Antarctica pp 181-190 | Cite as

Tectonic Model for Development of the Byrd Glacier Discontinuity and Surrounding Regions of the Transantarctic Mountains during the Neoproterozoic — Early Paleozoic

  • Edmund Stump
  • Brian Gootee
  • Franco Talarico


The Byrd Glacier discontinuity is a major tectonic boundary crossing the Ross Orogen, with crystalline rocks to the north and primarily sedimentary rocks to the south. Most models for the tectonic development of the Ross Orogen in the central Transantarctic Mountains consist of two-dimensional transects across the belt, but do not address the major longitudinal contrast at Byrd Glacier. This paper presents a tectonic model centering on the Byrd Glacier discontinuity. Rifting in the Neoproterozoic produced a crustal promontory in the craton margin to the north of Byrd Glacier. Oblique convergence of a terrane (Beardmore microcontinent) during the latest Neoproterozoic and Early Cambrian was accompanied by subduction along the craton margin of East Antarctica. New data presented herein in support of this hypothesis are U-Pb dates of 545.7 ±6.8 Ma and 531.0 ±7.5 Ma on plutonic rocks from the Britannia Range, directly north of Byrd Glacier. After docking of the terrane, subduction stepped out, and Byrd Group was deposited during the Atdabanian-Botomian across the inner margin of the terrane. Beginning in the upper Botomian, reactivation of the sutured boundaries of the terrane resulted in an outpouring of clastic sediment and folding and faulting of the Byrd Group.


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  1. Allibone AH, Wysoczanski R (2002) Initiation of magmatism during the Cambrian-Ordovician Ross orogeny in southern Victoria Land, Antarctica. Geol Soc Amer Bull 114:1007–1018CrossRefGoogle Scholar
  2. Allibone AH, Cox SC, Graham IJ, Smillie RW, Johnstone RD, Ellery SG, Palmer K (1993a) Granitoids of the Dry Valleys area, southern Victoria Land, Antarctica: plutons, field relationships, and isotopic dating. New Zealand J Geol Geophys 36:281–297Google Scholar
  3. Allibone AH, Cox, SC, Smillie RW (1993b) Granitoids of the Dry Valleys area, southern Victoria Land: geochemistry and evolution along the early Paleozoic Antarctic craton margin. New Zealand J Geol Geophys 36:299–316Google Scholar
  4. Anonymous (1969–1970) Geologic Maps of Antarctica. American Geographical Society, New YorkGoogle Scholar
  5. Borg SG (1983) Petrology and geochemistry of the Queen Maud Batholith, central Transantarctic Mountains, with implications for the Ross Orogeny. In: Oliver RL, James PR, Jago JB (eds) Antarctic earth science. Austral Acad Sci, Canberra, pp 165–169Google Scholar
  6. Borg SG, DePaolo DJ (1991) A tectonic model of the Antarctic Gondwana margin with implications for southeastern Australia: isotopic and geochemical evidence. Tectonophysics 196:339–358CrossRefGoogle Scholar
  7. Borg SG, DePaolo DJ (1994) Laurentia, Australia, and Antarctica as a Late Proterozoic supercontinent: constraints from isotopic mapping. Geology 22:307–310CrossRefGoogle Scholar
  8. Borg SG, Stump E, Chappell BW, McCulloch MT, Wyborn D, Armstrong RL, Holloway JR (1987) Granitoids of northern Victoria Land, Antarctica: implications of chemical and isotopic variations to regional crustal structure and tectonics. Amer J Sci 287:127–169CrossRefGoogle Scholar
  9. Borg SG, DePaolo DJ, Wendlandt ED, Drake TG (1989) Studies of granites and metamorphic rocks, Byrd Glacier area. Antarct J US 24:19–21Google Scholar
  10. Borg SG, DePaolo DJ, Smith BM (1990) Isotopic structure and tectonics of the central Transantarctic Mountains. J Geophys Res 95:6647–6667CrossRefGoogle Scholar
  11. Bowring SA, Erwin DH (1998) A new look at evolutionary rates in deep time: uniting paleontology and high-precision geochronology. GSA Today 8:1–8Google Scholar
  12. Cook YA, Craw D (2001) Amalgamation of disparate crustal fragments in the Walcott Bay — Foster Glacier area, South Victoria Land, Antarctica. New Zealand J Geol Geophys 44:403–416Google Scholar
  13. Cook YA, Craw D (2002) Neoproterozoic structural slices in the Ross orogen, Skelton Glacier area, south Victoria Land. New Zealand J Geol Geophys 45:133–143Google Scholar
  14. Cooper AF, Worley BA, Armstrong RA, Price RC (1997) Synorogenic alkaline and carbonatitic magmatism in the Transantarctic Mountains of South Victoria Land, Antarctica. In: Ricci CA (ed) The Antarctic region: geological evolution and processes. Terra Antartica Publication, Siena, pp 245–252Google Scholar
  15. Cox SC, Parkinson DL, Allibone AH, Cooper AF (2000) Isotopic character of Cambro-Ordovician plutonism, southern Victoria Land, Antarctica. New Zealand J Geol Geophys 434:501–520Google Scholar
  16. Davidek K, Landing E, Bowring SA, Westrop SR, Rushton AWA, Fortey RA, Adrian JM (1998) New uppermost Cambrian U-Pb date from Avalonian Wales and age of the Cambrian-Ordovician boundary. Geol Mag 135:305–309CrossRefGoogle Scholar
  17. Debrenne F, Kruse PD (1986) Shackleton Limestone archaeocyaths. Alcheringa 10:235–278CrossRefGoogle Scholar
  18. Ducea M (2001) The California arc: thick granitic batholiths, eclogitic residues, lithospheric-scale thrusting, and magmatic flare-ups. GSA Today 11:4–10CrossRefGoogle Scholar
  19. Encarnación JP, Grunow AM (1996) Changing magmatic and tectonic styles along the paleo-Pacific margin of Gondwana and the onset of early Paleozoic magmatism in Antarctica. Tectonics 15:1325–1341CrossRefGoogle Scholar
  20. Encarnación J, Rowell AJ, Grunow AM (1999) A U-Pb age for the Cambrian Taylor Formation, Antarctica: implications for the Cambrian time scale. J Geol 107:497–504CrossRefGoogle Scholar
  21. Findlay RH, Skinner DNB, Craw D (1984) Lithostratigraphy and structure of the Koettlitz Group, McMurdo Sound, Antarctica. New Zealand J Geol Geophys 27:513–536Google Scholar
  22. Goodge JW (1997) Latest Neoproterozoic basin inversion of the Beardmore Group, central Transantarctic Mountains, Antarctica. Tectonics 16:682–701CrossRefGoogle Scholar
  23. Goodge JW, Dallmeyer RD (1996) Contrasting thermal evolution within the Ross Orogen, Antarctica Evidence from mineral 40Ar/39Ar Ages. J Geol 104:435–458CrossRefGoogle Scholar
  24. Goodge JW, Fanning CM (1999) 2.5 b.y. of punctuated Earth history as recorded in a single rock. Geology 27:1007–1010CrossRefGoogle Scholar
  25. Goodge JW, Borg SG, Smith BK, Bennett VC (1991) Tectonic significance of Proterozoic ductile shortening and translation along the Antarctic margin of Gondwana. Earth Planet Sci Letters 102:58–70CrossRefGoogle Scholar
  26. Goodge JW, Hansen VL, Peacock SM, Smith BK, Walker NW (1993a) Kinematic evolution of the Miller Range shear zone, central Transantarctic Mountains, Antarctica, and implications for Neoproterozoic to early Paleozoic tectonics of the East Antarctic margin of Gondwana. Tectonics 12:1460–1478Google Scholar
  27. Goodge JW, Walker NW, Hansen VL (1993b) Neoproterozoic-Cambrian basement-involved orogenesis within the Antarctic margin of Gondwana. Geol 21:37–40CrossRefGoogle Scholar
  28. Goodge JW, Fanning CM, Bennett VC (2001) U-Pb evidence of ∼1.7 Ga crustal tectonism during the Nimrod Orogeny in the Transantarctic Mountains, Antarctica: implications for Proterozoic plate reconstructions. Precambrian Res 112:261–288CrossRefGoogle Scholar
  29. Goodge JW, Myrow P, Williams IS, Bowring SA (2002) Age and provenance of the Beardmore Group, Antarctica: constraints on Rodinia supercontinent breakup. J Geol 110:393–406CrossRefGoogle Scholar
  30. Gootee B (2002) Geology of the Cambrian Byrd Group, Byrd Glacier area, Antarctica. MSc Thesis, Arizona State University, TempeGoogle Scholar
  31. Gootee B, Stump E (2006) Depositional environments of the Byrd Group, Byrd Glacier area: a Cambrian record of sedimentation, tectonism, and magmatism. In: Fütterer DK, Damaske D, Kleinschmidt G, Miller H, Tessensohn F (eds) Antarctica — Contributions to global earth sciences. Springer, Berlin Heidelberg New York, pp 191–194Google Scholar
  32. Grindley GW (1972) Polyphase deformation of the Precambrian Nimrod Group, Central Transantarctic Mountains. In: Adie RJ (ed) Antarctic geology and geophysics. Universitetsforlaget, Oslo, pp 313–318Google Scholar
  33. Grindley GW, Laird MG (1969) Geology of the Shackleton Coast. Antarctic Map Folio Series Folio 12, XIVGoogle Scholar
  34. Grindley GW, McDougall I (1969) Age and correlation of the Nimrod group and other Precambrian rock units in the Central Transantarctic Mountains, Antarctica. New Zealand J Geol Geophys 12:391–411Google Scholar
  35. Grindley GW, Warren G (1964) Stratigraphic nomenclature and correlation in the western Ross sea region. In: Adie RJ (ed) Antarctic Geology. North-Holland, Amsterdam, pp 314–333Google Scholar
  36. Grindley GW, McGregor VR, Walcott RI (1964) Outline of the geology of the Nimrod-Beardmore-Axel Heiberg glaciers region, Ross Dependency. In: Adie RJ (ed) Antarctic Geology. North-Holland, Amsterdam, pp 206–219Google Scholar
  37. Gunn BM, Walcott RI (1962) The geology of the Mt Markham region, Ross Dependency, Antarctica. New Zealand J Geol Geophys 5:407–426Google Scholar
  38. Gunn BM, Warren G (1962) Geology of Victoria Land between the Mawson and Mulock glaciers, Antarctica. New Zealand Geol Surv Bull 7:1–157Google Scholar
  39. Gunner JD, Faure G (1972) Rubidium-strontium geochronology of the Nimrod Group, central Transantarctic Mountains. In: Adie RJ (ed) Antarctic geology and geophysics. Universitetsforlaget, Oslo, pp 305–311Google Scholar
  40. Hall CE, Cooper AF, Parkinson DL (1995) Early Cambrian carbonatite in Antarctica. J Geol Soc London 152:721–728Google Scholar
  41. Hill D (1964) Archaeocyatha from the Shackleton limestone of the Ross system, Nimrod glacier area, Antarctica. Trans Royal Soc New Zealand Geol 2:137–146Google Scholar
  42. Laird MG (1963) Geomorphology and stratigraphy of the Nimrod glacier-Beaumont bay region, southern Victoria Land, Antarctica. New Zealand J Geol Geophys 6:465–484Google Scholar
  43. Laird MG, Mansergh GD, Chappell JMA (1971) Geology of the central Nimrod Glacier area, Antarctica. New Zealand J Geol Geophys 14:427–468Google Scholar
  44. Landing E, Bowring SA, Davidek KL, Westrop SR, Geyer G, Heldmaier W (1998) Duration of the Early Cambrian: U-Pb ages of volcanic ashes from Avalon and Gondwana. Canadian J Earth Sci 35:329–338CrossRefGoogle Scholar
  45. Ludwig KJ (2001) Isoplot/Ex (rev. 2.49). Berkeley Geochronology Center Spec Publ 1a:1–56Google Scholar
  46. Mellish SD, Cooper AF, Walker NW (2002) Panorama Pluton: a composite gabbro-monzodiorite early Ross Orogeny intrusion in southern Victoria Land, Antarctica. In: Gamble JA, Skinner DNB, Henrys S (eds) Antarctica at the close of a millennium. Royal Soc New Zealand Bull 35, Wellington, pp 129–141Google Scholar
  47. Moores EM (1991) Southwest U.S.-East Antarctic (SWEAT) connection: a hypothesis. Geology 19:425–428CrossRefGoogle Scholar
  48. Myrow PM, Pope MC, Goodge JW, Fischer W, Palmer AR (2002a) Depositional history of pre-Devonian strata and timing of Ross orogenic tectonism in the central Transantarctic Mountains, Antarctica. Geol Soc Amer Bull 114:1070–1088Google Scholar
  49. Myrow PM, Fischer W, Goodge JW (2002b) Wave-modified turbidites: Combined-flow shoreline and shelf deposits, Cambrian, Antarctica. J Sed Res 72:641–656Google Scholar
  50. Palmer AR, Rowell AJ (1995) Early Cambrian trilobites from the Shackleton Limestone of the central Transantarctic Mountains. Paleontol Soc Mem 45:1–28Google Scholar
  51. Read SE, Cooper AF, Walker NW (2002) Geochemistry and U-Pb geochronology of the Neoproterozoic-Cambrian Koettlitz Glacier alkaline province, Royal Society Range, Transantarctic Mountains, Antarctica. In: Gamble JA, Skinner DNB, Henrys S (eds) Antarctica at the close of a millennium. Royal Soc New Zealand Bull 35, Wellington, pp 143–151Google Scholar
  52. Rees MN, Pratt BR, Rowell AJ (1989) Early Cambrian reefs, reef complexes, and associated lithofacies of the Shackleton Limestone, Transantarctic Mountains. Sedimentology 36:341–361Google Scholar
  53. Rowell AJ, Rees MN, Cooper RA, Pratt BR (1988) Early Paleozoic history of the central Transantarctic Mountains: evidence from the Holyoake Range, Antarctica. New Zealand J Geol Geophys 31:397–404Google Scholar
  54. Rowell AJ, Rees MN, Duebendorfer EM, Wallin ET, Van Schmus WR, Smith EI (1993) An active Neoproterozoic margin: evidence from the Skelton Glacier area, Transantarctic Mountains. J Geol Soc London 150:677–682Google Scholar
  55. Simpson AL, Cooper AF (2002) Geochemistry of the Darwin Glacier region granitoids, southern Victoria Land. Antarctic Sci 14:425–426CrossRefGoogle Scholar
  56. Skinner DNB (1964) A summary of the geology between Byrd and Starshot Glaciers, south Victoria Land. In: Adie RJ (ed) Antarctic geology. North-Holland, Amsterdam, pp 284–292Google Scholar
  57. Skinner DNB (1982) Stratigraphy and structure of low-grade meta-sedimentary rocks of the Skelton Group, southern Victoria Land: does Teall Greywacke really exist? In: Craddock C (ed) Antarctic geoscience. University of Wisconsin Press, Madison, pp 555–563Google Scholar
  58. Stacey JS, Kramers JD (1975) Approximation of terrestrial lead isotope evolution by a two-stage model. Earth Planet Sci Letters 26:207–221CrossRefGoogle Scholar
  59. Stump E (1992) The Ross Orogen of the Transantarctic Mountains in light of the Laurentia-Gondwana split. GSA Today 2:25–31Google Scholar
  60. Stump E, Smit JH, Self S (1986) Timing of events during the late Proterozoic Beardmore Orogeny, Antarctica: geological evidence from the La Gorce Mountains. Geol Soc Amer Bull 97:953–965CrossRefGoogle Scholar
  61. Stump E, Edgerton DG, Korsch RJ (2002a) Geological relationships at Cotton Plateau, Nimrod Glacier area, bearing on the tectonic development of the Ross orogen, Transantarctic Mountains, Antarctica. Terra Antartica 9:3–18Google Scholar
  62. Stump E, Foland KA, Van Schmus WR, Brand PK, Dewane TJ, Gootee BF, Talarico F (2002b) Geochronology of deformation, intrusion, and cooling during the Ross orogeny, Byrd Glacier area, Antarctica. Geol Soc Amer, Abstracts Progr 34:560–561Google Scholar
  63. Stump E, Gootee BF, Talarico F, Van Schmus WR, Brand PK, Foland KA, Fanning CM (2004) Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains. New Zealand J Geol Geophys 47:157–171Google Scholar
  64. Tucker RD, McKerrow WS (1995) Early Paleozoic chronology: a review in light of new U-Pb zircon ages from Newfoundland and Britain. Canadian J Earth Sci 32:368–379Google Scholar
  65. Van Schmus WR, McKenna LW, Gonzales DA, Fetter AH, Rowell AJ (1997) U-Pb geochronology of parts of the Pensacola, Thiel, and Queen Maud Mountains, Antarctica. In: Ricci CA (ed) The Antarctic region: geological evolution and processes. Terra Antartica Publication, Siena, pp 187–200Google Scholar
  66. Vogel MB, Wooden JL, Stump E, McWilliams MO (2001) Detrital zircon provenance of Neoproterozoic to Cambrian successions: resolving continental configurations. Gondwana Res 4:809CrossRefGoogle Scholar
  67. Wareham CD, Stump E, Storey BC, Millar IL, Riley TR (2001) Petrogenesis of the Cambrian Liv Group, a bimodal volcanic rock suite from the Ross orogen, Transantarctic Mountains. Geol Soc Amer Bull 113:360–372CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Edmund Stump
    • 1
  • Brian Gootee
    • 1
  • Franco Talarico
    • 2
  1. 1.Department of Geological SciencesArizona State UniversityTempeUSA
  2. 2.Dipartimento di Scienze della TerraUniversità di SienaSienaItaly

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