Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf
The sandfraction of the sediment was analysed in five cores, taken from 65 m water depth in the central and eastern part of the Persian Gulf. The holocene marls are underlayn by aragonite muds, which are probably 10-11,000 years old. 1. The cores could be subdivided into coarse grained and fine grai...
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1972
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.548411 https://doi.org/10.1594/PANGAEA.548411 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.548411 2024-09-09T20:04:02+00:00 Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf Diester, Lieselotte MEDIAN LATITUDE: 26.762333 * MEDIAN LONGITUDE: 55.679917 * SOUTH-BOUND LATITUDE: 26.316667 * WEST-BOUND LONGITUDE: 52.093000 * NORTH-BOUND LATITUDE: 27.516000 * EAST-BOUND LONGITUDE: 56.913333 * DATE/TIME START: 1965-04-11T00:00:00 * DATE/TIME END: 1965-04-14T00:00:00 1972 application/zip, 8 datasets https://doi.pangaea.de/10.1594/PANGAEA.548411 https://doi.org/10.1594/PANGAEA.548411 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.548411 https://doi.org/10.1594/PANGAEA.548411 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Diester, Lieselotte (1972): Zur spätpleistozänen und holozänen Sedimentation im zentralen und östlichen Persischen Golf. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C8, 37-83 GC GIK/IfG GIK01177 GIK01201 Gravity corer Gravity corer (Kiel type) IIOE - International Indian Ocean Expedition Indian Ocean Institute for Geosciences Christian Albrechts University Kiel IOE1056 KAL Kasten corer M1 M1_355B 01177-C M1_379 M1056D Meteor (1964) Persian Gulf SL dataset publication series 1972 ftpangaea https://doi.org/10.1594/PANGAEA.548411 2024-07-24T02:31:42Z The sandfraction of the sediment was analysed in five cores, taken from 65 m water depth in the central and eastern part of the Persian Gulf. The holocene marls are underlayn by aragonite muds, which are probably 10-11,000 years old. 1. The cores could be subdivided into coarse grained and fine grained layers. Sorting is demonstrated by the following criteria: With increasing median values of the sandfraction - the fine grained fraction decreases within each core; - the median of each biogenic component, benthonic as well as planktonic, increases; - the median of the relict sediment, which in core 1179 was carried upward into the marl by bioturbation, increases; - the percentages of pelecypods, gastropods, decapods and serpulid worms in the sandfraction increase, the percentages of foraminifera and ostracods decrease; - the ratios of pelecypods to foraminifera and of decapods to ostracods increase; - the ratios of benthonic molluscs to planktonic molluscs (pteropods) and of benthonic foraminifera to planktonic foraminifera increase (except in core 1056 and 1179); - the ratio of planktonic molluscs (pteropods) to planktonic foraminifera increases; - the globigerinas without orbulinas increase, the orbulinas decrease in core 1056. Different settling velocities of these biogenic particles help in better understanding the results : the settling velocities, hence the equivalent hydrodynamic diameters, of orbulinas are smaller than those of other globigerinas, those of planktonic foraminifera are smaller than those of planktonic molluscs, those of planktonic molluscs are smaller than those of benthonic molluscs, those of pelecypods are smaller than those of gastropods. Bioturbation could not entirely distroy this “grain-size-stratification". Sorting has been stronger in the coarse layers than in the finer ones. As a cause variations in the supply of terrigenous material at constant strength of tidal currents is suggested. When much terrigenous material is supplied (large contents of fine grained fraction) the ... Other/Unknown Material Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science Indian ENVELOPE(52.093000,56.913333,27.516000,26.316667) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
GC GIK/IfG GIK01177 GIK01201 Gravity corer Gravity corer (Kiel type) IIOE - International Indian Ocean Expedition Indian Ocean Institute for Geosciences Christian Albrechts University Kiel IOE1056 KAL Kasten corer M1 M1_355B 01177-C M1_379 M1056D Meteor (1964) Persian Gulf SL |
spellingShingle |
GC GIK/IfG GIK01177 GIK01201 Gravity corer Gravity corer (Kiel type) IIOE - International Indian Ocean Expedition Indian Ocean Institute for Geosciences Christian Albrechts University Kiel IOE1056 KAL Kasten corer M1 M1_355B 01177-C M1_379 M1056D Meteor (1964) Persian Gulf SL Diester, Lieselotte Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf |
topic_facet |
GC GIK/IfG GIK01177 GIK01201 Gravity corer Gravity corer (Kiel type) IIOE - International Indian Ocean Expedition Indian Ocean Institute for Geosciences Christian Albrechts University Kiel IOE1056 KAL Kasten corer M1 M1_355B 01177-C M1_379 M1056D Meteor (1964) Persian Gulf SL |
description |
The sandfraction of the sediment was analysed in five cores, taken from 65 m water depth in the central and eastern part of the Persian Gulf. The holocene marls are underlayn by aragonite muds, which are probably 10-11,000 years old. 1. The cores could be subdivided into coarse grained and fine grained layers. Sorting is demonstrated by the following criteria: With increasing median values of the sandfraction - the fine grained fraction decreases within each core; - the median of each biogenic component, benthonic as well as planktonic, increases; - the median of the relict sediment, which in core 1179 was carried upward into the marl by bioturbation, increases; - the percentages of pelecypods, gastropods, decapods and serpulid worms in the sandfraction increase, the percentages of foraminifera and ostracods decrease; - the ratios of pelecypods to foraminifera and of decapods to ostracods increase; - the ratios of benthonic molluscs to planktonic molluscs (pteropods) and of benthonic foraminifera to planktonic foraminifera increase (except in core 1056 and 1179); - the ratio of planktonic molluscs (pteropods) to planktonic foraminifera increases; - the globigerinas without orbulinas increase, the orbulinas decrease in core 1056. Different settling velocities of these biogenic particles help in better understanding the results : the settling velocities, hence the equivalent hydrodynamic diameters, of orbulinas are smaller than those of other globigerinas, those of planktonic foraminifera are smaller than those of planktonic molluscs, those of planktonic molluscs are smaller than those of benthonic molluscs, those of pelecypods are smaller than those of gastropods. Bioturbation could not entirely distroy this “grain-size-stratification". Sorting has been stronger in the coarse layers than in the finer ones. As a cause variations in the supply of terrigenous material at constant strength of tidal currents is suggested. When much terrigenous material is supplied (large contents of fine grained fraction) the ... |
format |
Other/Unknown Material |
author |
Diester, Lieselotte |
author_facet |
Diester, Lieselotte |
author_sort |
Diester, Lieselotte |
title |
Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf |
title_short |
Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf |
title_full |
Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf |
title_fullStr |
Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf |
title_full_unstemmed |
Late pleistocene and holocene sedimentation in the central and eastern Persian Gulf |
title_sort |
late pleistocene and holocene sedimentation in the central and eastern persian gulf |
publisher |
PANGAEA |
publishDate |
1972 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.548411 https://doi.org/10.1594/PANGAEA.548411 |
op_coverage |
MEDIAN LATITUDE: 26.762333 * MEDIAN LONGITUDE: 55.679917 * SOUTH-BOUND LATITUDE: 26.316667 * WEST-BOUND LONGITUDE: 52.093000 * NORTH-BOUND LATITUDE: 27.516000 * EAST-BOUND LONGITUDE: 56.913333 * DATE/TIME START: 1965-04-11T00:00:00 * DATE/TIME END: 1965-04-14T00:00:00 |
long_lat |
ENVELOPE(52.093000,56.913333,27.516000,26.316667) |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Supplement to: Diester, Lieselotte (1972): Zur spätpleistozänen und holozänen Sedimentation im zentralen und östlichen Persischen Golf. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C8, 37-83 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.548411 https://doi.org/10.1594/PANGAEA.548411 |
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.548411 |
_version_ |
1809936060438806528 |