Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica
The first hole of the Cape Roberts Project, CRP-1, was drilled in October, 1997, to a depth of 148 metres below the sea floor (mbsf) before being terminated unexpectedly the loss of fast sea-ice seaward of the rig following a severe storm. The site lies in 150 m of water at 77.008°S and 163.755°E, 1...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.547981 2023-05-15T13:42:09+02:00 Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica CRP Science Team Barrett, Peter J Fielding, Christopher R Wise, Sherwood W LATITUDE: -77.007580 * LONGITUDE: 163.755080 * DATE/TIME START: 1997-10-17T01:30:00 * DATE/TIME END: 1997-10-24T02:00:00 1998-08-03 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.547981 https://doi.org/10.1594/PANGAEA.547981 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.547981 https://doi.org/10.1594/PANGAEA.547981 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Barrett, Peter J; Fielding, Christopher R; Wise, Sherwood W (1998): Initial report on CRP-1, Cape Roberts Project, Antarctica. Terra Antartica, 5(1), 187 pp, hdl:10013/epic.28286.d001 16 km ENE Cape Roberts Cape Roberts Project Core wireline system CRP CRP-1 CWS off Cape Roberts Ross Sea Antarctica Sampling/drilling ice Dataset 1998 ftpangaea https://doi.org/10.1594/PANGAEA.547981 2023-01-20T07:31:00Z The first hole of the Cape Roberts Project, CRP-1, was drilled in October, 1997, to a depth of 148 metres below the sea floor (mbsf) before being terminated unexpectedly the loss of fast sea-ice seaward of the rig following a severe storm. The site lies in 150 m of water at 77.008°S and 163.755°E, 16 km off Cape Roberts. This part of the report outlines the geologic setting, a gently tilted sequence near the margin of the Victoria Land Basin, and describes the history of the growth of sea ice, which provided the drilling platform, as well as the history of the drilling itself. Core recovery was around 77% in soft and brittle strata to 100 m and 98% below that. The sequence was found to comprise a Quaternary glacigenic interval down to 43.55 mbsf and below this an early Miocene interval that was also glacigenic. Core properties that were studied include fracture patterns, porosity, sonic velocity and magnetic susceptibility. Velocity in particular was useful in relating the cored sequence to the regional seismic stratigraphy. A preliminary assessment suggests that the bottom of the hole is 15 m short of the boundary between seismic sequences V3 and V4. Analytical facilities new to the Antarctic and used for processing samples for the project are described here and include a bench top palynological processing system and a palaeomagnetic laboratory. The core management and sampling system, which recorded over 2000 samples, is also outlined. Dataset Antarc* Antarctic Antarctica Ross Sea Sea ice Victoria Land PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) Roberts Cape ENVELOPE(163.200,163.200,-77.033,-77.033) Ross Sea The Antarctic Victoria Land ENVELOPE(163.755080,163.755080,-77.007580,-77.007580) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
16 km ENE Cape Roberts Cape Roberts Project Core wireline system CRP CRP-1 CWS off Cape Roberts Ross Sea Antarctica Sampling/drilling ice |
spellingShingle |
16 km ENE Cape Roberts Cape Roberts Project Core wireline system CRP CRP-1 CWS off Cape Roberts Ross Sea Antarctica Sampling/drilling ice CRP Science Team Barrett, Peter J Fielding, Christopher R Wise, Sherwood W Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica |
topic_facet |
16 km ENE Cape Roberts Cape Roberts Project Core wireline system CRP CRP-1 CWS off Cape Roberts Ross Sea Antarctica Sampling/drilling ice |
description |
The first hole of the Cape Roberts Project, CRP-1, was drilled in October, 1997, to a depth of 148 metres below the sea floor (mbsf) before being terminated unexpectedly the loss of fast sea-ice seaward of the rig following a severe storm. The site lies in 150 m of water at 77.008°S and 163.755°E, 16 km off Cape Roberts. This part of the report outlines the geologic setting, a gently tilted sequence near the margin of the Victoria Land Basin, and describes the history of the growth of sea ice, which provided the drilling platform, as well as the history of the drilling itself. Core recovery was around 77% in soft and brittle strata to 100 m and 98% below that. The sequence was found to comprise a Quaternary glacigenic interval down to 43.55 mbsf and below this an early Miocene interval that was also glacigenic. Core properties that were studied include fracture patterns, porosity, sonic velocity and magnetic susceptibility. Velocity in particular was useful in relating the cored sequence to the regional seismic stratigraphy. A preliminary assessment suggests that the bottom of the hole is 15 m short of the boundary between seismic sequences V3 and V4. Analytical facilities new to the Antarctic and used for processing samples for the project are described here and include a bench top palynological processing system and a palaeomagnetic laboratory. The core management and sampling system, which recorded over 2000 samples, is also outlined. |
format |
Dataset |
author |
CRP Science Team Barrett, Peter J Fielding, Christopher R Wise, Sherwood W |
author_facet |
CRP Science Team Barrett, Peter J Fielding, Christopher R Wise, Sherwood W |
author_sort |
CRP Science Team |
title |
Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica |
title_short |
Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica |
title_full |
Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica |
title_fullStr |
Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica |
title_full_unstemmed |
Preliminary results and documentation of sediment core CRP-1 from the Ross Sea off Cape Roberts, Antarctica |
title_sort |
preliminary results and documentation of sediment core crp-1 from the ross sea off cape roberts, antarctica |
publisher |
PANGAEA |
publishDate |
1998 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.547981 https://doi.org/10.1594/PANGAEA.547981 |
op_coverage |
LATITUDE: -77.007580 * LONGITUDE: 163.755080 * DATE/TIME START: 1997-10-17T01:30:00 * DATE/TIME END: 1997-10-24T02:00:00 |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) ENVELOPE(163.200,163.200,-77.033,-77.033) ENVELOPE(163.755080,163.755080,-77.007580,-77.007580) |
geographic |
Antarctic Cape Roberts Roberts Cape Ross Sea The Antarctic Victoria Land |
geographic_facet |
Antarctic Cape Roberts Roberts Cape Ross Sea The Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica Ross Sea Sea ice Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea Sea ice Victoria Land |
op_source |
Supplement to: Barrett, Peter J; Fielding, Christopher R; Wise, Sherwood W (1998): Initial report on CRP-1, Cape Roberts Project, Antarctica. Terra Antartica, 5(1), 187 pp, hdl:10013/epic.28286.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.547981 https://doi.org/10.1594/PANGAEA.547981 |
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.547981 |
_version_ |
1766163178732912640 |