Geochemistry on rocks from the eastern Weddell Sea
Petrographie and geochemical investigations on ice-rafted debris along the continental margin of the eastern and southern Weddell Sea give additional information for modelling subglacial geology at the continental border region. From northeast to southwest five provinces with different petrographic...
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1988
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.884518 https://doi.org/10.1594/PANGAEA.884518 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.884518 2023-05-15T15:42:23+02:00 Geochemistry on rocks from the eastern Weddell Sea Oskierski, Wolfgang MEDIAN LATITUDE: -74.175000 * MEDIAN LONGITUDE: -25.132286 * SOUTH-BOUND LATITUDE: -77.800000 * WEST-BOUND LONGITUDE: -44.000000 * NORTH-BOUND LATITUDE: -70.500000 * EAST-BOUND LONGITUDE: -7.800000 1988-01-02 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.884518 https://doi.org/10.1594/PANGAEA.884518 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.884518 https://doi.org/10.1594/PANGAEA.884518 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Oskierski, Wolfgang (1988): Verteilung und Herkunft glazial-mariner Gerölle am Antarktischen Kontinentalrand des östlichen Weddellmeeres = Distribution and orgin of glaciomarine pebbles on the Antarctic continental margin of the Eastern Weddell Sea. Berichte zur Polarforschung = Reports on Polar Research, 47, 167 pp, https://doi.org/10.2312/BzP_0047_1988 AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Dataset 1988 ftpangaea https://doi.org/10.1594/PANGAEA.884518 https://doi.org/10.2312/BzP_0047_1988 2023-01-20T07:34:05Z Petrographie and geochemical investigations on ice-rafted debris along the continental margin of the eastern and southern Weddell Sea give additional information for modelling subglacial geology at the continental border region. From northeast to southwest five provinces with different petrographic and geochemical properties could be distinguished: The northeastern Province I is characterized by volcanic rocks, mainly basalts (>90 %). 0nly a small portion of clastic sedimentary rocks was recognized while metamorphic and plutonic rocks are almost lacking. Province II is still dominated by basaltic rocks (60 %), but there is a considerable increase in metamorphic (15 %) and clastic seedimentary rocks (25 %). Province III is typified by a variation in the occurrence of medium to high grade metamorphics (36 %) and a variety of different plutonic rocks (30 %). The portion of volcanic rocks decrease to 20 % whereas sedimentary rocks form a portion of 13 %. Almost equal portions of intermediate to acidic plutonic rocks, medium- to highgrade metamorphic rocks and clastic sedimentary rocks (28 %) characterize Province IV. Volcanic rocks occcur only in minor portions (15 %). Finally, Province V is dominated by the occurrence of sedimentary rocks (80 %). Besides clastic sedimentary rocks some calcarous rocks (e.g. trilobite-bearing limestones) have been found. Only minor numbers of volcanic (<10 %), magmatic (<5 %) and metamorphic rocks (<5 %) were observed. ff Dataset Berichte zur Polarforschung Polar Research Polarforschung Reports on polar research Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science Weddell Weddell Sea ENVELOPE(-44.000000,-7.800000,-70.500000,-77.800000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
spellingShingle |
AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Oskierski, Wolfgang Geochemistry on rocks from the eastern Weddell Sea |
topic_facet |
AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
description |
Petrographie and geochemical investigations on ice-rafted debris along the continental margin of the eastern and southern Weddell Sea give additional information for modelling subglacial geology at the continental border region. From northeast to southwest five provinces with different petrographic and geochemical properties could be distinguished: The northeastern Province I is characterized by volcanic rocks, mainly basalts (>90 %). 0nly a small portion of clastic sedimentary rocks was recognized while metamorphic and plutonic rocks are almost lacking. Province II is still dominated by basaltic rocks (60 %), but there is a considerable increase in metamorphic (15 %) and clastic seedimentary rocks (25 %). Province III is typified by a variation in the occurrence of medium to high grade metamorphics (36 %) and a variety of different plutonic rocks (30 %). The portion of volcanic rocks decrease to 20 % whereas sedimentary rocks form a portion of 13 %. Almost equal portions of intermediate to acidic plutonic rocks, medium- to highgrade metamorphic rocks and clastic sedimentary rocks (28 %) characterize Province IV. Volcanic rocks occcur only in minor portions (15 %). Finally, Province V is dominated by the occurrence of sedimentary rocks (80 %). Besides clastic sedimentary rocks some calcarous rocks (e.g. trilobite-bearing limestones) have been found. Only minor numbers of volcanic (<10 %), magmatic (<5 %) and metamorphic rocks (<5 %) were observed. ff |
format |
Dataset |
author |
Oskierski, Wolfgang |
author_facet |
Oskierski, Wolfgang |
author_sort |
Oskierski, Wolfgang |
title |
Geochemistry on rocks from the eastern Weddell Sea |
title_short |
Geochemistry on rocks from the eastern Weddell Sea |
title_full |
Geochemistry on rocks from the eastern Weddell Sea |
title_fullStr |
Geochemistry on rocks from the eastern Weddell Sea |
title_full_unstemmed |
Geochemistry on rocks from the eastern Weddell Sea |
title_sort |
geochemistry on rocks from the eastern weddell sea |
publisher |
PANGAEA |
publishDate |
1988 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.884518 https://doi.org/10.1594/PANGAEA.884518 |
op_coverage |
MEDIAN LATITUDE: -74.175000 * MEDIAN LONGITUDE: -25.132286 * SOUTH-BOUND LATITUDE: -77.800000 * WEST-BOUND LONGITUDE: -44.000000 * NORTH-BOUND LATITUDE: -70.500000 * EAST-BOUND LONGITUDE: -7.800000 |
long_lat |
ENVELOPE(-44.000000,-7.800000,-70.500000,-77.800000) |
geographic |
Weddell Weddell Sea |
geographic_facet |
Weddell Weddell Sea |
genre |
Berichte zur Polarforschung Polar Research Polarforschung Reports on polar research Weddell Sea |
genre_facet |
Berichte zur Polarforschung Polar Research Polarforschung Reports on polar research Weddell Sea |
op_source |
Supplement to: Oskierski, Wolfgang (1988): Verteilung und Herkunft glazial-mariner Gerölle am Antarktischen Kontinentalrand des östlichen Weddellmeeres = Distribution and orgin of glaciomarine pebbles on the Antarctic continental margin of the Eastern Weddell Sea. Berichte zur Polarforschung = Reports on Polar Research, 47, 167 pp, https://doi.org/10.2312/BzP_0047_1988 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.884518 https://doi.org/10.1594/PANGAEA.884518 |
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.884518 https://doi.org/10.2312/BzP_0047_1988 |
_version_ |
1766375764704362496 |