Age determination and geochemistry of sediment core KK9601
A light, mining drill rig deployed from the stern of a research vessel has been used to carry out shallow drilling in 212 m water depth on the continental shelf in the eastern Weddell Sea. Penetration was 15 m below the seabed with 18% recovery in the 31 hours available for the experiment. The recov...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.733563 2024-09-15T17:43:58+00:00 Age determination and geochemistry of sediment core KK9601 Kristoffersen, Yngve Strand, Kari O Vorren, Tore O Harwood, David M Webb, Peter-Noel 2000 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.733563 https://doi.org/10.1594/PANGAEA.733563 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.733563 https://doi.org/10.1594/PANGAEA.733563 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Kristoffersen, Yngve; Strand, Kari O; Vorren, Tore O; Harwood, David M; Webb, Peter-Noel (2000): Pilot shallow drilling on the continental shelf, Dronning Maud Land, Antarctica. Antarctic Science, 12(4), 463-470, https://doi.org/10.1017/S0954102000000547 Aranda (1989) DRILL Drilling/drill rig KK9601 PilotDrillDronningMaudLand dataset publication series 2000 ftpangaea https://doi.org/10.1594/PANGAEA.73356310.1017/S0954102000000547 2024-07-24T02:31:20Z A light, mining drill rig deployed from the stern of a research vessel has been used to carry out shallow drilling in 212 m water depth on the continental shelf in the eastern Weddell Sea. Penetration was 15 m below the seabed with 18% recovery in the 31 hours available for the experiment. The recovered glacigenic sediments are predominantly volcanic material of basaltic and andesitic composition with petrological characteristics and age similar to the continental flood basalts exposed in Vestfjella, about 130 km upstream from the drill site. The sediments include a reworked marine Miocene diatom flora. The material documents oscillations of the East Antarctic Ice Sheet over the past 30 ka. The lowermost diamicton probably represents a deformation till, and the grounding line retreated past the drill site 30 km from the shelf edge about 30 kyr BP. A readvance occurred during the Late Wisconsin Glacial Maximum. Assuming a reservoir correction of 1300 yr, marine conditions existed at the site between 10.1-7 kyr BP, and later at least between 2.8 and 2.5 kyr BP. The stratigraphy at the site has been disturbed by iceberg ploughing and/or contact between the ice shelf and the sea floor during local advances after 2.5 kyr BP. Other/Unknown Material Antarc* Antarctic Antarctic Science Ice Sheet Ice Shelf Iceberg* Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Aranda (1989) DRILL Drilling/drill rig KK9601 PilotDrillDronningMaudLand |
spellingShingle |
Aranda (1989) DRILL Drilling/drill rig KK9601 PilotDrillDronningMaudLand Kristoffersen, Yngve Strand, Kari O Vorren, Tore O Harwood, David M Webb, Peter-Noel Age determination and geochemistry of sediment core KK9601 |
topic_facet |
Aranda (1989) DRILL Drilling/drill rig KK9601 PilotDrillDronningMaudLand |
description |
A light, mining drill rig deployed from the stern of a research vessel has been used to carry out shallow drilling in 212 m water depth on the continental shelf in the eastern Weddell Sea. Penetration was 15 m below the seabed with 18% recovery in the 31 hours available for the experiment. The recovered glacigenic sediments are predominantly volcanic material of basaltic and andesitic composition with petrological characteristics and age similar to the continental flood basalts exposed in Vestfjella, about 130 km upstream from the drill site. The sediments include a reworked marine Miocene diatom flora. The material documents oscillations of the East Antarctic Ice Sheet over the past 30 ka. The lowermost diamicton probably represents a deformation till, and the grounding line retreated past the drill site 30 km from the shelf edge about 30 kyr BP. A readvance occurred during the Late Wisconsin Glacial Maximum. Assuming a reservoir correction of 1300 yr, marine conditions existed at the site between 10.1-7 kyr BP, and later at least between 2.8 and 2.5 kyr BP. The stratigraphy at the site has been disturbed by iceberg ploughing and/or contact between the ice shelf and the sea floor during local advances after 2.5 kyr BP. |
format |
Other/Unknown Material |
author |
Kristoffersen, Yngve Strand, Kari O Vorren, Tore O Harwood, David M Webb, Peter-Noel |
author_facet |
Kristoffersen, Yngve Strand, Kari O Vorren, Tore O Harwood, David M Webb, Peter-Noel |
author_sort |
Kristoffersen, Yngve |
title |
Age determination and geochemistry of sediment core KK9601 |
title_short |
Age determination and geochemistry of sediment core KK9601 |
title_full |
Age determination and geochemistry of sediment core KK9601 |
title_fullStr |
Age determination and geochemistry of sediment core KK9601 |
title_full_unstemmed |
Age determination and geochemistry of sediment core KK9601 |
title_sort |
age determination and geochemistry of sediment core kk9601 |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.733563 https://doi.org/10.1594/PANGAEA.733563 |
genre |
Antarc* Antarctic Antarctic Science Ice Sheet Ice Shelf Iceberg* Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Science Ice Sheet Ice Shelf Iceberg* Weddell Sea |
op_source |
Supplement to: Kristoffersen, Yngve; Strand, Kari O; Vorren, Tore O; Harwood, David M; Webb, Peter-Noel (2000): Pilot shallow drilling on the continental shelf, Dronning Maud Land, Antarctica. Antarctic Science, 12(4), 463-470, https://doi.org/10.1017/S0954102000000547 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.733563 https://doi.org/10.1594/PANGAEA.733563 |
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.73356310.1017/S0954102000000547 |
_version_ |
1810491230678679552 |