Magnetostratigraphic age-depth tie points of ODP Leg 208 sites
We report the paleomagnetic and rock magnetic results from discrete sample analysis of sediments from Walvis Ridge, Leg 208 of the Ocean Drilling Program. In an effort to refine the shipboard magnetostratigraphy, alternating field and thermal demagnetization of discrete samples were carried out, pre...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.776196 2024-09-15T18:36:27+00:00 Magnetostratigraphic age-depth tie points of ODP Leg 208 sites Bowles, Julie MEDIAN LATITUDE: -28.287811 * MEDIAN LONGITUDE: 2.315958 * SOUTH-BOUND LATITUDE: -28.835017 * WEST-BOUND LONGITUDE: 1.577000 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.845483 * DATE/TIME START: 2003-03-24T00:00:00 * DATE/TIME END: 2003-04-26T00:00:00 2006 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.776196 https://doi.org/10.1594/PANGAEA.776196 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.776196 https://doi.org/10.1594/PANGAEA.776196 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Bowles, Julie (2006): Data report: Revised magnetostratigraphy and magnetic mineralogy of sediments from Walvis Ridge, Leg 208. In: Kroon, D., Zachos, J.C., and Richter, C. (Eds.), Proceedings of the Ocean Drilling Program, Scientific Results, 208: College Station, TX (Ocean Drilling Program), 208, 1-24, https://doi.org/10.2973/odp.proc.sr.208.206.2006 208-1262 208-1263 208-1264 208-1265 208-1266 208-1267 COMPCORE Composite Core Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean dataset publication series 2006 ftpangaea https://doi.org/10.1594/PANGAEA.77619610.2973/odp.proc.sr.208.206.2006 2024-07-24T02:31:21Z We report the paleomagnetic and rock magnetic results from discrete sample analysis of sediments from Walvis Ridge, Leg 208 of the Ocean Drilling Program. In an effort to refine the shipboard magnetostratigraphy, alternating field and thermal demagnetization of discrete samples were carried out, predominantly on samples from Sites 1262 and 1267. Results are generally consistent with the shipboard pass-through cryomagnetometer data, though in some cases the discrete samples resolved ambiguities in the reversal record. Significantly, the C24r/C24n reversal boundary was identified at Sites 1262 and 1267, and most boundaries in the Paleocene and Upper Cretaceous sections are now identified to within 10-30 cm. Magnetic mineralogy results show that prior to the late Miocene, the predominant detrital magnetic component was coarse-grained magnetite and that after the late Miocene, titanomagnetite has also been present. This suggests a possible change in detrital source at that time. Other/Unknown Material South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(1.577000,2.845483,-27.185833,-28.835017) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
208-1262 208-1263 208-1264 208-1265 208-1266 208-1267 COMPCORE Composite Core Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
spellingShingle |
208-1262 208-1263 208-1264 208-1265 208-1266 208-1267 COMPCORE Composite Core Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean Bowles, Julie Magnetostratigraphic age-depth tie points of ODP Leg 208 sites |
topic_facet |
208-1262 208-1263 208-1264 208-1265 208-1266 208-1267 COMPCORE Composite Core Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
description |
We report the paleomagnetic and rock magnetic results from discrete sample analysis of sediments from Walvis Ridge, Leg 208 of the Ocean Drilling Program. In an effort to refine the shipboard magnetostratigraphy, alternating field and thermal demagnetization of discrete samples were carried out, predominantly on samples from Sites 1262 and 1267. Results are generally consistent with the shipboard pass-through cryomagnetometer data, though in some cases the discrete samples resolved ambiguities in the reversal record. Significantly, the C24r/C24n reversal boundary was identified at Sites 1262 and 1267, and most boundaries in the Paleocene and Upper Cretaceous sections are now identified to within 10-30 cm. Magnetic mineralogy results show that prior to the late Miocene, the predominant detrital magnetic component was coarse-grained magnetite and that after the late Miocene, titanomagnetite has also been present. This suggests a possible change in detrital source at that time. |
format |
Other/Unknown Material |
author |
Bowles, Julie |
author_facet |
Bowles, Julie |
author_sort |
Bowles, Julie |
title |
Magnetostratigraphic age-depth tie points of ODP Leg 208 sites |
title_short |
Magnetostratigraphic age-depth tie points of ODP Leg 208 sites |
title_full |
Magnetostratigraphic age-depth tie points of ODP Leg 208 sites |
title_fullStr |
Magnetostratigraphic age-depth tie points of ODP Leg 208 sites |
title_full_unstemmed |
Magnetostratigraphic age-depth tie points of ODP Leg 208 sites |
title_sort |
magnetostratigraphic age-depth tie points of odp leg 208 sites |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.776196 https://doi.org/10.1594/PANGAEA.776196 |
op_coverage |
MEDIAN LATITUDE: -28.287811 * MEDIAN LONGITUDE: 2.315958 * SOUTH-BOUND LATITUDE: -28.835017 * WEST-BOUND LONGITUDE: 1.577000 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.845483 * DATE/TIME START: 2003-03-24T00:00:00 * DATE/TIME END: 2003-04-26T00:00:00 |
long_lat |
ENVELOPE(1.577000,2.845483,-27.185833,-28.835017) |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Supplement to: Bowles, Julie (2006): Data report: Revised magnetostratigraphy and magnetic mineralogy of sediments from Walvis Ridge, Leg 208. In: Kroon, D., Zachos, J.C., and Richter, C. (Eds.), Proceedings of the Ocean Drilling Program, Scientific Results, 208: College Station, TX (Ocean Drilling Program), 208, 1-24, https://doi.org/10.2973/odp.proc.sr.208.206.2006 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.776196 https://doi.org/10.1594/PANGAEA.776196 |
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.77619610.2973/odp.proc.sr.208.206.2006 |
_version_ |
1810480122964213760 |