boundary sediments from Caravaca, Spain. Earth Planet Sci Lett 73:183–195

    Article  Google Scholar 

  • Kyte FT, Zhou L, Wasson JT (1988) New evidence on the size and possible effects of a late Pliocene oceanic asteroid impact. Science 241:63–65

    Google Scholar 

  • Kyte FT, Leinen M, Heath GR, Zhou L (1993) Cenozoic sedimentation history of the central North Pacific: inferences from the elemental geochemistry of core LL44-GPC3. Geochim Cosmochim Acta 57:1719–1740

    Article  Google Scholar 

  • Larson RL (1991) Geological consequences of superplumes. Geology 19:963–966

    Article  Google Scholar 

  • Larson RL (1995) The Mid-Cretaceous superplume episode. Sci Am 272 (2):66–70

    Article  Google Scholar 

  • Leary PM, Rampino MR (1990) A multi-causal model of mass extinctions: increase in trace metals in the oceans. In: Kauffman EG, Walliser OH (eds) Extinction events in earth history. Lecture notes in earth science, vol 30. Springer, Berlin Heidelberg New York, pp 45–55

    Google Scholar 

  • Lehman SJ, Keigwin LD (1992) Sudden changes in North Atlantic circulation during the last deglaciation. Nature 356:757–762

    Article  Google Scholar 

  • Leroux H, Rocchia R, Froget L, Orue-Etxebarria X, Doukhan J-C, Robin E (1995) The K/T boundary at Beloc (Haiti): compared stratigraphic distributions of the boundary markers. Earth Planet Sci Lett 131:255–268

    Article  Google Scholar 

  • Lichte FE, Wilson SM, Brooks RR, Reeves RD, Holzbecher J, Ryan DE (1986) New method of measurement of osmium isotopes applied to a New Zealand Cretaceous/Tertiary boundary shale. Nature 322:816–817

    Article  Google Scholar 

  • Loper DE, McCartney K (1986) Mantle plumes and the periodicity of magnetic field reversals. Geophys Res Lett 13:1525–1528

    Google Scholar 

  • Loper DE, McCartney K (1990) On impacts as a cause of geomagnetic field reversals or flood basalts. Geol Soc Am Spec Publ 247:19–25

    Google Scholar 

  • Luck JM, Turekian KK (1983) Osmium-187/osmium-186 in manganese nodules and the Cretaceous-Tertiary boundary. Nature 222:613–615

    Google Scholar 

  • Lyons JB, Officer CB (1992) Mineralogy and petrology of the Haiti Cretaceous/Tertiary section. Earth Planet Sci Lett 109:205–224

    Article  Google Scholar 

  • MacLeod N, Keller G (1991a) How complete are Cretaceous/Tertiary boundary sections? A chronostratigraphic estimate based on graphic correlation. Bull Geol Soc Am 103:1439–1457

    Article  Google Scholar 

  • MacLeod N, Keller G (1991b) Hiatus distributions and mass extinctions at the Cretaceous/Tertiary boundary. Geology 19:497–501

    Article  Google Scholar 

  • Margolis SV, Claeys P, Kyte FT (1991) Microtektites, microkrystites, and spinels from a late Pliocene asteroid impact in the Southern Ocean. Science 251:1594–1597

    Google Scholar 

  • Margolis SV, Mount JF, Doehne E, Showers W, Ward P (1987) The Cretaceous/Tertiary boundary carbon and oxygen isotope stratigraphy, diagenesis, and paleoceanography at Zumaya, Spain. Paleoceanography 2:361–377

    Google Scholar 

  • Marshall CR (1995) Distinguishing between sudden and gradual extinctions in the fossil record: predicting the position of the Cretaceous-Tertiary iridium anomaly using the ammonite fossil record on Seymour Island, Antarctica. Geology 23:731–734

    Article  Google Scholar 

  • McArthur JM (1994) Recent trends in strontium isotope stratigraphy. Terra Nova 6:331–358

    Google Scholar 

  • McCartney K, Huffman AR, Tredoux M (1990) A paradigm for endogeneous causation of mass extinctions. Geol Soc Am Spec Publ 247:125–138

    Google Scholar 

  • McLaren DJ, Goodfellow WD (1990) Geological and biological consequences of giant impacts. Ann Rev Earth Planet Sci 18:123–171

    Article  Google Scholar 

  • McLean DM (1985a) Mantle degassing induced dead ocean in the Cretaceous-Tertiary transition. In: Sundquist ET, Broecker WS (eds) The carbon cycle and atmospheric CO2: natural variations Archean to Present. Am Geophys Un Geophys Monogr 32:493–503

    Google Scholar 

  • McLean DM (1985b) Deccan Traps mantle degassing in the terminal Cretaceous marine extinctions. Cret Res 6:235–259

    Article  Google Scholar 

  • Meisel T, Krähenbühl U, Nazarov MA (1995) Combined osmium and strontium isotopic study on the Cretaceous-Tertiary boundary at Sumbar, Turkmenistan: a test for an impact vs a volcanic hypothesis. Geology 23:313–316

    Article  Google Scholar 

  • Meyerhoff AA, Lyons JB, Officer CB (1994) Chicxulub structure: a volcanic sequence of late Cretaceous age. Geology 22:3–4

    Article  Google Scholar 

  • Michel HV, Asaro F, Alvarez W, Alvarez LW (1990) Geochemical studies of the Cretaceous-Tertiary boundary in ODP holes 689B and 690C. Proc Ocean Drilling Progr Sci Results 113:159–168

    Google Scholar 

  • Mitchell C, Widdowson M (1991) A geological map of the southern Deccan Traps, India and its structural implications. J Geol Soc Lond 148:495–505

    Google Scholar 

  • Moore CH (1989) Carbonate diagenesis and porosity. Elsevier, Amsterdam

    Google Scholar 

  • Morell V (1993) How lethal was the K-T impact? Science 261:1518–1519

    Google Scholar 

  • Napier WM, Clube SVM (1979) A theory of terrestrial catastrophism. Nature 282:455–459

    Article  Google Scholar 

  • Neruchev SG (1986) Global geochemical anomalies at the thresholds of intensive changes in organic life: Are their causes cosmic or terrestrial? Soviet Geol Geophys 27:22–29

    Google Scholar 

  • Officer C (1992) The relevance of iridium and microscopic dynamic deformation features toward understanding the Cretaceous/Tertiary transition. Terra Nova 4:394–404

    Google Scholar 

  • Officer C (1993) Victims of volcanoes. New Sci 137 (1861):34–38

    Google Scholar 

  • Officer CB, Drake CL (1983) The Cretaceous-Tertiary transition. Science 219:1383–1390

    Google Scholar 

  • Officer CB, Drake CL (1985) Terminal Cretaceous environmental events. Science 227:1161–1167

    Google Scholar 

  • Officer CB, Lyons JB (1993) A short note on the origin of the yellow glasses at the Haiti Cretaceous/Tertiary section. Earth Planet Sci Lett 118:349–351

    Article  Google Scholar 

  • Officer C, Page J (1993) Tales of the earth’s paroxysms and perturbations of the blue planet. Oxford University Press, Oxford

    Google Scholar 

  • Officer CB, Hallam A, Drake CL, Devine JD (1987) Late Cretaceous and paroxysmal Cretaceous/Tertiary extinctions. Nature 326:143–149

    Article  Google Scholar 

  • Olmez I, Finnegan DL, Zoller WH (1986) Iridium emissions from Kilauea volcano. J Geophys Res 91:653–662

    Google Scholar 

  • Orth CJ, Attrep M, Quintana LR, Elder WP, Kauffman EG, Diner R, Villamil T (1993) Elemental abundance anomalies in the late Cenomanian extinction interval: a search for the source(s). Earth Planet Sci Lett 117:189–204

    Article  Google Scholar 

  • Orth CJ, Gilmore JS, Knight JD, Pillmore CL, Tschudy RH, Fassett JE (1982) Iridium abundance measurements across the Cretaceous/Tertiary boundary in the San Juan and Raton Basins of northern New Mexico. Geol Soc Am Spec Pap 190:423–433

    Google Scholar 

  • Owen RM, Zimmerman ARB (1991) Geochemistry of the Cretaceous/Tertiary boundary at hole 752B, Broken Ridge. Proc Ocean Drilling Progr Sci Results 121:423–433

    Google Scholar 

  • Palmer M (1991) Acid rain at the K/T boundary. Nature 352:758

    Article  Google Scholar 

  • Pandey J (1990) Cretaceous/Tertiary boundary, iridium anomaly and foraminifer breaks in the Um Sohryngkew river section, Meghalaya. Curr Sci 59:570–575

    Google Scholar 

  • Park J, Ogelsby RJ (1991) Milankovitch rhythms in the Cretaceous: a GCM modelling study. Global Planet Change 4:329–355

    Article  Google Scholar 

  • Park J, D’Hondt SL, King JW, Gibson C (1993) Late-Cretaceous precessional cycles in double time: a warm-earth Milankovitch response. Science 261:1431–1434

    Google Scholar 

  • Patterson C, Smith AB (1987) Is the periodicity of extinctions a taxonomic artefact? Nature 330:248–251

    Article  Google Scholar 

  • Paul CRC, Mitchell SF (1994) Is famine a common factor in marine mass extinctions? Geology 22:679–682

    Article  Google Scholar 

  • Peng ZX, Mahoney J (1995) Drillhole lavas from the northwestern Deccan Traps, and the evolution of the Reunion hotspot mantle. Earth Planet Sci Lett 134:169–185

    Article  Google Scholar 

  • Peng ZX, Mahoney J, Hooper P, Harris C, Beane J (1994) A role of lower continental crust in flood basalt genesis? Isotopic and incompatible element study of the lower six formations of the western Deccan Traps. Geochim Cosmochim Acta 58:267–288

    Article  Google Scholar 

  • Peryt D, Wyrwicka K (1991) The Cenomanian-Turonian oceanic anoxic event in SE Poland. Cret Res 12:65–80

    Article  Google Scholar 

  • Pollack JB, Toon OB, Ackerman TP, McKay CP, Turco RP (1983) Environmental effects of an impact-generated dust cloud: implications for the Cretaceous-Tertiary extinctions. Science 219:287–289

    Google Scholar 

  • Pope KO, Baines KH, Ocampo AC, Ivanov BA (1994) Impact winter and the Cretaceous-Tertiary extinctions: results of the Chicxulub asteroid impact model. Earth Planet Sci Lett 128:719–725

    Article  Google Scholar 

  • Pospichal JJ (1991) Calcareous nannofossils across Cretaceous/Tertiary boundary at site 752, eastern Indian Ocean. Proc Ocean Drilling Progr Sci Results 121:395–413

    Google Scholar 

  • Pospichal JJ (1994) Calcareous nannofossils at the K-T boundary, El Kef: no evidence for stepwise, gradual or sequential extinctions. Geology 22:99–102

    Article  Google Scholar 

  • Pospichal JJ, Bralower TJ (1992) Calcareous nannofossils across the Cretaceous/Tertiary boundary, site 752, northwest Australian margin. Proc Ocean Drilling Progr Sci Results 122:735–751

    Google Scholar 

  • Pospichal JN, Huber BT (1992) The Cretaceous/Tertiary boundary in the southern Indian Ocean: results from the coring operations of the Ocean Drilling Program. In: Synthesis of results from scientific drilling in the Indian Ocean. Am Geophys Un Geophys Monogr 70:275–294

    Google Scholar 

  • Prasad GVR, Khajuria CK (1995) Implications of the infra- and inter-trappean biota from the Deccan, India, for the role of volcanism in Cretaceous-Tertiary boundary extinctions. J Geol Soc Lond 152:289–296

    Google Scholar 

  • Pratt L, Force ER, Pomerol B (1991) Coupled manganese and carbon-isotopic events in marine carbonates at the Cenomanian-Turonian boundary. J Sedimentol Petrol 61:370–383

    Google Scholar 

  • Preisinger A, Zobetz E, Gratz AJ, Lahodynsky R, Becke M, Mauritsch HJ, Eder G, Grass F, Rögl F, Stradner H, Surenian R (1986) The Cretaceous-Tertiary boundary in the Gosau Basin, Austria. Nature 322:794–799

    Article  Google Scholar 

  • Premovic PI, Pavlovic NZ, Pavlovic MS, Nikolic ND (1993) Physicochemical conditions of sedimentation of the Fish Clay from Stevns Klint, Denmark, and its detrital nature: vanadium and other supportive evidence. Geochim Cosmochim Acta 57:1433–1446

    Article  Google Scholar 

  • Prinn RG, Fegley B (1987) Bolide impacts, acid rain and biospheric traumas at the Cretaceous-Tertiary boundary. Earth Planet Sci Lett 83:1–15

    Article  Google Scholar 

  • Radhakrishna BP (1991) An expansion into the past — “the Deccan volcanic episode”. Curr Sci 61:641–647

    Google Scholar 

  • Ragnarsdottir KV, Gislason SR, Thorvaldsson T, Kemp AJ, Andresdottir A (1994) Ejection of trace metals from volcanoes. Mineral Mag 58A:752–753

    Google Scholar 

  • Raju DSN, Ravindram CN, Dave A, Jaiprakash BC, Singh J (1991) K/T boundary events in the Cauvery and Krishna-Godavari basins and the age of Deccan volcanism. Geoscience J 12:177–190

    Google Scholar 

  • Raju DSN, Jaiprakash BC, Kumar A, Dave A, Chatterjee TK, Mishra CM (1995) Age of Deccan volcanism across KTB in Krishna-Godavari basin: new evidence. J Geol Soc Ind 45:229–233

    Google Scholar 

  • Rampino M (1989) Dinosaurs, comets and volcanoes. New Sci 121 (1652):54–58

    Google Scholar 

  • Rampino MR, Caldeira K (1993) Major episodes of geological change: correlations, time structure and possible causes. Earth Planet Sci 114:215–227

    Article  Google Scholar 

  • Rampino MR, Reynolds RC (1983) Clay mineralogy of the Cretaceous-Tertiary boundary clay. Science 219:495–498

    Google Scholar 

  • Rampino MR, Self S (1992) Volcanic winter and accelerated glaciation following the Toba super eruption. Nature 359:50–52

    Article  Google Scholar 

  • Rampino MR, Stothers RB (1988) Flood basalt volcanism during the past 250 million years. Science 241:663–668

    Google Scholar 

  • Rampino MR, Volk T (1988) Mass extinctions, atmospheric sulfur and climatic warming at the K/T boundary. Nature 332:63–65

    Article  Google Scholar 

  • Rampino MR, Self S, Fairbridge RW (1979) Can rapid climatic change cause volcanic eruptions? Science 206:826–829

    Google Scholar 

  • Rampino MR, Self S, Stothers RB (1988) Volcanic winters. Ann Rev Earth Planet Sci 16:73–99

    Article  Google Scholar 

  • Raup DM (1986) Biological extinction in earth history. Science 231:1528–1533

    Google Scholar 

  • Raup DM, Sepkoski JJ (1986) Periodic extinction of families and genera. Science 231:833–836

    Google Scholar 

  • Rhodes MC, Thayer CW (1991). Mass extinctions: ecological selectivity and primary production. Geology 19:877–890

    Article  Google Scholar 

  • Rice A (1990) Shock pressures in igneous processes: implications for KT events. In: Kauffman EG, Walliser OH (eds) Extinction events in earth history. Lecture notes in earth science, vol 30. Springer, Berlin Heidelberg New York, pp 59–83

    Google Scholar 

  • Rice A (1995) Volcanically induced greenhouse: a cause for extinctions. Terra Abstr Abstr Suppl 1 to Terra Nova 7:23 (abstract)

    Google Scholar 

  • Richards MA, Duncan RA, Courtillot VE (1989) Flood basalts and hot-spot tracks: plume heads and tails. Science 246:103–107

    Google Scholar 

  • Robin E, Froget L, Jéhanno C, Rocchia R (1993) Evidence for a K/T impact event in the Pacific Ocean. Nature 363:615–617

    Article  Google Scholar 

  • Robin E, Rocchia R, Lyons JB, Officer CB (1994) Reply. Geology 22:958

    Google Scholar 

  • Rocchia R (1993) La catastrophe de la fin de l’ère secondaire. La Recherche 260:1344–1353

    Google Scholar 

  • Rocchia R, Boclet D, Courtillot V, Jaeger JJ (1988) A search for iridium concentration in Deccan Traps and intertraps. Geophys Res Lett 18:812–815

    Google Scholar 

  • Rocchia R, Boclet D, Bonte P, Froget L, Galbrun B, Jehanno C, Robin E (1992) Iridium and other element distributions, mineralogy, and magnetostratigraphy near the Cretaceous/Tertiary boundary in hole 761C. Proc Ocean Drilling Progr Sci Results 122:753–762

    Google Scholar 

  • Rohling EJ, Zachariasse WJ, Bruinkhuis H (1991) A terrestrial scenario for the Cretaceous-Tertiary boundary collapse of the marine pelagic ecosystem. Terra Nova 3:41–48

    Google Scholar 

  • Rose WI, Chesner CA (1990) Worldwide dispersal of ash and gases from earth’s largest known eruption: Toba, Sumatra, 75 ka. Global Planet Change 89:269–275

    Article  Google Scholar 

  • Russell DA (1979) The enigma of the extinction of the dinosaurs. Ann Rev Earth Planet Sci 7:163–182

    Article  Google Scholar 

  • Sahni A, Bajpai S (1988) Cretaceous-Tertiary boundary events: the fossil vertebrate, palaeomagnetic and radiometric evidence from Peninsula India. J Geol Soc Ind 32:382–396

    Google Scholar 

  • Sarkar A, Bhatacharya SK, Shukla PN, Bhandari N, Naidin DP (1992) High-resolution profile of stable isotopes and iridium across a K/T boundary section from Koshak Hill, Mangyshlak, Kazakhstan. Terra Nova 4:585–590

    Google Scholar 

  • Sawlowicz Z (1993) Iridium and other platinum-group elements as geochemical markers in sedimentary environments. Palaeogeogr Palaeoclimatol Palaeoecol 104:253–270

    Article  Google Scholar 

  • Schmitz B (1985) Metal precipitation in the Cretaceous-Tertiary boundary clay at Stevns Klint, Denmark. Geochim Cosmochim Acta 49:2361–2370

    Article  Google Scholar 

  • Schmitz B (1988) Origin of microlayering in worldwide distributed Ir-rich marine Cretaceous/Tertiary boundary clays. Geology 16:1068–1072

    Article  Google Scholar 

  • Schmitz B (1990) Comments and replies on “Origin of microlayering in worldwide distributed Ir-rich marine Cretaceous/Tertiary boundary clays”. Geology 18:87–94

    Article  Google Scholar 

  • Schmitz B (1992) Chalcophile elements and Ir in continental Cretaceous-Tertiary boundary clays from the western interior of the USA. Geochim Cosmochim Acta 56:1695–1703

    Article  Google Scholar 

  • Schmitz B, Andersson P, Dahl J (1988) Iridium, sulfur isotopes and rare earth elements in the Cretaceous-Tertiary boundary clay at Stevns Klint, Denmark. Geochim Cosmochim Acta 52:229–236

    Article  Google Scholar 

  • Schmitz B, Asaro F, Michel HV, Thierstein HR, Huber BT (1991) Element stratigraphy across the Cretaceous/Tertiary boundary in hole 738C. Proc Ocean Drilling Progr Sci Results 119:719–730

    Google Scholar 

  • Schmitz B, Keller G, Stenvall O (1992) Stable isotope and foraminiferal changes across the Cretaceous-Tertiary boundary at Stevns Klint, Denmark: arguments for long-term oceanic instability before and after bolide impact event. Palaeogeogr Palaeoclimatol Palaeoecol 96:233–260

    Article  Google Scholar 

  • Scholle PA (1974) Diagenesis of Upper Cretaceous chalks from England, Northern Ireland, and the North Sea. Spec Publ Int Assoc Sediment 1:177–210

    Google Scholar 

  • Sclater JG, Boyle E, Edmond JM (1979) A quantitative analysis of some factors affecting carbonate sedimentation in oceans. In: Talwani M, Hay W, Ryan WBF (eds) Deep drilling results in the Atlantic Ocean: continental margins and paleoenvironment. Am Geophys Un, Maurice Ewing Ser, vol 3, pp 235–248

    Google Scholar 

  • Self S, Thordarson T (1995) On the atmospheric impact of flood basalt volcanism. Terra Abstr Abstr Suppl 1 to Terra Nova 7:23 (abstract)

    Google Scholar 

  • Sen G, Cohen TH (1993) Deccan intrusion, crustal extension, doming and the size of the Deccan-Reunion plume head. In: Subbarao KV (ed) Volcanism. Wiley Eastern Ltd, Bombay, pp 201–216

    Google Scholar 

  • Sepkoski J (1989) Periodicity in extinction and the problem of catastrophism in the history of life. J Geol Soc Lond 146:7–19

    Google Scholar 

  • Sharpton VL, Dalrymple GB, Marin LE, Ryder G, Schuraytz C, Urrutia-Fucugauchi J (1992) New links between the Chicxulub impact structure and the Cretaceous/Tertiary boundary. Nature 359:819–821

    Article  Google Scholar 

  • Sharpton VL, Burke K, Camargo-Zanoguera A, Hall SA, Lee DS, Marín LE, Suárez-Reynoso G, Quezada-Muñeton JM, Spudis PD, Urrutia-Fucujauchi J (1993) Chicxulub multiring impact basin: size and other characteristics derived from gravity analysis. Science 261:1564–1567

    Google Scholar 

  • Sheehan PM, Hansen TA (1986) Detritus feeding as a buffer to extinction at the end of the Cretaceous. Geology 14:868–870

    Article  Google Scholar 

  • Sheehan PM, Fastovsky DE, Hoffmann RG, Berghaus CB, Gabriel DL (1991) Sudden extinction of the dinosaurs: Latest Cretaceous, Uppr Great Plains, U.S.A. Science 254:835–839

    Google Scholar 

  • Sigurdsson H (1990a) Evidence of volcanic loading of the atmosphere and climate response. Global Planet Change 3:277–289

    Article  Google Scholar 

  • Sigurdsson H (1990b) Assessment of atmospheric impact of volcanic eruptions. Geol Soc Am Spec Publ 247:99–110

    Google Scholar 

  • Sigurdsson H, D’Hondt S, Carey S (1992) The impact of the Cretaceous/Tertiary bolide on evaporite terrane and generation of major sulfuric acid aerosol. Earth Planet Sci Lett 109:543–559

    Article  Google Scholar 

  • Sleep NH (1992) Hotspot volcanism and mantle plumes. Ann Rev Earth Planet Sci 20:19–43

    Article  Google Scholar 

  • Sloan RE, Rigby JK, Van Valen LM, Gabriel D (1986) Gradual dinosaur extinction and simultaneous ungulate radiation in the Hell Creek formation. Science 232:629–633

    Google Scholar 

  • Smit J (1994) Blind tests and muddy waters. Nature 368:809–810

    Article  Google Scholar 

  • Smit J, Hertogen J (1980) An extraterrestrial event at the Cretaceous-Tertiary boundary. Nature 285:198–200

    Article  Google Scholar 

  • Smit J, Montanavi A, Swinburne NHM, Alvarez W, Hildebrand AR, Margolis SV, Claeys P, Lowrie W, Asaro F (1992) Tektite-bearing, deep-water clastic unit at the Cretaceous-Tertiary boundary in northeastern Mexico. Geology 20:99–103

    Article  Google Scholar 

  • Smit J, Roep Th B, Alvarez W, Claeys Ph, Montanari A (1994) Deposition of channel deposits near the Cretaceous-Tertiary boundary in northeastern Mexico: catastrophic or “normal” sedimentary deposits? Comments and replies and Is there evidence for Cretaceous-Tertiary boundary-age deep-water deposits in the Caribbean and Gulf of Mexico? Comment and reply. Geology 22:953–954

    Article  Google Scholar 

  • Smit J, Kate WGHZ ten (1982) Trace-element patterns at the Cretaceous-Tertiary boundary — consequences of a large impact. Cret Res 3:307–332

    Article  Google Scholar 

  • Smit J, Romein AJT (1985) A sequence of events across the Cretaceous-Tertiary boundary. Earth Planet Sci Lett 74:155–170

    Article  Google Scholar 

  • Spicer RA (1989) Plants at the Cretaceous-Tertiary boundary. Phil Trans R Soc Lond B325:291–305

    Google Scholar 

  • Spicer RA, Parrish JT (1990) Late Cretaceous-Early Tertiary palaeoclimates of northern high lattitudes: a quantitative view. J Geol Soc Lond 147:329–341

    Google Scholar 

  • Stinnesbeck W, Keller G (1995) The Cretaceous-Tertiary boundary in southern low-latitude regions: preliminary study in Pernambuco, northeastern Brazil. Comments and reply. Terra Nova 7:375–382

    Google Scholar 

  • Stinnesbeck W, Barbarin JM, Keller G, Lopez-Oliva JG, Pivnik DA, Lyons JB, Officer CB, Adatte T, Graup G, Rocchia R, Robin E (1993) Deposition of channel deposits near the Cretaceous-Tertiary boundary in northeastern Mexico: catastrophic or “normal” sedimentary deposits? Geology 21:797–800

    Article  Google Scholar 

  • Stinnesbeck W, Keller G, Adatte T, MacLeod N (1994) Reply. Geology 22:955–956

    Google Scholar 

  • Stoffers P, Devey C et al. (1994) Cruise report SO-87:the Réunion hotspot. Ber-Reps Geol-Paläont Inst Univ Kiel 65:1–116

    Google Scholar 

  • Stothers, RB, Wolff JA, Self S, Rampino MR (1986) Basalt fissure eruptions, plume height and atmospheric aerosols. Geophys Res Lett 13:725–728

    Google Scholar 

  • Stott LD, Kennett JP (1989) New productivity constraints on early Tertiary palaeoproductivity from carbon isotopes in foraminifera. Nature 342:526–529

    Article  Google Scholar 

  • Stott LD, Kennett JP (1990) The paleoceanographic and paleoclimatic signature of the Cretaceous/Paleogene boundary in the Antarctic: stable isotopic results from ODP Leg 113. Proc Ocean Drilling Progr Sci Results 113:829–848

    Google Scholar 

  • Strong CP, Brooks RR, Wilson SM, Reeves RD, Orth CJ, Mao X-Y, Quintana LR, Anders E (1987) A new Cretaceous-Tertiary boundary site at Flaxbourne River, New Zealand: biostratigraphy and geochemistry. Geochim Cosmochim Acta 51:2769–2777

    Article  Google Scholar 

  • Surlyk F, Johansen MB (1984) End-Cretaceous brachiopod extinctions in the chalk of Denmark. Science 223:11784–11787

    Google Scholar 

  • Sutherland FL (1994) Volcanism around K/T boundary time — its role in an impact scenario for K/T extinction events. Earth Sci Rev 36:1–26

    Article  Google Scholar 

  • Sweet AR, Braman DR (1992) The K-T boundary and contiguous strata in western Canada: interactions between paleoenvironments and palynological assemblages. Cret Res 13:31–79

    Article  Google Scholar 

  • Swinburne N (1993) It came from outer space. New Sci 137(1861):28–32

    Google Scholar 

  • Swisher CC, Grajales-Nishimura JM, Montanari A, Margolis SV, Claeys P, Alvarez W, Renne P, Cedillo-Pardo E, Maurrasse FJ-MR, Curtis GH, Smit J, McWilliams MO (1992) Coeval40Ar/39Ar ages of 65.0 million years ago from Chicxulub crater melt rock and Cretaceous-Tertiary boundary tektites. Science 257:954–958

    Google Scholar 

  • Sykes TJS, Kidd RB (1994) Volcanogenic sediment distributions in the Indian Ocean through the Cretaceous and Cenozoic, and their palaeo-environmental implications. Mar Geol 116:267–291

    Article  Google Scholar 

  • Taran YuA, Hedenquist JW, Korzhinsky MA, Tkachenko SI, Shmulovich KI (1995) Geochemistry of magmatic gases from Kudryavy volcano, Iturup, Kuril Islands. Geochim Cosmochim Acta 59:1749–1761

    Article  Google Scholar 

  • Thierstein HR, Asaro F, Ehrmann WU, Huber B, Michel H, Sakai H, Schmitz B (1991) The Cretaceous/Tertiary boundary at site 738, southern Kerguelen Plateau. Proc Ocean Drilling Progr Sci Results 119:849–867

    Google Scholar 

  • Thomson J, Higgs NC, Croudace IW, Colley S, Hydes DJ (1993) Redox zonation of elements at an oxic/post-oxic boundary in deep-sea sediments. Geochim Cosmochim Acta 57:579–595

    Article  Google Scholar 

  • Thordarson T, Self S (1993) The Laki (Skaftar fires) and Grimsvoln eruptions in 1983–1985. Bull Volcanol 55:233–263

    Article  Google Scholar 

  • Toon OB (1984) Sudden changes in atmospheric composition and climate. In: Holland HD, Trendall AF (eds) Patterns of change in earth evolution. Springer, Berlin Heidelberg New York, pp 41–61

    Google Scholar 

  • Tredoux M, Wit MJ de, Hart RJ, Lindsay NM, Verhagen B, Sellschop JPF (1989) Chemostratigraphy across the Cretaceous-Tertiary boundary and a critical assessment of the iridium anomaly. J Geol 97:585–605

    Article  Google Scholar 

  • Turco RP, Toon OB, Ackerman TP, Pollack JB, Sagan C (1991) Nuclear winter: physics and physical mechanisms. Ann Rev Earth Planet Sci 19:383–422

    Article  Google Scholar 

  • Urey HC (1973) Cometary collisions and geological periods. Nature 242:32–33

    Article  Google Scholar 

  • Vandamme O, Courtillot V, Besse J, Montigney R (1991) Paleomagnetism and age determinations of the Deccan Traps (India): results of a Nagpur-Bombay traverse and review of earlier work. Rev Geophys 29:159–190

    Google Scholar 

  • Venkatesan TR, Pande K, Gopalan K (1993) Did Deccan volcanism pre-date the Cretaceous-Tertiary boundary? Earth Planet Sci Lett 119:181–189

    Article  Google Scholar 

  • Verma RK (1991) Geodynamics of Indian peninsula and the Indian plate margin. A. A. Balkema, Rotterdam

    Google Scholar 

  • Viswanathan S, Chandrasekharam D (1981) Geochemical comparison of the Siberian and Deccan Traps. In: Subbarao KV, Sukheswala RN (eds) Deccan volcanism and related basalt provinces in other parts of the world. Geol Soc Ind Mem 3:460–471

    Google Scholar 

  • Vogelmann AM, Ackerman TP, Turco RP (1992) Enhancements in biologically effective ultraviolet radiation following volcanic eruptions. Nature 359:47–49

    Article  Google Scholar 

  • Vogt PR (1972) Evidence for global synchronism in mantle plume convection, and possible significance for geology. Nature 240:338–342

    Article  Google Scholar 

  • Wadia DN (1983) Geology of India, 2nd edn. Tata McGraw-Hill Books Co, New Delhi

    Google Scholar 

  • Ward PD (1990) The Cretaceous/Tertiary extinctions in the marine realm: a 1990 perspective. Geol Soc Am Spec Publ 247:425–432

    Google Scholar 

  • Ward WC, Keller G, Stinnesbeck W, Adatte T (1995) Yucatan subsurface stratigraphy: implications and constraints for the Chicxulub impact. Geology 23:873–876

    Article  Google Scholar 

  • Wells MC, Boothe PN, Presley BJ (1988) Iridium in marine organisms. Geochim Cosmochim Acta 52:1737–1739

    Article  Google Scholar 

  • West WD (1981) The duration of Deccan Trap volcanicity. In: Subbarao KV, Sukheswala RN (eds) Deccan volcanism and related basalt provinces in other parts of the world. Geol Soc Ind Mem 3:277–278

    Google Scholar 

  • White RS (1993) Melt production rates in mantle plumes. Phil Trans R Soc Lond A342:137–153

    Article  Google Scholar 

  • White RS, McKenzie DR (1989) Volcanism at rifts. Sci Am 261:44–55

    Google Scholar 

  • Wiedmann J (1986) Macro-invertebrates and the Cretaceous-Tertiary boundary. In: Walliser OH (ed) Global bio-events. Lecture notes in earth sciences, vol 8, Springer, Berlin Heidelberg New York, pp 397–409

    Google Scholar 

  • Wignall P (1992) The day the world nearly died. New Sci 133(1805):51–55

    Google Scholar 

  • Wignall PB, Hallam A (1992) Anoxia as a cause of the Permian/Triassic mass extinction: facies evidence from northern Italy and the western United States. Palaeogeogr Palaeoclimatol Palaeoecol 93:21–46

    Article  Google Scholar 

  • Wilde P, Berry BN (1986) The role of oceanographic factors in the generation of global bio-events. In: Walliser OH (ed) Global bio-events. Lecture notes in earth sciences, vol 8. Springer, Berlin Heidelberg New York, pp 75–91

    Google Scholar 

  • Wilde P, Quinby-Hunt MS, Berry WBN (1990) Vertical advection from oxic or anoxic water from the main pycnocline as a cause of rapid extinction or rapid radiation. In: Kauffman EG, Walliser OH (eds) Extinction events in earth history. Lecture notes in earth science, vol 30. Springer, Berlin Heidelberg New York, pp 85–98

    Google Scholar 

  • Wilkins A, Subbarao KV, Ingram G, Walsh JN (1993) Weathering regimes within the Deccan basalts. In: Subbarao KV (ed) Volcanism. Wiley Eastern Ltd, Bombay, pp 217–231

    Google Scholar 

  • Wolbach WS, Gilmour I, Anders E, Orth CJ, Brooks RR (1988) Global fire at the Cretaceous-Tertiary boundary. Nature 334:665–669

    Article  Google Scholar 

  • Wolbach WS, Gilmour I, Anders E (1990) Major wildfires at the Cretaceous/Tertiary boundary. Geol Soc Am Spec Publ 247:391–400

    Google Scholar 

  • Wolfe JA (1987) Vegetation, climatic and floral changes at the Cretaceous-Tertiary boundary. Nature 324:148–152

    Article  Google Scholar 

  • Wolfe JA (1990) Palaeobotanical evidence for a marked temperature increase following the Cretaceous-Tertiary boundary. Nature 343:153–156

    Article  Google Scholar 

  • Woods AW (1983) A model of the plumes above basalt fissure eruptions. Geophys Res Lett 20:1115–1118

    Google Scholar 

  • Zachos JC, Arthur MA (1986) Paleoceanography of the Cretaceous/Tertiary boundary event: inferences from stable isotopic and other data. Paleoceanography 1:5–26

    Article  Google Scholar 

  • Zachos JC, Arthur MA, Dean WC (1989) Geochemical evidence for suppression of pelagic marine productivity at the Cretaceous/Tertiary boundary. Nature 337:61–64

    Article  Google Scholar 

  • Zahnle K, Grinspoon D (1990) Comet dust as a source of amino acids at the Cretaceous/Tertiary boundary. Nature 348:157–160

    Article  Google Scholar 

  • Zhao M, Bada JL (1989) Extraterrestrial amino acids in Cretaceous/Tertiary boundary sediments at Stevns Klint, Denmark. Nature 339:463–465

    Article  Google Scholar 

  • Zhao Z-m, Wang J-k, Chen S-x, Zhong Y-m (1993) Amino acid composition of dinosaur eggshells nearby the K/T boundary in Nanxiong Basin, Guangdong Province, China. Palaeogeogr Palaeoclimatol Palaeoecol 104:213–218

    Article  Google Scholar 

  • Zöller WH, Parrington JR, Phelan Kotra JM (1983) Iridium enrichment in airborne particles from Kilauea volcano: January 1983. Science 222:1118–1121

    Google Scholar 

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  1. Department of Earth Sciences, University of Sheffield, S10 2UH, Sheffield, England

    G. P. Glasby

  2. Environmental Science and Technology Department, Risø National Laboratory, P.O. Box 49, DK-4000, Roskilde, Denmark

    H. Kunzendorf

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Glasby, G.P., Kunzendorf, H. Multiple factors in the origin of the Cretaceous/Tertiary boundary: the role of environmental stress and Deccan Trap volcanism. Geol Rundsch 85, 191–210 (1996). https://doi.org/10.1007/BF02422228

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