Background to CRP-1, Cape Roberts Project, 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 by 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...
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1998
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ftunivsiena:oai:usiena-air.unisi.it:11365/39686 2024-02-11T09:58:04+01:00 Background to CRP-1, Cape Roberts Project, Antarctica Robert C. Anderson J. Armienti P. Atkins C. Barret, P. Bohaty S. Bryce S. Claps M. Curran M. Davey F. J. De Santis L. Ehrmann W. Florindo F. Fielding C. Hambrey M. Hannah M. Harwood D. M. Henrys S. Hoelscher F. Howe J. A. Jarrard R. Kettler R. Kooyman S. Kopsch C. Krissek L. Lavelle M. Levac E. NiessenF Passchier S. Paulsen T. Powell R. PyneA Rafat G. Raine I. J. Roberts A. P. Sagnotti L. SANDRONI, SONIA Scholz E. Simes J. Smellie J. Strong P. Tabecki M. TALARICO, FRANCO MARIA Taviani M. Verosub K. L. Villa, G. Webb, P. N. Wilson, G. S. Wilson T. Wise S. W. Wonik T. Woolfe K. Wrenn J. H. Robert, C. Anderson, J. Armienti, P. Atkins, C. Barret, P. Bohaty, S. Bryce, S. Claps, M. Curran, M. Davey, F. J. De Santis, L. Ehrmann, W. Florindo, F. Fielding, C. Hambrey, M. Hannah, M. Harwood, D. M. Henrys, S. Hoelscher, F. Howe, J. A. Jarrard, R. Kettler, R. Kooyman, S. Kopsch, C. Krissek, L. Lavelle, M. Levac, E. Niessenf, Passchier, S. Paulsen, T. Powell, R. Pynea, Rafat, G. Raine, I. J. Roberts, A. P. Sagnotti, L. Sandroni, Sonia Scholz, E. Simes, J. Smellie, J. Strong, P. Tabecki, M. Talarico, FRANCO MARIA Taviani, M. Verosub, K. L. Villa, G. Webb, P. N. Wilson, G. S. Wilson, T. Wise, S. W. 1998 STAMPA http://hdl.handle.net/11365/39686 eng eng volume:5 issue:1 firstpage:1 lastpage:30 numberofpages:30 journal:TERRA ANTARTICA http://hdl.handle.net/11365/39686 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0346727650 info:eu-repo/semantics/article 1998 ftunivsiena 2024-01-16T23:12:31Z 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 by 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 2 000 samples, is also outlined. Article in Journal/Newspaper Antarc* Antarctic Antarctica Sea ice Victoria Land Università degli Studi di Siena: USiena air Antarctic Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) The Antarctic Victoria Land |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
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 by 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 2 000 samples, is also outlined. |
author2 |
Robert, C. Anderson, J. Armienti, P. Atkins, C. Barret, P. Bohaty, S. Bryce, S. Claps, M. Curran, M. Davey, F. J. De Santis, L. Ehrmann, W. Florindo, F. Fielding, C. Hambrey, M. Hannah, M. Harwood, D. M. Henrys, S. Hoelscher, F. Howe, J. A. Jarrard, R. Kettler, R. Kooyman, S. Kopsch, C. Krissek, L. Lavelle, M. Levac, E. Niessenf, Passchier, S. Paulsen, T. Powell, R. Pynea, Rafat, G. Raine, I. J. Roberts, A. P. Sagnotti, L. Sandroni, Sonia Scholz, E. Simes, J. Smellie, J. Strong, P. Tabecki, M. Talarico, FRANCO MARIA Taviani, M. Verosub, K. L. Villa, G. Webb, P. N. Wilson, G. S. Wilson, T. Wise, S. W. |
format |
Article in Journal/Newspaper |
author |
Robert C. Anderson J. Armienti P. Atkins C. Barret, P. Bohaty S. Bryce S. Claps M. Curran M. Davey F. J. De Santis L. Ehrmann W. Florindo F. Fielding C. Hambrey M. Hannah M. Harwood D. M. Henrys S. Hoelscher F. Howe J. A. Jarrard R. Kettler R. Kooyman S. Kopsch C. Krissek L. Lavelle M. Levac E. NiessenF Passchier S. Paulsen T. Powell R. PyneA Rafat G. Raine I. J. Roberts A. P. Sagnotti L. SANDRONI, SONIA Scholz E. Simes J. Smellie J. Strong P. Tabecki M. TALARICO, FRANCO MARIA Taviani M. Verosub K. L. Villa, G. Webb, P. N. Wilson, G. S. Wilson T. Wise S. W. Wonik T. Woolfe K. Wrenn J. H. |
spellingShingle |
Robert C. Anderson J. Armienti P. Atkins C. Barret, P. Bohaty S. Bryce S. Claps M. Curran M. Davey F. J. De Santis L. Ehrmann W. Florindo F. Fielding C. Hambrey M. Hannah M. Harwood D. M. Henrys S. Hoelscher F. Howe J. A. Jarrard R. Kettler R. Kooyman S. Kopsch C. Krissek L. Lavelle M. Levac E. NiessenF Passchier S. Paulsen T. Powell R. PyneA Rafat G. Raine I. J. Roberts A. P. Sagnotti L. SANDRONI, SONIA Scholz E. Simes J. Smellie J. Strong P. Tabecki M. TALARICO, FRANCO MARIA Taviani M. Verosub K. L. Villa, G. Webb, P. N. Wilson, G. S. Wilson T. Wise S. W. Wonik T. Woolfe K. Wrenn J. H. Background to CRP-1, Cape Roberts Project, Antarctica |
author_facet |
Robert C. Anderson J. Armienti P. Atkins C. Barret, P. Bohaty S. Bryce S. Claps M. Curran M. Davey F. J. De Santis L. Ehrmann W. Florindo F. Fielding C. Hambrey M. Hannah M. Harwood D. M. Henrys S. Hoelscher F. Howe J. A. Jarrard R. Kettler R. Kooyman S. Kopsch C. Krissek L. Lavelle M. Levac E. NiessenF Passchier S. Paulsen T. Powell R. PyneA Rafat G. Raine I. J. Roberts A. P. Sagnotti L. SANDRONI, SONIA Scholz E. Simes J. Smellie J. Strong P. Tabecki M. TALARICO, FRANCO MARIA Taviani M. Verosub K. L. Villa, G. Webb, P. N. Wilson, G. S. Wilson T. Wise S. W. Wonik T. Woolfe K. Wrenn J. H. |
author_sort |
Robert C. |
title |
Background to CRP-1, Cape Roberts Project, Antarctica |
title_short |
Background to CRP-1, Cape Roberts Project, Antarctica |
title_full |
Background to CRP-1, Cape Roberts Project, Antarctica |
title_fullStr |
Background to CRP-1, Cape Roberts Project, Antarctica |
title_full_unstemmed |
Background to CRP-1, Cape Roberts Project, Antarctica |
title_sort |
background to crp-1, cape roberts project, antarctica |
publishDate |
1998 |
url |
http://hdl.handle.net/11365/39686 |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) |
geographic |
Antarctic Cape Roberts The Antarctic Victoria Land |
geographic_facet |
Antarctic Cape Roberts The Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica Sea ice Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Sea ice Victoria Land |
op_relation |
volume:5 issue:1 firstpage:1 lastpage:30 numberofpages:30 journal:TERRA ANTARTICA http://hdl.handle.net/11365/39686 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0346727650 |
_version_ |
1790593645271842816 |