Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269
We have determined the azimuth of bottom-current flow in drift deposit sediments recovered at ODP Sites 1095 and 1101, Antarctic Peninsula, using paleomagnetic reorientation of anisotropy of magnetic susceptibility (AMS) ellipsoids. A total of 38 cores from the two ODP sites have been measured, prov...
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ftdatacite:10.1594/pangaea.695831 2023-05-15T13:40:55+02:00 Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269 Parés, Josep M Hassold, Noralynn J C Rea, David K van der Pluijm, Ben A 2007 application/zip https://dx.doi.org/10.1594/pangaea.695831 https://doi.pangaea.de/10.1594/PANGAEA.695831 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.margeo.2007.04.002 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg178 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 2007 ftdatacite https://doi.org/10.1594/pangaea.695831 https://doi.org/10.1016/j.margeo.2007.04.002 2022-02-08T16:24:46Z We have determined the azimuth of bottom-current flow in drift deposit sediments recovered at ODP Sites 1095 and 1101, Antarctic Peninsula, using paleomagnetic reorientation of anisotropy of magnetic susceptibility (AMS) ellipsoids. A total of 38 cores from the two ODP sites have been measured, providing spatial and directional information on the physical record of the ACC (Antarctic Circumpolar Current) in the Plio-Pleistocene. Declination and inclination of the paleomagnetic vector of each core segment were used to reorient the AMS principal axes to the geographic coordinates. The cores were reoriented using the measured direction of the characteristic remanent magnetization (ChRM) with respect to a common reference line for the core, from which we are able to determine the orientation of the paleocurrent flow for Sites 1095 (Drift 7) and 1101 (Drift 4) relative to the geographic coordinates. Both sites have paleocurrent directions trending ~NW–SE, which in the former locality are parallel to a sediment wave field. Our study shows that a combination of magnetic fabric analysis and paleomagnetism allows deep-sea sedimentary fabric to be used as a long-term proxy of bottom-current flow history. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula DataCite Metadata Store (German National Library of Science and Technology) Antarctic Antarctic Peninsula Pacific The Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg178 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg178 Joides Resolution Ocean Drilling Program ODP Parés, Josep M Hassold, Noralynn J C Rea, David K van der Pluijm, Ben A Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269 |
topic_facet |
Drilling/drill rig Leg178 Joides Resolution Ocean Drilling Program ODP |
description |
We have determined the azimuth of bottom-current flow in drift deposit sediments recovered at ODP Sites 1095 and 1101, Antarctic Peninsula, using paleomagnetic reorientation of anisotropy of magnetic susceptibility (AMS) ellipsoids. A total of 38 cores from the two ODP sites have been measured, providing spatial and directional information on the physical record of the ACC (Antarctic Circumpolar Current) in the Plio-Pleistocene. Declination and inclination of the paleomagnetic vector of each core segment were used to reorient the AMS principal axes to the geographic coordinates. The cores were reoriented using the measured direction of the characteristic remanent magnetization (ChRM) with respect to a common reference line for the core, from which we are able to determine the orientation of the paleocurrent flow for Sites 1095 (Drift 7) and 1101 (Drift 4) relative to the geographic coordinates. Both sites have paleocurrent directions trending ~NW–SE, which in the former locality are parallel to a sediment wave field. Our study shows that a combination of magnetic fabric analysis and paleomagnetism allows deep-sea sedimentary fabric to be used as a long-term proxy of bottom-current flow history. |
format |
Article in Journal/Newspaper |
author |
Parés, Josep M Hassold, Noralynn J C Rea, David K van der Pluijm, Ben A |
author_facet |
Parés, Josep M Hassold, Noralynn J C Rea, David K van der Pluijm, Ben A |
author_sort |
Parés, Josep M |
title |
Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269 |
title_short |
Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269 |
title_full |
Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269 |
title_fullStr |
Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269 |
title_full_unstemmed |
Magnetic measurements on ODP holes 178-1095A, 178-1095B and 178-1101A, supplement to: Parés, Josep M; Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A (2007): Paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the Antarctic Peninsula Pacific margin (ODP Sites 1095, 1101). Marine Geology, 242(4), 261-269 |
title_sort |
magnetic measurements on odp holes 178-1095a, 178-1095b and 178-1101a, supplement to: parés, josep m; hassold, noralynn j c; rea, david k; van der pluijm, ben a (2007): paleocurrent directions from paleomagnetic reorientations of magnetic fabrics in deep-sea sediments at the antarctic peninsula pacific margin (odp sites 1095, 1101). marine geology, 242(4), 261-269 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2007 |
url |
https://dx.doi.org/10.1594/pangaea.695831 https://doi.pangaea.de/10.1594/PANGAEA.695831 |
geographic |
Antarctic Antarctic Peninsula Pacific The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Pacific The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
https://dx.doi.org/10.1016/j.margeo.2007.04.002 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.695831 https://doi.org/10.1016/j.margeo.2007.04.002 |
_version_ |
1766143131270512640 |