Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica
During the 2007 - 2008 austral spring season, the ANDRILL Southern McMurdo Sound Project recovered a core 1138 metres long (AND-2A) from a location in the southern McMurdo Sound near the Dailey Islands. This core contains a range of lithologies, including various types of terrigenous clastic diamict...
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ftmontclairstuni:oai:digitalcommons.montclair.edu:earth-environ-studies-facpubs-1527 2023-07-23T04:15:52+02:00 Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica Fielding, Christopher R. Atkins, C. B. Bassett, K. N. Browne, G. H. Dunbar, G. B. Field, B. D. Frank, Tracy Dagmar Krissek, L. A. Panter, Kurt S. Passchier, Sandra Pekar, Stephen F. Sandroni, Sonia Talarico, F. 2008-01-01T08:00:00Z https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/528 unknown Montclair State University Digital Commons https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/528 Department of Earth and Environmental Studies Faculty Scholarship and Creative Works text 2008 ftmontclairstuni 2023-07-03T21:48:55Z During the 2007 - 2008 austral spring season, the ANDRILL Southern McMurdo Sound Project recovered a core 1138 metres long (AND-2A) from a location in the southern McMurdo Sound near the Dailey Islands. This core contains a range of lithologies, including various types of terrigenous clastic diamictite, conglomerate and breccia, sandstone and mudrocks, volcanic lava, pyroclastic and reworked volcanic sedimentary rocks, and diatomite. The succession is divided into fourteen lithostratigraphic units (LSUs), two of which (LSUs 1 and 8) are further subdivided into three and four sub-units, respectively, based on changes in abundance of lithologies. Thirteen lithofacies are recognized, ranging from diatomite and bioturbated, fossil-bearing mudrocks (representing most ice-distal environments) through interlaminated sandstone-mudrock faciès and sandstone with varying dispersed gravel components, to diamictite and conglomerate (representing most ice-proximal environments), and also lava, volcanic breccia and volcanic sedimentary rocks representing extrusion, fragmentation, fallout and reworking of material from basaltic volcanic activity. Three distinct types Cmotifs') of vertical fades stacking patterns are recognized, recording glacial advance-retreat-advance cycles with varying degrees of faciès preservation. Carbonate, pyrite and zeolites are the principal secondary mineral phases in the core. The pyrite overprint is particularly prominent in the lower half of the core, where it typically obscures stratification and sediment texture. Studies of modern aeolian sediment deposition onto McMurdo Sound sea-ice reveal that between 7600 and 24 000 kg km2 of terrigenous clastic material is being stored on the sea-ice in this region. Text Antarc* Antarctica Dailey Islands McMurdo Sound Sea ice Montclair State University Digital Commons Austral McMurdo Sound Dailey Islands ENVELOPE(165.100,165.100,-77.883,-77.883) |
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Open Polar |
collection |
Montclair State University Digital Commons |
op_collection_id |
ftmontclairstuni |
language |
unknown |
description |
During the 2007 - 2008 austral spring season, the ANDRILL Southern McMurdo Sound Project recovered a core 1138 metres long (AND-2A) from a location in the southern McMurdo Sound near the Dailey Islands. This core contains a range of lithologies, including various types of terrigenous clastic diamictite, conglomerate and breccia, sandstone and mudrocks, volcanic lava, pyroclastic and reworked volcanic sedimentary rocks, and diatomite. The succession is divided into fourteen lithostratigraphic units (LSUs), two of which (LSUs 1 and 8) are further subdivided into three and four sub-units, respectively, based on changes in abundance of lithologies. Thirteen lithofacies are recognized, ranging from diatomite and bioturbated, fossil-bearing mudrocks (representing most ice-distal environments) through interlaminated sandstone-mudrock faciès and sandstone with varying dispersed gravel components, to diamictite and conglomerate (representing most ice-proximal environments), and also lava, volcanic breccia and volcanic sedimentary rocks representing extrusion, fragmentation, fallout and reworking of material from basaltic volcanic activity. Three distinct types Cmotifs') of vertical fades stacking patterns are recognized, recording glacial advance-retreat-advance cycles with varying degrees of faciès preservation. Carbonate, pyrite and zeolites are the principal secondary mineral phases in the core. The pyrite overprint is particularly prominent in the lower half of the core, where it typically obscures stratification and sediment texture. Studies of modern aeolian sediment deposition onto McMurdo Sound sea-ice reveal that between 7600 and 24 000 kg km2 of terrigenous clastic material is being stored on the sea-ice in this region. |
format |
Text |
author |
Fielding, Christopher R. Atkins, C. B. Bassett, K. N. Browne, G. H. Dunbar, G. B. Field, B. D. Frank, Tracy Dagmar Krissek, L. A. Panter, Kurt S. Passchier, Sandra Pekar, Stephen F. Sandroni, Sonia Talarico, F. |
spellingShingle |
Fielding, Christopher R. Atkins, C. B. Bassett, K. N. Browne, G. H. Dunbar, G. B. Field, B. D. Frank, Tracy Dagmar Krissek, L. A. Panter, Kurt S. Passchier, Sandra Pekar, Stephen F. Sandroni, Sonia Talarico, F. Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica |
author_facet |
Fielding, Christopher R. Atkins, C. B. Bassett, K. N. Browne, G. H. Dunbar, G. B. Field, B. D. Frank, Tracy Dagmar Krissek, L. A. Panter, Kurt S. Passchier, Sandra Pekar, Stephen F. Sandroni, Sonia Talarico, F. |
author_sort |
Fielding, Christopher R. |
title |
Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica |
title_short |
Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica |
title_full |
Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica |
title_fullStr |
Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica |
title_full_unstemmed |
Sedimentology and Stratigraphy of the AND-2A Core, ANDRILL Southern Mcmurdo Sound Project, Antarctica |
title_sort |
sedimentology and stratigraphy of the and-2a core, andrill southern mcmurdo sound project, antarctica |
publisher |
Montclair State University Digital Commons |
publishDate |
2008 |
url |
https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/528 |
long_lat |
ENVELOPE(165.100,165.100,-77.883,-77.883) |
geographic |
Austral McMurdo Sound Dailey Islands |
geographic_facet |
Austral McMurdo Sound Dailey Islands |
genre |
Antarc* Antarctica Dailey Islands McMurdo Sound Sea ice |
genre_facet |
Antarc* Antarctica Dailey Islands McMurdo Sound Sea ice |
op_source |
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works |
op_relation |
https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/528 |
_version_ |
1772177028052680704 |