Magnetostratigraphy of ODP Sites 114-703 and 114-703
ODP Sites 703 and 704 were drilled near the crest of the Meteor Rise in the southeastern part of the South Atlantic in order to explore the role of this aseismic rise as a barrier to the flow of deep water between the Antarctic and South Atlantic during the early evolution of the South Atlantic and...
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1991
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.754616 2023-05-15T13:42:10+02:00 Magnetostratigraphy of ODP Sites 114-703 and 114-703 Hailwood, Ernie A Clement, Bradford M MEDIAN LATITUDE: -46.965250 * MEDIAN LONGITUDE: 7.657675 * SOUTH-BOUND LATITUDE: -47.051000 * WEST-BOUND LONGITUDE: 7.420500 * NORTH-BOUND LATITUDE: -46.879000 * EAST-BOUND LONGITUDE: 7.894700 * DATE/TIME START: 1987-04-21T00:00:00 * DATE/TIME END: 1987-05-03T10:14:00 1991-12-03 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.754616 https://doi.org/10.1594/PANGAEA.754616 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.754616 https://doi.org/10.1594/PANGAEA.754616 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Hailwood, Ernie A; Clement, Bradford M (1991): Magnetostratigraphy of Sites 703 and 704, Meteor Rise, southeastern South Atlantic. In: Ciesielski, PF; Kristoffersen, Y; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 114, 367-386, https://doi.org/10.2973/odp.proc.sr.114.186.1991 114-703 114-703A 114-704 114-704A 114-704B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean Dataset 1991 ftpangaea https://doi.org/10.1594/PANGAEA.754616 https://doi.org/10.2973/odp.proc.sr.114.186.1991 2023-01-20T07:31:59Z ODP Sites 703 and 704 were drilled near the crest of the Meteor Rise in the southeastern part of the South Atlantic in order to explore the role of this aseismic rise as a barrier to the flow of deep water between the Antarctic and South Atlantic during the early evolution of the South Atlantic and to investigate the subsequent subsidence and paleoceanographic evolution of this area. A combination of shipboard whole-core paleomagnetic determinations on all archive core halves and post-cruise paleomagnetic analyses of some 440 discrete samples from the two sites has allowed definition of the sequence of geomagnetic polarity reversals that occurred during deposition of much of this sedimentary sequence. The magnetostratigraphic record for Sift 703 extends from the middle Eocene to the early Miocene and that for Site 704 from the early Miocene to the Pleistocene. The correlation of this record to the standard geomagnetic polarity time scale of Berggren et al. (1985, doi:10.1130/0016-7606(1985)96<1407:CG>2.0.CO;2) is generally good for the Oligocene and late Miocene to Pleistocene, but is poorer for the early and middle Miocene. The combined magnetostratigraphic record for these two sites will facilitate the development and chronometric calibration of refined high-latitude biostratigraphic zonations. Furthermore, it provides an important basis for defining the periodicity of the late Neogene stable isotope and carbonate fluctuations observed in these cores and relating these changes to the paleoclimatic and paleoceanographic driving forces. Dataset Antarc* Antarctic South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic The Antarctic ENVELOPE(7.420500,7.894700,-46.879000,-47.051000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
114-703 114-703A 114-704 114-704A 114-704B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean |
spellingShingle |
114-703 114-703A 114-704 114-704A 114-704B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean Hailwood, Ernie A Clement, Bradford M Magnetostratigraphy of ODP Sites 114-703 and 114-703 |
topic_facet |
114-703 114-703A 114-704 114-704A 114-704B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean |
description |
ODP Sites 703 and 704 were drilled near the crest of the Meteor Rise in the southeastern part of the South Atlantic in order to explore the role of this aseismic rise as a barrier to the flow of deep water between the Antarctic and South Atlantic during the early evolution of the South Atlantic and to investigate the subsequent subsidence and paleoceanographic evolution of this area. A combination of shipboard whole-core paleomagnetic determinations on all archive core halves and post-cruise paleomagnetic analyses of some 440 discrete samples from the two sites has allowed definition of the sequence of geomagnetic polarity reversals that occurred during deposition of much of this sedimentary sequence. The magnetostratigraphic record for Sift 703 extends from the middle Eocene to the early Miocene and that for Site 704 from the early Miocene to the Pleistocene. The correlation of this record to the standard geomagnetic polarity time scale of Berggren et al. (1985, doi:10.1130/0016-7606(1985)96<1407:CG>2.0.CO;2) is generally good for the Oligocene and late Miocene to Pleistocene, but is poorer for the early and middle Miocene. The combined magnetostratigraphic record for these two sites will facilitate the development and chronometric calibration of refined high-latitude biostratigraphic zonations. Furthermore, it provides an important basis for defining the periodicity of the late Neogene stable isotope and carbonate fluctuations observed in these cores and relating these changes to the paleoclimatic and paleoceanographic driving forces. |
format |
Dataset |
author |
Hailwood, Ernie A Clement, Bradford M |
author_facet |
Hailwood, Ernie A Clement, Bradford M |
author_sort |
Hailwood, Ernie A |
title |
Magnetostratigraphy of ODP Sites 114-703 and 114-703 |
title_short |
Magnetostratigraphy of ODP Sites 114-703 and 114-703 |
title_full |
Magnetostratigraphy of ODP Sites 114-703 and 114-703 |
title_fullStr |
Magnetostratigraphy of ODP Sites 114-703 and 114-703 |
title_full_unstemmed |
Magnetostratigraphy of ODP Sites 114-703 and 114-703 |
title_sort |
magnetostratigraphy of odp sites 114-703 and 114-703 |
publisher |
PANGAEA |
publishDate |
1991 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.754616 https://doi.org/10.1594/PANGAEA.754616 |
op_coverage |
MEDIAN LATITUDE: -46.965250 * MEDIAN LONGITUDE: 7.657675 * SOUTH-BOUND LATITUDE: -47.051000 * WEST-BOUND LONGITUDE: 7.420500 * NORTH-BOUND LATITUDE: -46.879000 * EAST-BOUND LONGITUDE: 7.894700 * DATE/TIME START: 1987-04-21T00:00:00 * DATE/TIME END: 1987-05-03T10:14:00 |
long_lat |
ENVELOPE(7.420500,7.894700,-46.879000,-47.051000) |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic South Atlantic Ocean |
genre_facet |
Antarc* Antarctic South Atlantic Ocean |
op_source |
Supplement to: Hailwood, Ernie A; Clement, Bradford M (1991): Magnetostratigraphy of Sites 703 and 704, Meteor Rise, southeastern South Atlantic. In: Ciesielski, PF; Kristoffersen, Y; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 114, 367-386, https://doi.org/10.2973/odp.proc.sr.114.186.1991 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.754616 https://doi.org/10.1594/PANGAEA.754616 |
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.754616 https://doi.org/10.2973/odp.proc.sr.114.186.1991 |
_version_ |
1766163931251867648 |