Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica
South of Byrd Glacier, central Transantarctic Mountains, Antarctica, Lower Cambrian Shackleton Limestone (Byrd Group) is divided into four informal members. The transition from Shackleton carbonates to clastics of Starshot Formation is conformable, with alternating units of limestone and argillite,...
Main Authors: | , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Sir Publishing
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/1885/80319 |
id |
ftanucanberra:oai:digitalcollections.anu.edu.au:1885/80319 |
---|---|
record_format |
openpolar |
spelling |
ftanucanberra:oai:digitalcollections.anu.edu.au:1885/80319 2023-05-15T13:56:14+02:00 Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica Stump, E Gootee, B. Talarico, F Van Schmus, W.R. Brand, P K Foland, Kenneth A Fanning, Christopher 2015-12-13T22:48:58Z http://hdl.handle.net/1885/80319 unknown Sir Publishing 0028-8306 http://hdl.handle.net/1885/80319 New Zealand Journal of Geology and Geophysics Keywords: Cambrian limestone stratigraphic correlation Antarctica Transantarctic Mountains Byrd Group Cambrian Ross Orogen Selborne Group Shackleton Limestone Stratigraphy Transantarctic Mountains Journal article 2015 ftanucanberra 2015-12-21T23:52:36Z South of Byrd Glacier, central Transantarctic Mountains, Antarctica, Lower Cambrian Shackleton Limestone (Byrd Group) is divided into four informal members. The transition from Shackleton carbonates to clastics of Starshot Formation is conformable, with alternating units of limestone and argillite, and a thick succession of pillow basalt. Douglas Conglomerate is interbedded with and overlies Starshot Formation, and overlies folded Shackleton Limestone unconformably. Lower amphibolite-grade Selborne Group is composed of Madison Marble and Contortion Schist. The contact between the two formations is interbedded marble and schist, and includes metabasalt. We correlate Byrd Group with Selborne Group, Shackleton Limestone with Madison Marble, and Starshot Formation and Douglas Conglomerate with Contortion Schist. These correlations and the lack of equivalent lithologies to the north of Byrd Glacier imply that Byrd Glacier is the northern boundary of the Byrd depositional basin, and reinforces the notion that it marks a major tectonic discontinuity crossing the Ross Orogen. Article in Journal/Newspaper Antarc* Antarctica Byrd Glacier Australian National University: ANU Digital Collections Byrd Byrd Glacier ENVELOPE(160.333,160.333,-80.250,-80.250) Selborne ENVELOPE(160.750,160.750,-80.383,-80.383) Shackleton Transantarctic Mountains |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Cambrian limestone stratigraphic correlation Antarctica Transantarctic Mountains Byrd Group Cambrian Ross Orogen Selborne Group Shackleton Limestone Stratigraphy Transantarctic Mountains |
spellingShingle |
Keywords: Cambrian limestone stratigraphic correlation Antarctica Transantarctic Mountains Byrd Group Cambrian Ross Orogen Selborne Group Shackleton Limestone Stratigraphy Transantarctic Mountains Stump, E Gootee, B. Talarico, F Van Schmus, W.R. Brand, P K Foland, Kenneth A Fanning, Christopher Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica |
topic_facet |
Keywords: Cambrian limestone stratigraphic correlation Antarctica Transantarctic Mountains Byrd Group Cambrian Ross Orogen Selborne Group Shackleton Limestone Stratigraphy Transantarctic Mountains |
description |
South of Byrd Glacier, central Transantarctic Mountains, Antarctica, Lower Cambrian Shackleton Limestone (Byrd Group) is divided into four informal members. The transition from Shackleton carbonates to clastics of Starshot Formation is conformable, with alternating units of limestone and argillite, and a thick succession of pillow basalt. Douglas Conglomerate is interbedded with and overlies Starshot Formation, and overlies folded Shackleton Limestone unconformably. Lower amphibolite-grade Selborne Group is composed of Madison Marble and Contortion Schist. The contact between the two formations is interbedded marble and schist, and includes metabasalt. We correlate Byrd Group with Selborne Group, Shackleton Limestone with Madison Marble, and Starshot Formation and Douglas Conglomerate with Contortion Schist. These correlations and the lack of equivalent lithologies to the north of Byrd Glacier imply that Byrd Glacier is the northern boundary of the Byrd depositional basin, and reinforces the notion that it marks a major tectonic discontinuity crossing the Ross Orogen. |
format |
Article in Journal/Newspaper |
author |
Stump, E Gootee, B. Talarico, F Van Schmus, W.R. Brand, P K Foland, Kenneth A Fanning, Christopher |
author_facet |
Stump, E Gootee, B. Talarico, F Van Schmus, W.R. Brand, P K Foland, Kenneth A Fanning, Christopher |
author_sort |
Stump, E |
title |
Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica |
title_short |
Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica |
title_full |
Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica |
title_fullStr |
Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica |
title_full_unstemmed |
Correlation of Byrd and Selborne Groups, with implications for the Byrd Glacier discontinuity, central Transantarctic Mountains, Antarctica |
title_sort |
correlation of byrd and selborne groups, with implications for the byrd glacier discontinuity, central transantarctic mountains, antarctica |
publisher |
Sir Publishing |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/80319 |
long_lat |
ENVELOPE(160.333,160.333,-80.250,-80.250) ENVELOPE(160.750,160.750,-80.383,-80.383) |
geographic |
Byrd Byrd Glacier Selborne Shackleton Transantarctic Mountains |
geographic_facet |
Byrd Byrd Glacier Selborne Shackleton Transantarctic Mountains |
genre |
Antarc* Antarctica Byrd Glacier |
genre_facet |
Antarc* Antarctica Byrd Glacier |
op_source |
New Zealand Journal of Geology and Geophysics |
op_relation |
0028-8306 http://hdl.handle.net/1885/80319 |
_version_ |
1766263597301760000 |