Stratigraphy, geochemistry and origin of Silurian black graptolitic shales of the Carnic Alps.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F99%3A00000103" target="_blank" >RIV/00025798:_____/99:00000103 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Stratigraphy, geochemistry and origin of Silurian black graptolitic shales of the Carnic Alps.

Original language description

The distribution of major and trace elements in Silurian graptolitic shales of the Carnic Alps suggests important changes of depositional environment. With the beginning of the Silurian transgression and progressing subsidence, mostly chemically mature "siliceous" shales with generally higher Zr values were deposited in normal marine environment. The character of sedimentation has rapidly changed during Wenlock when chemically less mature calcareous shales together with carbonates dominated. The termination of basinal subsidence in Upper Silurian (Ludlow-Pridoli), has resulted in the deposition of chemically well mature graptolitic shales. Sulphidic graptolitic shales were mostly deposited in restricted marine environment (low O2 concentrations) with local periods of inhospitable bottom conditions (little or no O2 was present and H2S may have been continually or intermittently

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

DB - Geology and mineralogy

OECD FORD branch

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Project

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Continuities

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Publication year

1999

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Abhandlungen der Geologischen Bundesanstalt

ISBN

3-85316-004-2

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

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Publisher name

GBA Austria

Place of publication

Wien

Event location

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Event date

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Type of event by nationality

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UT code for WoS article

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