Physical properties of sediment core CRP-3

Drillhole CRP-3 in northern McMurdo Sound (Ross Sea, Antarctica) targeted the western margin of the Victoria Land basin to investigate Neogene to Palaeogene climate and tectonic history by obtaining continuous core and downhole logs. Well logging of CRP-3 has provided a complete and comprehensive da...

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Bibliographic Details
Main Author: Bücker, Christian J
Format: Dataset
Language:English
Published: PANGAEA 2001
Subjects:
CRP
CWS
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.57345
https://doi.org/10.1594/PANGAEA.57345
id ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.57345
record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.57345 2023-05-15T14:04:42+02:00 Physical properties of sediment core CRP-3 Bücker, Christian J 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: 19.96 m * MAXIMUM DEPTH, sediment/rock: 916.66 m 2001-11-02 text/tab-separated-values, 86744 data points https://doi.pangaea.de/10.1594/PANGAEA.57345 https://doi.org/10.1594/PANGAEA.57345 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.57345 https://doi.org/10.1594/PANGAEA.57345 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bücker, Christian J; Jarrard, Richard D; Niessen, Frank; Wonik, Thomas (2001): Statistical analysis of wireline logging data of the CRP-3 drillhole, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 491-506, hdl:10013/epic.28288.d001 Calculated Cape Roberts Project Core wireline system CRP CRP-3 CWS Density wet bulk DEPTH sediment/rock Downhole logging Factor 1 Factor 2 Factor 3 Multivariate statistical analysis Porosity Potassium Resistivity deep shallow Ross Sea Sampling/drilling from ice Spectroscopy gamma ray Susceptibility Thorium Thorium/Potassium ratio Uranium Velocity compressional wave Z-anomaly of magnetic field Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.57345 2023-01-20T07:36:10Z Drillhole CRP-3 in northern McMurdo Sound (Ross Sea, Antarctica) targeted the western margin of the Victoria Land basin to investigate Neogene to Palaeogene climate and tectonic history by obtaining continuous core and downhole logs. Well logging of CRP-3 has provided a complete and comprehensive data set of in situ geophysical measurements down to nearly the bottom of the hole (920 m below sea floor (mbsf)). This paper describes the evaluation and interpretation of the downhole logging data using the multivariate statistical methods of factor and cluster analysis. The factor logs mirror the basic geological controls (i.e., grain size, porosity, clay mineralogy) behind the measured geophysical properties, thereby making them easier to interpret geologically. Cluster analysis of the logs delineates individual logging or sedimentological units with similar downhole geophysical properties. These objectively and independently defined units help differentiate lithological and sedimentological characteristics (e.g. grain size, sediment provenance, glacial influence). For CRP-3, the three factor logs derived from the downhole measurements reflect sediment grain size (proxy for lithology), the occurrence of diamict and/or conglomerate (glacial influence), and sediment provenance. It is possible to divide the borehole into three main sections on the basis of cluster analysis of the three factor logs. The top section down to about 200 mbsf is dominated by mudstone with clearly different physical properties from the mudstones occurring below this depth. Beneath 200 mbsf sandstones dominate the lithology. Two types of sandstones were characterised in the early Oligocene/late Eocene sequence, with a division between the two types occurring at about 630 tnbsf. These two types of sandstones, which are differentiated mainly on the basis of their magnetic and radiogenic properties, can be correlated by detrital mode provenance analysis. Comparison of the results of the factor and cluster analyses with the reflection seismic ... Dataset Antarc* Antarctica McMurdo Sound Ross Sea Victoria Land PANGAEA - Data Publisher for Earth & Environmental Science Ross Sea Victoria Land McMurdo Sound Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) 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 Calculated
Cape Roberts Project
Core wireline system
CRP
CRP-3
CWS
Density
wet bulk
DEPTH
sediment/rock
Downhole logging
Factor 1
Factor 2
Factor 3
Multivariate statistical analysis
Porosity
Potassium
Resistivity
deep
shallow
Ross Sea
Sampling/drilling from ice
Spectroscopy gamma ray
Susceptibility
Thorium
Thorium/Potassium ratio
Uranium
Velocity
compressional wave
Z-anomaly of magnetic field
spellingShingle Calculated
Cape Roberts Project
Core wireline system
CRP
CRP-3
CWS
Density
wet bulk
DEPTH
sediment/rock
Downhole logging
Factor 1
Factor 2
Factor 3
Multivariate statistical analysis
Porosity
Potassium
Resistivity
deep
shallow
Ross Sea
Sampling/drilling from ice
Spectroscopy gamma ray
Susceptibility
Thorium
Thorium/Potassium ratio
Uranium
Velocity
compressional wave
Z-anomaly of magnetic field
Bücker, Christian J
Physical properties of sediment core CRP-3
topic_facet Calculated
Cape Roberts Project
Core wireline system
CRP
CRP-3
CWS
Density
wet bulk
DEPTH
sediment/rock
Downhole logging
Factor 1
Factor 2
Factor 3
Multivariate statistical analysis
Porosity
Potassium
Resistivity
deep
shallow
Ross Sea
Sampling/drilling from ice
Spectroscopy gamma ray
Susceptibility
Thorium
Thorium/Potassium ratio
Uranium
Velocity
compressional wave
Z-anomaly of magnetic field
description Drillhole CRP-3 in northern McMurdo Sound (Ross Sea, Antarctica) targeted the western margin of the Victoria Land basin to investigate Neogene to Palaeogene climate and tectonic history by obtaining continuous core and downhole logs. Well logging of CRP-3 has provided a complete and comprehensive data set of in situ geophysical measurements down to nearly the bottom of the hole (920 m below sea floor (mbsf)). This paper describes the evaluation and interpretation of the downhole logging data using the multivariate statistical methods of factor and cluster analysis. The factor logs mirror the basic geological controls (i.e., grain size, porosity, clay mineralogy) behind the measured geophysical properties, thereby making them easier to interpret geologically. Cluster analysis of the logs delineates individual logging or sedimentological units with similar downhole geophysical properties. These objectively and independently defined units help differentiate lithological and sedimentological characteristics (e.g. grain size, sediment provenance, glacial influence). For CRP-3, the three factor logs derived from the downhole measurements reflect sediment grain size (proxy for lithology), the occurrence of diamict and/or conglomerate (glacial influence), and sediment provenance. It is possible to divide the borehole into three main sections on the basis of cluster analysis of the three factor logs. The top section down to about 200 mbsf is dominated by mudstone with clearly different physical properties from the mudstones occurring below this depth. Beneath 200 mbsf sandstones dominate the lithology. Two types of sandstones were characterised in the early Oligocene/late Eocene sequence, with a division between the two types occurring at about 630 tnbsf. These two types of sandstones, which are differentiated mainly on the basis of their magnetic and radiogenic properties, can be correlated by detrital mode provenance analysis. Comparison of the results of the factor and cluster analyses with the reflection seismic ...
format Dataset
author Bücker, Christian J
author_facet Bücker, Christian J
author_sort Bücker, Christian J
title Physical properties of sediment core CRP-3
title_short Physical properties of sediment core CRP-3
title_full Physical properties of sediment core CRP-3
title_fullStr Physical properties of sediment core CRP-3
title_full_unstemmed Physical properties of sediment core CRP-3
title_sort physical properties of sediment core crp-3
publisher PANGAEA
publishDate 2001
url https://doi.pangaea.de/10.1594/PANGAEA.57345
https://doi.org/10.1594/PANGAEA.57345
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: 19.96 m * MAXIMUM DEPTH, sediment/rock: 916.66 m
long_lat ENVELOPE(-70.467,-70.467,-68.950,-68.950)
ENVELOPE(163.719000,163.719000,-77.006000,-77.006000)
geographic Ross Sea
Victoria Land
McMurdo Sound
Cape Roberts
geographic_facet Ross Sea
Victoria Land
McMurdo Sound
Cape Roberts
genre Antarc*
Antarctica
McMurdo Sound
Ross Sea
Victoria Land
genre_facet Antarc*
Antarctica
McMurdo Sound
Ross Sea
Victoria Land
op_source Supplement to: Bücker, Christian J; Jarrard, Richard D; Niessen, Frank; Wonik, Thomas (2001): Statistical analysis of wireline logging data of the CRP-3 drillhole, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 491-506, hdl:10013/epic.28288.d001
op_relation https://doi.pangaea.de/10.1594/PANGAEA.57345
https://doi.org/10.1594/PANGAEA.57345
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.57345
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