Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50
Mineralogical, morphological and isotopic (Rb-Sr and K-Ar) determinations were made on some detrital smectites of Palaeocene and Cenomanian ages from DSDP. drillings in the Atlantic Ocean. These minerals are not inert in their depositional environment; authigenic laths grow on detrital sheets with s...
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1984
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.707364 2023-05-15T17:29:54+02:00 Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50 Clauer, Norbert Giblin, Patrick Lucas, Jacques MEDIAN LATITUDE: 36.532400 * MEDIAN LONGITUDE: -28.366367 * SOUTH-BOUND LATITUDE: 31.028700 * WEST-BOUND LONGITUDE: -64.249000 * NORTH-BOUND LATITUDE: 47.381700 * EAST-BOUND LONGITUDE: -9.198300 * DATE/TIME START: 1975-07-24T00:00:00 * DATE/TIME END: 1976-09-13T00:00:00 1984-11-14 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.707364 https://doi.org/10.1594/PANGAEA.707364 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.707364 https://doi.org/10.1594/PANGAEA.707364 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Clauer, Norbert; Giblin, Patrick; Lucas, Jacques (1984): Sr and Ar isotope studies of detrital smectites from the Atlantic Ocean (D.S.D.P., Legs 43, 48 and 50). Isotope Geoscience, 2(2), 141-151, https://doi.org/10.1016/0009-2541(84)90185-2 43-386 48-400A 50-415A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg43 Leg48 Leg50 North Atlantic/BASIN North Atlantic/CONT RISE Dataset 1984 ftpangaea https://doi.org/10.1594/PANGAEA.707364 https://doi.org/10.1016/0009-2541(84)90185-2 2023-01-20T07:31:16Z Mineralogical, morphological and isotopic (Rb-Sr and K-Ar) determinations were made on some detrital smectites of Palaeocene and Cenomanian ages from DSDP. drillings in the Atlantic Ocean. These minerals are not inert in their depositional environment; authigenic laths grow on detrital sheets with sharp borders. This authigenesis could occur slightly after deposition in a closed system, for some of these smectites. It has been tentatively quantified by the Rb-Sr and K-Ar isotopic methods, which seem also well suited to evaluate the chemical extent of this authigenesis. At least, no preferential loss of 40Ar vs. 87Sr could be detected in the minerals, even in those which are smaller than 0.2 ?m. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-64.249000,-9.198300,47.381700,31.028700) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
43-386 48-400A 50-415A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg43 Leg48 Leg50 North Atlantic/BASIN North Atlantic/CONT RISE |
spellingShingle |
43-386 48-400A 50-415A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg43 Leg48 Leg50 North Atlantic/BASIN North Atlantic/CONT RISE Clauer, Norbert Giblin, Patrick Lucas, Jacques Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50 |
topic_facet |
43-386 48-400A 50-415A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg43 Leg48 Leg50 North Atlantic/BASIN North Atlantic/CONT RISE |
description |
Mineralogical, morphological and isotopic (Rb-Sr and K-Ar) determinations were made on some detrital smectites of Palaeocene and Cenomanian ages from DSDP. drillings in the Atlantic Ocean. These minerals are not inert in their depositional environment; authigenic laths grow on detrital sheets with sharp borders. This authigenesis could occur slightly after deposition in a closed system, for some of these smectites. It has been tentatively quantified by the Rb-Sr and K-Ar isotopic methods, which seem also well suited to evaluate the chemical extent of this authigenesis. At least, no preferential loss of 40Ar vs. 87Sr could be detected in the minerals, even in those which are smaller than 0.2 ?m. |
format |
Dataset |
author |
Clauer, Norbert Giblin, Patrick Lucas, Jacques |
author_facet |
Clauer, Norbert Giblin, Patrick Lucas, Jacques |
author_sort |
Clauer, Norbert |
title |
Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50 |
title_short |
Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50 |
title_full |
Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50 |
title_fullStr |
Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50 |
title_full_unstemmed |
Chemical composition and dated ages of detrital smectites in sediments at DSDP Legs 43, 48 and 50 |
title_sort |
chemical composition and dated ages of detrital smectites in sediments at dsdp legs 43, 48 and 50 |
publisher |
PANGAEA |
publishDate |
1984 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.707364 https://doi.org/10.1594/PANGAEA.707364 |
op_coverage |
MEDIAN LATITUDE: 36.532400 * MEDIAN LONGITUDE: -28.366367 * SOUTH-BOUND LATITUDE: 31.028700 * WEST-BOUND LONGITUDE: -64.249000 * NORTH-BOUND LATITUDE: 47.381700 * EAST-BOUND LONGITUDE: -9.198300 * DATE/TIME START: 1975-07-24T00:00:00 * DATE/TIME END: 1976-09-13T00:00:00 |
long_lat |
ENVELOPE(-64.249000,-9.198300,47.381700,31.028700) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Clauer, Norbert; Giblin, Patrick; Lucas, Jacques (1984): Sr and Ar isotope studies of detrital smectites from the Atlantic Ocean (D.S.D.P., Legs 43, 48 and 50). Isotope Geoscience, 2(2), 141-151, https://doi.org/10.1016/0009-2541(84)90185-2 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.707364 https://doi.org/10.1594/PANGAEA.707364 |
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.707364 https://doi.org/10.1016/0009-2541(84)90185-2 |
_version_ |
1766125135890219008 |