Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic
The Byrd Glacier discontinuity us a major 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 consits of two-dimensional transects acro...
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ftawi:oai:epic.awi.de:17003 2024-09-15T17:43:19+00:00 Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic Stump, E. Gootee, B. Talarico, F. 2006 application/pdf https://epic.awi.de/id/eprint/17003/ https://epic.awi.de/id/eprint/17003/1/Stu2006d.pdf https://doi.org/10.1007/3-540-32934-X_22 https://hdl.handle.net/10013/epic.26882 https://hdl.handle.net/10013/epic.26882.d001 unknown https://epic.awi.de/id/eprint/17003/1/Stu2006d.pdf https://hdl.handle.net/10013/epic.26882.d001 Stump, E. , Gootee, B. and Talarico, F. (2006) Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic , In: Fütterer, D K, Damaske, D, Kleinschmidt, G, Miller, H & Tessensohn, F (eds.), Antarctica: contributions to global earth sciences, Springer, Berlin, Heidelberg, New York . doi:10.1007/3-540-32934-X_22 <https://doi.org/10.1007/3-540-32934-X_22> , hdl:10013/epic.26882 EPIC3In: Fütterer, D K, Damaske, D, Kleinschmidt, G, Miller, H & Tessensohn, F (eds.), Antarctica: contributions to global earth sciences, Springer, Berlin, Heidelberg, New York, pp. 181-190 Inbook peerRev 2006 ftawi https://doi.org/10.1007/3-540-32934-X_22 2024-06-24T03:59:51Z The Byrd Glacier discontinuity us a major 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 consits of two-dimensional transects across the belt, but do not adress the major longitudinal contrast at Byrd Glacier. This paper presents a tectonic model centering on the Byrd Glacier discontinuity. Rifting in the Neoproterozoic producede a crustal promontory in the craton margin to the north of Byrd Glacier. Oblique convergence of the terrane (Beardmore microcontinent) during the latest Neroproterozoic and Early Cambrian was accompanied by subduction along the craton margin of East Antarctica. New data presented herein in the 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, subduction stepped out, and 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. Book Part Antarc* Antarctica Byrd Glacier East Antarctica Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) 181 190 Berlin/Heidelberg |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The Byrd Glacier discontinuity us a major 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 consits of two-dimensional transects across the belt, but do not adress the major longitudinal contrast at Byrd Glacier. This paper presents a tectonic model centering on the Byrd Glacier discontinuity. Rifting in the Neoproterozoic producede a crustal promontory in the craton margin to the north of Byrd Glacier. Oblique convergence of the terrane (Beardmore microcontinent) during the latest Neroproterozoic and Early Cambrian was accompanied by subduction along the craton margin of East Antarctica. New data presented herein in the 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, subduction stepped out, and 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. |
format |
Book Part |
author |
Stump, E. Gootee, B. Talarico, F. |
spellingShingle |
Stump, E. Gootee, B. Talarico, F. Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic |
author_facet |
Stump, E. Gootee, B. Talarico, F. |
author_sort |
Stump, E. |
title |
Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic |
title_short |
Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic |
title_full |
Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic |
title_fullStr |
Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic |
title_full_unstemmed |
Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic |
title_sort |
tectonic model for development of the byrd glacier discontinuity and surrounding regions of the transantarctic mountains during neoproterozoic-early paleozoic |
publishDate |
2006 |
url |
https://epic.awi.de/id/eprint/17003/ https://epic.awi.de/id/eprint/17003/1/Stu2006d.pdf https://doi.org/10.1007/3-540-32934-X_22 https://hdl.handle.net/10013/epic.26882 https://hdl.handle.net/10013/epic.26882.d001 |
genre |
Antarc* Antarctica Byrd Glacier East Antarctica |
genre_facet |
Antarc* Antarctica Byrd Glacier East Antarctica |
op_source |
EPIC3In: Fütterer, D K, Damaske, D, Kleinschmidt, G, Miller, H & Tessensohn, F (eds.), Antarctica: contributions to global earth sciences, Springer, Berlin, Heidelberg, New York, pp. 181-190 |
op_relation |
https://epic.awi.de/id/eprint/17003/1/Stu2006d.pdf https://hdl.handle.net/10013/epic.26882.d001 Stump, E. , Gootee, B. and Talarico, F. (2006) Tectonic model for development of the Byrd Glacier discontinuity and surrounding regions of the Transantarctic Mountains during Neoproterozoic-Early Paleozoic , In: Fütterer, D K, Damaske, D, Kleinschmidt, G, Miller, H & Tessensohn, F (eds.), Antarctica: contributions to global earth sciences, Springer, Berlin, Heidelberg, New York . doi:10.1007/3-540-32934-X_22 <https://doi.org/10.1007/3-540-32934-X_22> , hdl:10013/epic.26882 |
op_doi |
https://doi.org/10.1007/3-540-32934-X_22 |
container_start_page |
181 |
op_container_end_page |
190 |
op_publisher_place |
Berlin/Heidelberg |
_version_ |
1810490259812646912 |