Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record
Significant down-core modal and compositional variations are described for granule- to cobble-sized clasts in the Early Pliocene to Middle/Late Miocene sedimentary cycles of the AND-1B drill core at the NW edge of the Ross Ice Shelf (McMurdo Sound). Long-term shifts in compositional patterns outline...
Published in: | Global and Planetary Change |
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Online Access: | http://hdl.handle.net/11365/23816 https://doi.org/10.1016/j.gloplacha.2009.04.007 |
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ftunivsiena:oai:usiena-air.unisi.it:11365/23816 2024-02-11T09:57:16+01:00 Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record TALARICO, F. M. SANDRONI, S. Talarico, F. M. Sandroni, S. 2009 STAMPA http://hdl.handle.net/11365/23816 https://doi.org/10.1016/j.gloplacha.2009.04.007 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000272789700004 volume:69 issue:3 firstpage:103 lastpage:123 numberofpages:21 journal:GLOBAL AND PLANETARY CHANGE http://hdl.handle.net/11365/23816 doi:10.1016/j.gloplacha.2009.04.007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-71849119191 info:eu-repo/semantics/closedAccess clast East Antarctic Ice Sheet Miocene Pliocene provenance West Antarctic Ice Sheet info:eu-repo/semantics/article 2009 ftunivsiena https://doi.org/10.1016/j.gloplacha.2009.04.007 2024-01-23T23:17:59Z Significant down-core modal and compositional variations are described for granule- to cobble-sized clasts in the Early Pliocene to Middle/Late Miocene sedimentary cycles of the AND-1B drill core at the NW edge of the Ross Ice Shelf (McMurdo Sound). Long-term shifts in compositional patterns outline an evolving provenance which is interpreted as reflecting the combined effects and complex interactions among variations in ice volume, ice flow patterns and paleogeographic changes linked to the local tectonic and volcanic activity. High-frequency variations and the petrological features of the basement clast fraction provide direct information about the potential source regions during both glacial maxima and minima. Provenance of the more distal material is identified in the region between Ross Island and the Skelton-Mulock glacier area (South Victoria Land) (Plio-Late Miocene section) and in the Darwin Glacier catchment (Miocene section). The provenance shifts can be discussed for their implications on ice dynamic models for the glacial evolution recorded in the western Ross Embayment. Reconstructed ice flow directions are consistent with the glaciological models for the Last Glacial Maximum, and the provenance data corroborate the contributions of both the East and West Antarctic Ice Sheets in influencing the modifications of the ice flow pattern of grounded ice in the western Ross Embayment in Miocene to Pleistocene time. © 2009 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Darwin Glacier Ice Sheet Ice Shelf McMurdo Sound Mulock Glacier Ross Ice Shelf Ross Island Victoria Land Università degli Studi di Siena: USiena air Antarctic The Antarctic Victoria Land West Antarctic Ice Sheet McMurdo Sound East Antarctic Ice Sheet Ross Island Ross Ice Shelf Darwin Glacier ENVELOPE(159.000,159.000,-79.883,-79.883) Mulock Glacier ENVELOPE(160.000,160.000,-79.000,-79.000) Global and Planetary Change 69 3 103 123 |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
clast East Antarctic Ice Sheet Miocene Pliocene provenance West Antarctic Ice Sheet |
spellingShingle |
clast East Antarctic Ice Sheet Miocene Pliocene provenance West Antarctic Ice Sheet TALARICO, F. M. SANDRONI, S. Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record |
topic_facet |
clast East Antarctic Ice Sheet Miocene Pliocene provenance West Antarctic Ice Sheet |
description |
Significant down-core modal and compositional variations are described for granule- to cobble-sized clasts in the Early Pliocene to Middle/Late Miocene sedimentary cycles of the AND-1B drill core at the NW edge of the Ross Ice Shelf (McMurdo Sound). Long-term shifts in compositional patterns outline an evolving provenance which is interpreted as reflecting the combined effects and complex interactions among variations in ice volume, ice flow patterns and paleogeographic changes linked to the local tectonic and volcanic activity. High-frequency variations and the petrological features of the basement clast fraction provide direct information about the potential source regions during both glacial maxima and minima. Provenance of the more distal material is identified in the region between Ross Island and the Skelton-Mulock glacier area (South Victoria Land) (Plio-Late Miocene section) and in the Darwin Glacier catchment (Miocene section). The provenance shifts can be discussed for their implications on ice dynamic models for the glacial evolution recorded in the western Ross Embayment. Reconstructed ice flow directions are consistent with the glaciological models for the Last Glacial Maximum, and the provenance data corroborate the contributions of both the East and West Antarctic Ice Sheets in influencing the modifications of the ice flow pattern of grounded ice in the western Ross Embayment in Miocene to Pleistocene time. © 2009 Elsevier B.V. All rights reserved. |
author2 |
Talarico, F. M. Sandroni, S. |
format |
Article in Journal/Newspaper |
author |
TALARICO, F. M. SANDRONI, S. |
author_facet |
TALARICO, F. M. SANDRONI, S. |
author_sort |
TALARICO, F. M. |
title |
Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record |
title_short |
Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record |
title_full |
Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record |
title_fullStr |
Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record |
title_full_unstemmed |
Provenance signatures of the Antarctic Ice Sheets in the Ross Embayment during the LateMiocene to Early Pliocene: the ANDRILL AND-1B core record |
title_sort |
provenance signatures of the antarctic ice sheets in the ross embayment during the latemiocene to early pliocene: the andrill and-1b core record |
publishDate |
2009 |
url |
http://hdl.handle.net/11365/23816 https://doi.org/10.1016/j.gloplacha.2009.04.007 |
long_lat |
ENVELOPE(159.000,159.000,-79.883,-79.883) ENVELOPE(160.000,160.000,-79.000,-79.000) |
geographic |
Antarctic The Antarctic Victoria Land West Antarctic Ice Sheet McMurdo Sound East Antarctic Ice Sheet Ross Island Ross Ice Shelf Darwin Glacier Mulock Glacier |
geographic_facet |
Antarctic The Antarctic Victoria Land West Antarctic Ice Sheet McMurdo Sound East Antarctic Ice Sheet Ross Island Ross Ice Shelf Darwin Glacier Mulock Glacier |
genre |
Antarc* Antarctic Darwin Glacier Ice Sheet Ice Shelf McMurdo Sound Mulock Glacier Ross Ice Shelf Ross Island Victoria Land |
genre_facet |
Antarc* Antarctic Darwin Glacier Ice Sheet Ice Shelf McMurdo Sound Mulock Glacier Ross Ice Shelf Ross Island Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000272789700004 volume:69 issue:3 firstpage:103 lastpage:123 numberofpages:21 journal:GLOBAL AND PLANETARY CHANGE http://hdl.handle.net/11365/23816 doi:10.1016/j.gloplacha.2009.04.007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-71849119191 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2009.04.007 |
container_title |
Global and Planetary Change |
container_volume |
69 |
container_issue |
3 |
container_start_page |
103 |
op_container_end_page |
123 |
_version_ |
1790609556264452096 |