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A facies geological test of stable isotope interpretation of the Upper Permian depositional environment in West Spitsbergen
Author(s) -
Malkowski Krzysztof,
Gruszczyński Michal,
Hoffman Antoni
Publication year - 1991
Publication title -
terra nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.353
H-Index - 89
eISSN - 1365-3121
pISSN - 0954-4879
DOI - 10.1111/j.1365-3121.1991.tb00206.x
Subject(s) - geology , sedimentary depositional environment , permian , facies , paleontology , carbonate , sequence (biology) , transgressive , calcareous , stable isotope ratio , isotopes of carbon , geochemistry , isotope , structural basin , physics , quantum mechanics , materials science , biology , metallurgy , genetics
Lithofacies analysis of two transgressive sequences within the Kapp Starostin Formation (Upper Permian, West Spitsbergen), indicates considerable differences in seawater chemistry between their depositional environments. The onshore part of the sequence represented in the Vøringen and Svenskeegga Members is largely calcareous, with allochthonous and corroded siliceous materials. In contrast, in the equivalent sequence within the Hovtinden Member, silica is ubiquitous whereas carbonate materials include mainly corroded bioclasts. These differences are consistent with predictions of the oceanographic model of ‘overfed’ and ‘hungry’ oceans proposed previously on the basis of carbon and oxygen stable isotope analysis.