Physical properties of sediment core AND-2A
Whole-core measurements of Wet Bulk Density (WBD), compressional (P)-wave velocity (Vp), and Magnetic Susceptibility were measured at a sampling interval of 1 or 2 centimetres (cm) throughout the AND-2A drill core for initial core characterisation and on-site correlation with seismic modeling to pre...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.744014 2024-09-15T17:40:32+00:00 Physical properties of sediment core AND-2A Dunbar, Gavin B Atkins, Cliff Magens, Diana Niessen, Frank SMS Science Team LATITUDE: -77.758141 * LONGITUDE: 165.276765 * DATE/TIME START: 2007-10-10T12:00:00 * DATE/TIME END: 2007-11-30T12:00:00 * MINIMUM DEPTH, sediment/rock: 9.03 m * MAXIMUM DEPTH, sediment/rock: 788.20 m 2009 text/tab-separated-values, 166402 data points https://doi.pangaea.de/10.1594/PANGAEA.744014 https://doi.org/10.1594/PANGAEA.744014 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.744014 https://doi.org/10.1594/PANGAEA.744014 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Dunbar, Gavin B; Atkins, Cliff; Magens, Diana; Niessen, Frank; SMS Science Team (2009): Physical Properties of the AND-2A Core, ANDRILL Southern McMurdo Sound Project, Antarctica. Terra Antartica, 15(1), 49-56, hdl:10013/epic.35202.d001 AND-2A ANDRILL Antarctic Geological Drilling Density wet bulk DEPTH sediment/rock DRILL Drilling/drill rig Magnetic susceptibility volume McMurdo Sound McMurdo Station Multi-Sensor Core Logger (MSCL) GEOTEK Porosity fractional SMS Southern McMurdo Sound Velocity compressional wave dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.744014 2024-07-24T02:31:31Z Whole-core measurements of Wet Bulk Density (WBD), compressional (P)-wave velocity (Vp), and Magnetic Susceptibility were measured at a sampling interval of 1 or 2 centimetres (cm) throughout the AND-2A drill core for initial core characterisation and on-site correlation with seismic modeling to predict target-reflector depth. Measurements were made using a GEOTEK (Multi-Sensor-Core-Logger MSCL). Density and velocity standards were measured together with core runs of 3-6 metres (m) (and occasionally up to 18 m) throughout the entire depth range to monitor data quality. Drift of the magnetic susceptibility sensor was also monitored and corrected where necessary. These physical properties show a large range of values, reflecting the different nature of the various lithologies including extremely high velocity and density values in individual clasts, and the effects of cementation on porosity. A downcore increase in WBD and Vp occurs in the upper 200 m, however, no systematic trend exists at greater depths although large fluctuations on a m-decimetre- (dm) scale occur. Magnetic susceptibility is generally low (<100 x 10-5 SI), however, four intervals of high (>600 x 10-5 SI) susceptibility occur at 560, 800, 980 and 1 080 mbsf, indicating a relatively greater contribution of volcanic-derived material to the core site in the lower half of the AND-2A core. Dataset Antarc* Antarctic McMurdo Sound PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(165.276765,165.276765,-77.758141,-77.758141) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AND-2A ANDRILL Antarctic Geological Drilling Density wet bulk DEPTH sediment/rock DRILL Drilling/drill rig Magnetic susceptibility volume McMurdo Sound McMurdo Station Multi-Sensor Core Logger (MSCL) GEOTEK Porosity fractional SMS Southern McMurdo Sound Velocity compressional wave |
spellingShingle |
AND-2A ANDRILL Antarctic Geological Drilling Density wet bulk DEPTH sediment/rock DRILL Drilling/drill rig Magnetic susceptibility volume McMurdo Sound McMurdo Station Multi-Sensor Core Logger (MSCL) GEOTEK Porosity fractional SMS Southern McMurdo Sound Velocity compressional wave Dunbar, Gavin B Atkins, Cliff Magens, Diana Niessen, Frank SMS Science Team Physical properties of sediment core AND-2A |
topic_facet |
AND-2A ANDRILL Antarctic Geological Drilling Density wet bulk DEPTH sediment/rock DRILL Drilling/drill rig Magnetic susceptibility volume McMurdo Sound McMurdo Station Multi-Sensor Core Logger (MSCL) GEOTEK Porosity fractional SMS Southern McMurdo Sound Velocity compressional wave |
description |
Whole-core measurements of Wet Bulk Density (WBD), compressional (P)-wave velocity (Vp), and Magnetic Susceptibility were measured at a sampling interval of 1 or 2 centimetres (cm) throughout the AND-2A drill core for initial core characterisation and on-site correlation with seismic modeling to predict target-reflector depth. Measurements were made using a GEOTEK (Multi-Sensor-Core-Logger MSCL). Density and velocity standards were measured together with core runs of 3-6 metres (m) (and occasionally up to 18 m) throughout the entire depth range to monitor data quality. Drift of the magnetic susceptibility sensor was also monitored and corrected where necessary. These physical properties show a large range of values, reflecting the different nature of the various lithologies including extremely high velocity and density values in individual clasts, and the effects of cementation on porosity. A downcore increase in WBD and Vp occurs in the upper 200 m, however, no systematic trend exists at greater depths although large fluctuations on a m-decimetre- (dm) scale occur. Magnetic susceptibility is generally low (<100 x 10-5 SI), however, four intervals of high (>600 x 10-5 SI) susceptibility occur at 560, 800, 980 and 1 080 mbsf, indicating a relatively greater contribution of volcanic-derived material to the core site in the lower half of the AND-2A core. |
format |
Dataset |
author |
Dunbar, Gavin B Atkins, Cliff Magens, Diana Niessen, Frank SMS Science Team |
author_facet |
Dunbar, Gavin B Atkins, Cliff Magens, Diana Niessen, Frank SMS Science Team |
author_sort |
Dunbar, Gavin B |
title |
Physical properties of sediment core AND-2A |
title_short |
Physical properties of sediment core AND-2A |
title_full |
Physical properties of sediment core AND-2A |
title_fullStr |
Physical properties of sediment core AND-2A |
title_full_unstemmed |
Physical properties of sediment core AND-2A |
title_sort |
physical properties of sediment core and-2a |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.744014 https://doi.org/10.1594/PANGAEA.744014 |
op_coverage |
LATITUDE: -77.758141 * LONGITUDE: 165.276765 * DATE/TIME START: 2007-10-10T12:00:00 * DATE/TIME END: 2007-11-30T12:00:00 * MINIMUM DEPTH, sediment/rock: 9.03 m * MAXIMUM DEPTH, sediment/rock: 788.20 m |
long_lat |
ENVELOPE(165.276765,165.276765,-77.758141,-77.758141) |
genre |
Antarc* Antarctic McMurdo Sound |
genre_facet |
Antarc* Antarctic McMurdo Sound |
op_source |
Supplement to: Dunbar, Gavin B; Atkins, Cliff; Magens, Diana; Niessen, Frank; SMS Science Team (2009): Physical Properties of the AND-2A Core, ANDRILL Southern McMurdo Sound Project, Antarctica. Terra Antartica, 15(1), 49-56, hdl:10013/epic.35202.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.744014 https://doi.org/10.1594/PANGAEA.744014 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.744014 |
_version_ |
1810486567502872576 |