Facies

, Volume 60, Issue 2, pp 615–629 | Cite as

The seafloor after a bolide impact: sedimentary and biotic signatures across the Late Devonian carbonate platform following the Alamo Impact Event, Nevada, USA

  • Leif Tapanila
  • Julia R. Steenberg
  • Carrie J. Johnson
  • Reed A. Myers
Original Article

Abstract

Eighty measured stratigraphic sections across the Late Devonian carbonate platform of Nevada (USA) document the uppermost terminal Alamo Breccia and overlying sediments, which record the waning energy at the end of an impact and the recolonization of the post-impact seafloor. Four sedimentary styles of terminal breccia, recognized by the continuity of normal grading versus reworking, and dolomitization, define patterns of sedimentary accommodation across the platform. Examined in combination with the first post-impact facies, the field area can be divided into deep subtidal, shallow subtidal, and peritidal zones with increased distance from the inferred crater center. Farthest away, peritidal outcrops have very low accommodation, and the terminal breccia is physically reworked and dolomitized. Biotic signals are rare in this zone. However, we find rare but exceptional deposits of impact fallout lapilli at or above the top of the breccia. The shallow subtidal region records reworked and pristine grading of the terminal breccia, which at several locations document burrowing directly into the top of the Alamo Breccia, confirming infaunal recolonization prior to post-impact sediment accumulation. Rare occurrences of erosional terminal breccia produced rockgrounds at the seafloor, some showing evidence of bioerosion. Deeper subtidal localities, closest to the crater center, preserve the thickest, continuously graded terminal breccias owing to high accommodation at the end of the event. Body and trace fossils are common in the first overlying lithofacies, although the abundance of oxidized firmground surfaces in deep water settings suggest these deposits were sediment-starved and fossil assemblages are strongly time-averaged.

Keywords

Frasnian Meteor Event stratigraphy Event bed Catastrophic 

Supplementary material

10347_2014_398_MOESM1_ESM.docx (19 kb)
Supplementary material 1 (DOCX 18 kb) Online resource 1 Index and position of field localities in this study

References

  1. Anderson JR (2008) Reconstructing the aftermath of the Late Devonian Alamo Meteor Impact in the Pahranagat Range, southeastern Nevada. Master’s Thesis, Idaho State UniversityGoogle Scholar
  2. Dypvik H, Kalleson E (2010) Mechanisms of late synimpact to early postimpact crater sedimentation in marine-target impact structures. In: Gibson RL, Reimold WU (eds) Large meteorite impacts and planetary evolution IV. Geol Soc Am Spec Paper, vol 465, pp 301–318Google Scholar
  3. Giles K, Dickinson WR (1995) The interplay of eustasy and lithospheric flexure in forming stratigraphic sequences in foreland settings: an example from the Antler foreland, Nevada and Utah. In: Dorobek SL, Ross GM (eds) Stratigraphic evolution of foreland basins. SEPM Spec Publ, vol 52, pp 187–211Google Scholar
  4. Goebel KA (1991) Paleogeographic setting of the Late Devonian to Early Mississippian transition from passive to collisional margin, Antler foreland, eastern Nevada and western Utah. In: Cooper JD, Stevens CH (eds) Paleozoic paleogeography of the western United States II. Pacific Section SEPM, vol 67, pp 401–418Google Scholar
  5. Johnson JG, Sandberg CA (1989) Devonian eustatic events in the western United States and their biostratigraphic responses. In: McMillan NJ, Embry AF, Glass DJ (eds) Devonian of the world. Can Soc Petrol Geol Memoir, vol 14(III), pp 171–178Google Scholar
  6. Johnson JG, Klapper G, Sandberg CA (1985) Devonian eustatic fluctuations in Euramerica. Geol Soc Am Bull 96:567–587CrossRefGoogle Scholar
  7. Kaufmann B (2006) Calibrating the Devonian time scale: a synthesis of U-Pb ID-TIMS ages and conodont stratigraphy. Earth Sci Rev 76:175–190CrossRefGoogle Scholar
  8. Koeberl C, Huber H, Morgan M, Warme JE (2003) Search for an extraterrestrial component in the Late Devonian Alamo impact Breccia, Nevada: Results of iridium measurements. In: Koeberl C, Martínez-Ruiz F (eds) Impact markers in the stratigraphic record. Springer, Berlin Heidelberg New York, pp 315–332CrossRefGoogle Scholar
  9. Kuehner H-C (1997) The Late Devonian Alamo impact Breccia, southeastern Nevada. Dissertation, Colorado School of Mines, GoldenGoogle Scholar
  10. Leroux H, Warme JE, Doukhan JC (1995) Shocked quartz in the Alamo Breccia, southern Nevada: evidence for a Devonian impact event. Geology 23:1003–1006CrossRefGoogle Scholar
  11. Lindström M, Flodén T, Grahn Y, Kathol B (1994) Postimpact deposits in Tvären, a marine Middle Ordovician crater south of Stockholm, Sweden. Geol Mag 131:91–103CrossRefGoogle Scholar
  12. Morrow JR, Sandberg CA, Harris AG (2005) Late Devonian Alamo Impact, southern Nevada, USA: evidence of size, marine site, and widespread effects. In: Kenkmann T, Hörz F, Deutsch A (eds) Large meteorite impacts III. Geol Soc Am Spec Paper, vol 384, pp 259–280Google Scholar
  13. Morrow JR, Sandberg CA, Malkowski K, Joachimski MM (2009) Carbon isotope chemostratigraphy and precise dating of middle Frasnian (lower Upper Devonian) Alamo Breccia, Nevada, USA. Palaeogeogr Palaeoclimatol Palaeoecol 282:105–118CrossRefGoogle Scholar
  14. Myers R (2011) Evaluating the controls on deposition of Devonian the Upper Alamo Breccia and overlying strata, Timpahute Range, Nevada. Master’s Thesis, Idaho State UniversityGoogle Scholar
  15. Pinto JA, Warme JE (2008) Alamo Event, Nevada: Crater stratigraphy and impact breccia realms. In: Evans KR, Horton JW Jr, King DT Jr, Morrow JR (eds) The sedimentary record of meteorite impacts. Geol Soc Am Spec Paper, vol 437, pp 99–137Google Scholar
  16. Poag WC (2002) Synimpact-postimpact transition inside Chesapeake Bay crater. Geology 30:995–998CrossRefGoogle Scholar
  17. Poag WC (2009) Paleoenvironment recovery from the Chesapeake Bay bolide impact: the benthic foraminiferal record. In: Gohn GS, Koeberl C, Miller KG, Reimold WU (eds) The ICDP-USGS Deep Drilling Project in the Chesapeake Bay Impact Structure: results from the Eyreville core holes. Geol Soc Am Spec Paper, vol 458, pp 747–773Google Scholar
  18. Poag WC, Koeberl C, Reimold WU (eds) (2004) Chesapeake Bay Crater; geology and geophysics of a Late Eocene submarine impact structure. Springer, Berlin Heidelberg New YorkGoogle Scholar
  19. Rendall BE (2013) Effect of the Alamo impact event on accomodation trends and paleoecology in the Guilmette Formation, Lincoln and Nye counties, Nevada. Master's Thesis, Idaho State UniversityGoogle Scholar
  20. Retzler A (2013) Post-impact depositional environments as a proxy for crater morphology, Late Devonian Alamo impact event, Nevada. Master's Thesis, Idaho State UniversityGoogle Scholar
  21. Rodríguez-Tovar FJ (2005) Fe-oxide spherules infilling Thalassinoides burrows at the Cretaceous–Paleogene (K–P) boundary: evidence of a near-contemporaneous macrobenthic colonization during the K–P event. Geology 33:585–588CrossRefGoogle Scholar
  22. Sandberg CA, Warme JE (1993) Conodont dating, biofacies, and catastrophic origin of Late Devonian (early Frasnian) Alamo Breccia, southern Nevada. Geol Soc Am Abstr Progr 25:77Google Scholar
  23. Sandberg CA, Poole FG, Johnson JG (1989) Upper Devonian of western United States. In: McMillan NJ, Embry AF, Glass DJ (eds) Devonian of the world. Can Soc Petrol Geol Mem, vol 14, pp 183–220Google Scholar
  24. Sandberg CA, Morrow JR, Warme JE (1997) Late Devonian Alamo Impact Event, global Kellwasser events, and major eustatic events, eastern Great Basin, Nevada and Utah. In: Link PK, Kowallis BJ (eds) Proterozoic to Recent stratigraphy, tectonics, and volcanology, Utah, Nevada, southern Idaho and central Mexico. BYU Geol Stud, vol 42, pp 129–160Google Scholar
  25. Sandberg CA, Morrow JR, Ziegler W (2002) Late Devonian sea-level changes, catastrophic events, and mass extinctions. In: Koeberl C, MacLeod KG (eds) Catastrophic events and mass extinctions: impacts and beyond. Geol Soc Am Spec Paper, vol 356, pp 473–487Google Scholar
  26. Sheffield JW (2011) Reassessing stratigraphic patterns of the Alamo impact deposits using a relational database and GIS analytical tools, Lincoln County, Nevada. Master’s Thesis, Idaho State UniversityGoogle Scholar
  27. Tapanila LM, Ekdale AA (2004) Impact of an impact: benthic recovery immediately following the Late Devonian Alamo Event. Geol Soc Am Abstr Progr 36:313Google Scholar
  28. Taylor WJ, Bartley JM, Martin MW, Geissman JW, Walker JD, Armstrong PA, Fryxell JE (2000) Relations between hinterland and foreland shortening: Sevier orogeny, central North American Cordillera. Tectonics 19:1124–1143CrossRefGoogle Scholar
  29. Thomason C (2010) Recovery of the carbonate platform and fauna in the aftermath of the Late Devonian Alamo Impact, Hiko Hills Range, southeastern Nevada. Master’s Thesis, Idaho State UniversityGoogle Scholar
  30. Warme JE, Kuehner H-C (1998) Anatomy of an anomaly: the Devonian catastrophic Alamo impact breccia of southern Nevada. Int Geol Rev 40:189–216CrossRefGoogle Scholar
  31. Warme JE, Morgan M, Kuehner H-C (2002) Impact-generated carbonate accretionary lapilli in the Late Devonian Alamo Breccia. In: Koeberl C, MacLeod KG (eds) Catastrophic events and mass extinctions. Geol Soc Am Spec Paper, vol 356, pp 489–504Google Scholar
  32. Warme JE, Morrow JR, Sandberg CA (2008) Devonian carbonate platform of eastern Nevada: facies, surfaces, cycles, sequences, reefs, and cataclysmic Alamo Impact Breccia. In: Duebendorfer EM, Smith EI (eds) Field guide to plutons, volcanoes, faults, reefs, dinosaurs, and possible glaciation in selected areas of Arizona, California, and Nevada. Geol Soc Am Field Guide, vol 11, pp 215–247Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Leif Tapanila
    • 1
    • 2
  • Julia R. Steenberg
    • 3
  • Carrie J. Johnson
    • 4
  • Reed A. Myers
    • 5
  1. 1.Department of GeosciencesIdaho State UniversityPocatelloUSA
  2. 2.Division of Earth ScienceIdaho Museum of Natural HistoryPocatelloUSA
  3. 3.Minnesota Geological SurveySt. PaulUSA
  4. 4.Chesapeake Energy CorporationOklahoma CityUSA
  5. 5.Department of Earth and Atmospheric SciencesUniversity of AlbertaEdmontonCanada

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