Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ...
Metasediments in the three early Palaeozoic Ross orogenic terranes in northern Victoria Land and Oates Land (Antarctica) are geochemically classified as immature litharenites to wackes and moderately mature shales. Highly mature lithotypes with Chemical Index of Weathering values of >=95 are typi...
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ftdatacite:10.1594/pangaea.704725 2024-09-15T17:41:10+00:00 Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ... Henjes-Kunst, Friedhelm Schüssler, Ulrich 2003 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.704725 https://doi.pangaea.de/10.1594/PANGAEA.704725 en eng PANGAEA Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 ORDINAL NUMBER LATITUDE LONGITUDE Sample comment Sample code/label Lithologic unit/sequence Area/locality Comment Silicon dioxide Titanium dioxide Aluminium oxide Iron oxide, Fe2O3 Manganese oxide Magnesium oxide Calcium oxide Sodium oxide Potassium oxide Phosphorus pentoxide Sulfite Loss on ignition Barium Cerium Cobalt Chromium Gallium Lanthanum Niobium Nickel Rubidium Scandium Strontium Thorium Vanadium Yttrium Zinc Zirconium dataset Supplementary Dataset Dataset 2003 ftdatacite https://doi.org/10.1594/pangaea.704725 2024-08-01T10:54:23Z Metasediments in the three early Palaeozoic Ross orogenic terranes in northern Victoria Land and Oates Land (Antarctica) are geochemically classified as immature litharenites to wackes and moderately mature shales. Highly mature lithotypes with Chemical Index of Weathering values of >=95 are typically absent. Geochemical and Rb-Sr and Sm-Nd isotope results indicate that the turbiditic metasediments of the Cambro-Ordovician Robertson Bay Group in the eastern Robertson Bay Terrane represent a very homogeneous series lacking significant compositional variations. Major variations are only found in chemical parameters which reflect differences in degree of chemical weathering of their protoliths and in mechanical sorting of the detritus. Geochemical data, 87Sr/ 86Sr t=490 Ma ratios of 0.7120 - 0.7174, epsilonNd, t=490 Ma values of -7.6 to -10.3 and single-stage Nd-model ages of 1.7 - 1.9 Ga are indicative of an origin from a chemically evolved crustal source of on average late Palaeoproterozoic formation age. ... : Position of sample G8-39b is estimated from map ... Dataset Antarc* Antarctica Oates Land Victoria Land DataCite |
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Open Polar |
collection |
DataCite |
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ftdatacite |
language |
English |
topic |
ORDINAL NUMBER LATITUDE LONGITUDE Sample comment Sample code/label Lithologic unit/sequence Area/locality Comment Silicon dioxide Titanium dioxide Aluminium oxide Iron oxide, Fe2O3 Manganese oxide Magnesium oxide Calcium oxide Sodium oxide Potassium oxide Phosphorus pentoxide Sulfite Loss on ignition Barium Cerium Cobalt Chromium Gallium Lanthanum Niobium Nickel Rubidium Scandium Strontium Thorium Vanadium Yttrium Zinc Zirconium |
spellingShingle |
ORDINAL NUMBER LATITUDE LONGITUDE Sample comment Sample code/label Lithologic unit/sequence Area/locality Comment Silicon dioxide Titanium dioxide Aluminium oxide Iron oxide, Fe2O3 Manganese oxide Magnesium oxide Calcium oxide Sodium oxide Potassium oxide Phosphorus pentoxide Sulfite Loss on ignition Barium Cerium Cobalt Chromium Gallium Lanthanum Niobium Nickel Rubidium Scandium Strontium Thorium Vanadium Yttrium Zinc Zirconium Henjes-Kunst, Friedhelm Schüssler, Ulrich Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ... |
topic_facet |
ORDINAL NUMBER LATITUDE LONGITUDE Sample comment Sample code/label Lithologic unit/sequence Area/locality Comment Silicon dioxide Titanium dioxide Aluminium oxide Iron oxide, Fe2O3 Manganese oxide Magnesium oxide Calcium oxide Sodium oxide Potassium oxide Phosphorus pentoxide Sulfite Loss on ignition Barium Cerium Cobalt Chromium Gallium Lanthanum Niobium Nickel Rubidium Scandium Strontium Thorium Vanadium Yttrium Zinc Zirconium |
description |
Metasediments in the three early Palaeozoic Ross orogenic terranes in northern Victoria Land and Oates Land (Antarctica) are geochemically classified as immature litharenites to wackes and moderately mature shales. Highly mature lithotypes with Chemical Index of Weathering values of >=95 are typically absent. Geochemical and Rb-Sr and Sm-Nd isotope results indicate that the turbiditic metasediments of the Cambro-Ordovician Robertson Bay Group in the eastern Robertson Bay Terrane represent a very homogeneous series lacking significant compositional variations. Major variations are only found in chemical parameters which reflect differences in degree of chemical weathering of their protoliths and in mechanical sorting of the detritus. Geochemical data, 87Sr/ 86Sr t=490 Ma ratios of 0.7120 - 0.7174, epsilonNd, t=490 Ma values of -7.6 to -10.3 and single-stage Nd-model ages of 1.7 - 1.9 Ga are indicative of an origin from a chemically evolved crustal source of on average late Palaeoproterozoic formation age. ... : Position of sample G8-39b is estimated from map ... |
format |
Dataset |
author |
Henjes-Kunst, Friedhelm Schüssler, Ulrich |
author_facet |
Henjes-Kunst, Friedhelm Schüssler, Ulrich |
author_sort |
Henjes-Kunst, Friedhelm |
title |
Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ... |
title_short |
Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ... |
title_full |
Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ... |
title_fullStr |
Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ... |
title_full_unstemmed |
Geochemistry of metasedimentary units of the Cambro-Ordovician Ross Orogen in North Victoria Land and Oates Land, Antarctica ... |
title_sort |
geochemistry of metasedimentary units of the cambro-ordovician ross orogen in north victoria land and oates land, antarctica ... |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://dx.doi.org/10.1594/pangaea.704725 https://doi.pangaea.de/10.1594/PANGAEA.704725 |
genre |
Antarc* Antarctica Oates Land Victoria Land |
genre_facet |
Antarc* Antarctica Oates Land Victoria Land |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.704725 |
_version_ |
1810487300226809856 |