Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance
Downhole changes in physical properties at CRP-2, reflecting sedimentological changes induced by glacial marine processes, are measured by a suite of well logs (density, resistivity, neutron, microresistivity, spectral gamma-ray, and magnetic susceptibility), in conjunction with a core-based lonesto...
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ftunivsiena:oai:usiena-air.unisi.it:11365/8327 2024-04-14T08:03:29+00:00 Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance BRINK, J. JARRARD, R. BUCKER, C. WONIK, T. TALARICO, F. M. Brink, J. Jarrard, R. Bucker, C. Wonik, T. Talarico, F. M. 2000 STAMPA http://hdl.handle.net/11365/8327 eng eng volume:7 issue:3 firstpage:349 lastpage:360 numberofpages:12 journal:TERRA ANTARTICA http://hdl.handle.net/11365/8327 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0034457492 info:eu-repo/semantics/closedAccess info:eu-repo/semantics/article 2000 ftunivsiena 2024-03-21T15:53:58Z Downhole changes in physical properties at CRP-2, reflecting sedimentological changes induced by glacial marine processes, are measured by a suite of well logs (density, resistivity, neutron, microresistivity, spectral gamma-ray, and magnetic susceptibility), in conjunction with a core-based lonestone abundance log. The CRP-2 section is subdivided into eight log-based units. Downhole porosity changes are affected by lithology - particularly diamict - and diagenesis. Variations in spectral gamma-ray logs, in particular thorium, are correlated with core-based provenance changes throughout CRP-2. These provenance changes may link glaciation and relative sea level at CRP-2: "interglacial" erosion by glaciers of highland Ferrar Dolerite is associated with highstand sedimentation (e.g., muds), whereas glacial encroachment onto lowland Granite Harbour Intrusive rocks is associated with lowstand diamicts. A sequence stratigraphic model is applied to the logs to identify sequence boundaries and systems tracts within CRP-2, independently of sequence identifications based on lithology. Article in Journal/Newspaper Antarc* Antarctica Victoria Land Università degli Studi di Siena: USiena air Granite Harbour ENVELOPE(162.733,162.733,-76.883,-76.883) Victoria Land |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
description |
Downhole changes in physical properties at CRP-2, reflecting sedimentological changes induced by glacial marine processes, are measured by a suite of well logs (density, resistivity, neutron, microresistivity, spectral gamma-ray, and magnetic susceptibility), in conjunction with a core-based lonestone abundance log. The CRP-2 section is subdivided into eight log-based units. Downhole porosity changes are affected by lithology - particularly diamict - and diagenesis. Variations in spectral gamma-ray logs, in particular thorium, are correlated with core-based provenance changes throughout CRP-2. These provenance changes may link glaciation and relative sea level at CRP-2: "interglacial" erosion by glaciers of highland Ferrar Dolerite is associated with highstand sedimentation (e.g., muds), whereas glacial encroachment onto lowland Granite Harbour Intrusive rocks is associated with lowstand diamicts. A sequence stratigraphic model is applied to the logs to identify sequence boundaries and systems tracts within CRP-2, independently of sequence identifications based on lithology. |
author2 |
Brink, J. Jarrard, R. Bucker, C. Wonik, T. Talarico, F. M. |
format |
Article in Journal/Newspaper |
author |
BRINK, J. JARRARD, R. BUCKER, C. WONIK, T. TALARICO, F. M. |
spellingShingle |
BRINK, J. JARRARD, R. BUCKER, C. WONIK, T. TALARICO, F. M. Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance |
author_facet |
BRINK, J. JARRARD, R. BUCKER, C. WONIK, T. TALARICO, F. M. |
author_sort |
BRINK, J. |
title |
Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance |
title_short |
Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance |
title_full |
Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance |
title_fullStr |
Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance |
title_full_unstemmed |
Sedimentological interpretation of CRP-2/2A Logs, Victoria Land Basin, Antarctica: glacial and sea-level significance |
title_sort |
sedimentological interpretation of crp-2/2a logs, victoria land basin, antarctica: glacial and sea-level significance |
publishDate |
2000 |
url |
http://hdl.handle.net/11365/8327 |
long_lat |
ENVELOPE(162.733,162.733,-76.883,-76.883) |
geographic |
Granite Harbour Victoria Land |
geographic_facet |
Granite Harbour Victoria Land |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_relation |
volume:7 issue:3 firstpage:349 lastpage:360 numberofpages:12 journal:TERRA ANTARTICA http://hdl.handle.net/11365/8327 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0034457492 |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1796299743972818944 |