(Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones
The presence of authigenic smectite in the lower Oligocene sandstones of the Cape Roberts Project core CRP-3 from the Victoria Land Basin of Antarctica is confirmed by scanning electron, scanning-transmission electron, and light microscopy. It was emplaced as a single generation of cement within the...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.466043 2023-05-15T13:50:46+02:00 (Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones Wise, Sherwood W Smellie, John L Aghib, Fulvia Sharon Jarrard, Richard D Krissek, Lawrence A LATITUDE: -77.006000 * LONGITUDE: 163.719000 * DATE/TIME START: 1999-10-09T00:00:00 * DATE/TIME END: 1999-11-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 5.79 m * MAXIMUM DEPTH, sediment/rock: 787.66 m 2001-04-27 text/tab-separated-values, 240 data points https://doi.pangaea.de/10.1594/PANGAEA.466043 https://doi.org/10.1594/PANGAEA.466043 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.466043 https://doi.org/10.1594/PANGAEA.466043 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Wise, Sherwood W; Smellie, John L; Aghib, Fulvia Sharon; Jarrard, Richard D; Krissek, Lawrence A (2001): Authigenic smectite clay coats in CRP-3 drillcore, Victoria Land Basin, Antarctica, as a possible indicator of fluid flow: a progress report. Terra Antartica, 8(3), 281-298, hdl:10013/epic.28200.d001 Cape Roberts Project Cement Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Grain size description Matrix description Ross Sea Sampling/drilling from ice Sorting description Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.466043 2023-01-20T08:20:53Z The presence of authigenic smectite in the lower Oligocene sandstones of the Cape Roberts Project core CRP-3 from the Victoria Land Basin of Antarctica is confirmed by scanning electron, scanning-transmission electron, and light microscopy. It was emplaced as a single generation of cement within the lower portion of the Oligocene section. This section has undergone no discernible compaction since cementation. Permeabilities measured on fifty core plugs show that the lower portion of the Oligocene (from 370-766 meters below sea floor) also has systematically higher values than sediment in uppermost CRP-3 and all of CRP-2 and CRP-1. Three models for smectite authigenesis are considered as multiple working hypotheses to be tested: 1) Burial diagenesis with necessary components sourced from volcanogenic materials and heavy minerals within the drilled sequence: 2) Precipitation from hydrothermal waters associated with possible igneous intrusion(s) and nearby faults; 3) Mobilization and injection of regionally compactive 'thermobaric' fluids along a nearby fault that bounds a major graben parallel to the Transantarctic Mountain Front. The preponderance of the available evidence and Occum's Razor favors the first model, although special circumstances dictated by the position of the drill site along a rapidly subsiding rift basin require that all three models be considered equally until our analyses are complete. Dataset Antarc* Antarctica Ross Sea Victoria Land PANGAEA - Data Publisher for Earth & Environmental Science Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) Ross Sea Victoria Land ENVELOPE(163.719000,163.719000,-77.006000,-77.006000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Cape Roberts Project Cement Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Grain size description Matrix description Ross Sea Sampling/drilling from ice Sorting description |
spellingShingle |
Cape Roberts Project Cement Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Grain size description Matrix description Ross Sea Sampling/drilling from ice Sorting description Wise, Sherwood W Smellie, John L Aghib, Fulvia Sharon Jarrard, Richard D Krissek, Lawrence A (Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones |
topic_facet |
Cape Roberts Project Cement Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Grain size description Matrix description Ross Sea Sampling/drilling from ice Sorting description |
description |
The presence of authigenic smectite in the lower Oligocene sandstones of the Cape Roberts Project core CRP-3 from the Victoria Land Basin of Antarctica is confirmed by scanning electron, scanning-transmission electron, and light microscopy. It was emplaced as a single generation of cement within the lower portion of the Oligocene section. This section has undergone no discernible compaction since cementation. Permeabilities measured on fifty core plugs show that the lower portion of the Oligocene (from 370-766 meters below sea floor) also has systematically higher values than sediment in uppermost CRP-3 and all of CRP-2 and CRP-1. Three models for smectite authigenesis are considered as multiple working hypotheses to be tested: 1) Burial diagenesis with necessary components sourced from volcanogenic materials and heavy minerals within the drilled sequence: 2) Precipitation from hydrothermal waters associated with possible igneous intrusion(s) and nearby faults; 3) Mobilization and injection of regionally compactive 'thermobaric' fluids along a nearby fault that bounds a major graben parallel to the Transantarctic Mountain Front. The preponderance of the available evidence and Occum's Razor favors the first model, although special circumstances dictated by the position of the drill site along a rapidly subsiding rift basin require that all three models be considered equally until our analyses are complete. |
format |
Dataset |
author |
Wise, Sherwood W Smellie, John L Aghib, Fulvia Sharon Jarrard, Richard D Krissek, Lawrence A |
author_facet |
Wise, Sherwood W Smellie, John L Aghib, Fulvia Sharon Jarrard, Richard D Krissek, Lawrence A |
author_sort |
Wise, Sherwood W |
title |
(Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones |
title_short |
(Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones |
title_full |
(Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones |
title_fullStr |
(Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones |
title_full_unstemmed |
(Table 1) Description of grain size, cement, and matrix in sediment core CRP-3 sandstones |
title_sort |
(table 1) description of grain size, cement, and matrix in sediment core crp-3 sandstones |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.466043 https://doi.org/10.1594/PANGAEA.466043 |
op_coverage |
LATITUDE: -77.006000 * LONGITUDE: 163.719000 * DATE/TIME START: 1999-10-09T00:00:00 * DATE/TIME END: 1999-11-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 5.79 m * MAXIMUM DEPTH, sediment/rock: 787.66 m |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) ENVELOPE(163.719000,163.719000,-77.006000,-77.006000) |
geographic |
Cape Roberts Ross Sea Victoria Land |
geographic_facet |
Cape Roberts Ross Sea Victoria Land |
genre |
Antarc* Antarctica Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctica Ross Sea Victoria Land |
op_source |
Supplement to: Wise, Sherwood W; Smellie, John L; Aghib, Fulvia Sharon; Jarrard, Richard D; Krissek, Lawrence A (2001): Authigenic smectite clay coats in CRP-3 drillcore, Victoria Land Basin, Antarctica, as a possible indicator of fluid flow: a progress report. Terra Antartica, 8(3), 281-298, hdl:10013/epic.28200.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.466043 https://doi.org/10.1594/PANGAEA.466043 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.466043 |
_version_ |
1766253989239717888 |