Magnetostratigraphy of DSDP Leg 94 sediments
The primary objective of DSDP Leg 94 was to obtain continuous paleoclimatic records along a roughly north-south transect in the North Atlantic. The magnetostratigraphy of 21 holes at 6 sites cored with the hydraulic piston corer and extended-core-barrel corer is presented here and establishes an ind...
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PANGAEA
1987
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.788554 2023-05-15T17:30:43+02:00 Magnetostratigraphy of DSDP Leg 94 sediments Clement, Bradford M Robinson, Frank MEDIAN LATITUDE: 48.776085 * MEDIAN LONGITUDE: -26.034910 * SOUTH-BOUND LATITUDE: 37.338200 * WEST-BOUND LONGITUDE: -35.500300 * NORTH-BOUND LATITUDE: 53.224500 * EAST-BOUND LONGITUDE: -18.886800 * DATE/TIME START: 1983-07-02T00:00:00 * DATE/TIME END: 1983-08-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 16.54 m * MAXIMUM DEPTH, sediment/rock: 916.55 m 1987-09-13 text/tab-separated-values, 1333 data points https://doi.pangaea.de/10.1594/PANGAEA.788554 https://doi.org/10.1594/PANGAEA.788554 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.788554 https://doi.org/10.1594/PANGAEA.788554 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Clement, Bradford M; Robinson, Frank (1987): The magnetostratigraphy of Leg 94 sediments. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 635-650, https://doi.org/10.2973/dsdp.proc.94.112.1987 94-606 94-606A 94-607 94-607A 94-608 94-608A 94-609 94-609B 94-609C 94-610 94-610A 94-610B 94-610C 94-610D 94-610E 94-611 94-611A 94-611C 94-611D 94-611E Age model Ageprofile Datum Description Deep Sea Drilling Project Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg94 Longitude of event North Atlantic/FLANK North Atlantic/RIDGE Sample code/label Sample code/label 2 Dataset 1987 ftpangaea https://doi.org/10.1594/PANGAEA.788554 https://doi.org/10.2973/dsdp.proc.94.112.1987 2023-01-20T08:55:14Z The primary objective of DSDP Leg 94 was to obtain continuous paleoclimatic records along a roughly north-south transect in the North Atlantic. The magnetostratigraphy of 21 holes at 6 sites cored with the hydraulic piston corer and extended-core-barrel corer is presented here and establishes an independent chronology for these sediments. Nearly complete records were obtained for the last 2.5 m.y.; in addition, deeper drilling at three sites to satisfy tectonic and paleoceanographic objectives produced older sections suitable for magnetostratigraphic study, allowing first-order correlations of the polarity sequences with calcareous and siliceous micro fossil events. The sections with high sediment accumulation rates yielded very detailed records of polarity history and allowed three short normal-polarity zones within the Matuyama Chronozone to be detected, in addition to the Jaramillo and Olduvai subchronozones. A short reversed-polarity zone also occurs, within the upper intervals of the Gauss Chronozone. These short zones are present in multiple holes, ruling out the possibility that they might be of local origin. Correlation of these short zones with radiometrically dated polarity zones in igneous rocks strongly supports the interpretation of these polarity zones as records of true geomagnetic polarity chrons. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-35.500300,-18.886800,53.224500,37.338200) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
94-606 94-606A 94-607 94-607A 94-608 94-608A 94-609 94-609B 94-609C 94-610 94-610A 94-610B 94-610C 94-610D 94-610E 94-611 94-611A 94-611C 94-611D 94-611E Age model Ageprofile Datum Description Deep Sea Drilling Project Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg94 Longitude of event North Atlantic/FLANK North Atlantic/RIDGE Sample code/label Sample code/label 2 |
spellingShingle |
94-606 94-606A 94-607 94-607A 94-608 94-608A 94-609 94-609B 94-609C 94-610 94-610A 94-610B 94-610C 94-610D 94-610E 94-611 94-611A 94-611C 94-611D 94-611E Age model Ageprofile Datum Description Deep Sea Drilling Project Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg94 Longitude of event North Atlantic/FLANK North Atlantic/RIDGE Sample code/label Sample code/label 2 Clement, Bradford M Robinson, Frank Magnetostratigraphy of DSDP Leg 94 sediments |
topic_facet |
94-606 94-606A 94-607 94-607A 94-608 94-608A 94-609 94-609B 94-609C 94-610 94-610A 94-610B 94-610C 94-610D 94-610E 94-611 94-611A 94-611C 94-611D 94-611E Age model Ageprofile Datum Description Deep Sea Drilling Project Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg94 Longitude of event North Atlantic/FLANK North Atlantic/RIDGE Sample code/label Sample code/label 2 |
description |
The primary objective of DSDP Leg 94 was to obtain continuous paleoclimatic records along a roughly north-south transect in the North Atlantic. The magnetostratigraphy of 21 holes at 6 sites cored with the hydraulic piston corer and extended-core-barrel corer is presented here and establishes an independent chronology for these sediments. Nearly complete records were obtained for the last 2.5 m.y.; in addition, deeper drilling at three sites to satisfy tectonic and paleoceanographic objectives produced older sections suitable for magnetostratigraphic study, allowing first-order correlations of the polarity sequences with calcareous and siliceous micro fossil events. The sections with high sediment accumulation rates yielded very detailed records of polarity history and allowed three short normal-polarity zones within the Matuyama Chronozone to be detected, in addition to the Jaramillo and Olduvai subchronozones. A short reversed-polarity zone also occurs, within the upper intervals of the Gauss Chronozone. These short zones are present in multiple holes, ruling out the possibility that they might be of local origin. Correlation of these short zones with radiometrically dated polarity zones in igneous rocks strongly supports the interpretation of these polarity zones as records of true geomagnetic polarity chrons. |
format |
Dataset |
author |
Clement, Bradford M Robinson, Frank |
author_facet |
Clement, Bradford M Robinson, Frank |
author_sort |
Clement, Bradford M |
title |
Magnetostratigraphy of DSDP Leg 94 sediments |
title_short |
Magnetostratigraphy of DSDP Leg 94 sediments |
title_full |
Magnetostratigraphy of DSDP Leg 94 sediments |
title_fullStr |
Magnetostratigraphy of DSDP Leg 94 sediments |
title_full_unstemmed |
Magnetostratigraphy of DSDP Leg 94 sediments |
title_sort |
magnetostratigraphy of dsdp leg 94 sediments |
publisher |
PANGAEA |
publishDate |
1987 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.788554 https://doi.org/10.1594/PANGAEA.788554 |
op_coverage |
MEDIAN LATITUDE: 48.776085 * MEDIAN LONGITUDE: -26.034910 * SOUTH-BOUND LATITUDE: 37.338200 * WEST-BOUND LONGITUDE: -35.500300 * NORTH-BOUND LATITUDE: 53.224500 * EAST-BOUND LONGITUDE: -18.886800 * DATE/TIME START: 1983-07-02T00:00:00 * DATE/TIME END: 1983-08-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 16.54 m * MAXIMUM DEPTH, sediment/rock: 916.55 m |
long_lat |
ENVELOPE(-35.500300,-18.886800,53.224500,37.338200) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Clement, Bradford M; Robinson, Frank (1987): The magnetostratigraphy of Leg 94 sediments. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 635-650, https://doi.org/10.2973/dsdp.proc.94.112.1987 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.788554 https://doi.org/10.1594/PANGAEA.788554 |
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.788554 https://doi.org/10.2973/dsdp.proc.94.112.1987 |
_version_ |
1766127601059889152 |