First record of trace fossils from the Oxfordian Argiles rouges de Kheneg Formation (Tiaret, northwestern Algeria)

Autor:	Mourad Belaid, Olev Vinn, Amine Cherif, Mohammed Nadir Naimi
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Upper shoreface biology Helminthopsis Geochemistry Trace fossil biology.organism_classification Deep water Oxfordian Kheneg Algeria Offshore Chondrite Facies General Earth and Planetary Sciences Submarine pipeline Geology General Environmental Science
Zdroj:	Geologia Croatica Volume 73 Issue 2
ISSN:	1333-4875 1330-030X
Popis:	Three main facies associations FA-3 to FA occur in the Oxfordian Argiles rouges de Kheneg Formation in northwestern Algeria. They correspond respectively to the deeper part of a mixed siliciclastic-carbonate shelf, upper shoreface and offshore transition-lower offshore. The trace fossil association of the Argiles rouges de Kheneg Formation contains fifteen ichnogenera and is moderately diverse for the Upper Jurassic. The formation contains diverse and abundant deep water or dominantly deep water trace fossils (i.e. Belorhaphe, Chondrites, Helminthopsis, Nereites, Megagrapton). They indicate that a part of the formation was deposited in offshore transition to lower offshore environments.
Databáze:	OpenAIRE
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