Discovery of Middle Jurassic (Bajocian) Radiolaria from the sedimentary cover of the Vedi ophiolite (Lesser Caucasus, Armenia)

Details

Serval ID
serval:BIB_8A35C38DC987
Type
Article: article from journal or magazin.
Collection
Publications
Title
Discovery of Middle Jurassic (Bajocian) Radiolaria from the sedimentary cover of the Vedi ophiolite (Lesser Caucasus, Armenia)
Journal
Comptes rendus Palevol
Author(s)
Danelian T., Asatryan G., Sosson M., Person A., Sahakyan L., Galoyan G.
ISSN
1631-0683
Publication state
Published
Issued date
2008
Volume
7
Pages
327-334
Abstract
The Vedi ophiolite, situated southeast of Yerevan (Armenia), represents part of the Neotethyan oceanic lithosphere preserved in the Lesser Caucasus. This ophiolite unit constitutes a large tectonic klippe, a result of obduction during the Upper Cretaceous (Coniacian-Santonian). Relatively well-preserved Radiolaria extracted from radiolarites overlying ophiolitic lavas along the Vedi River consist of Middle Jurassic (Bajocian, U.A.Z. 3-4) species, typical of the Tethyan tropical bioprovince. Assemblages are dominated by Nassellaria and characterised by the presence of species Cyrtocapsa mastoidea, Hexasaturnalis hexagonus, L,axtorum (?) hichioense, Stichocapsa japonica and Striatojaponocapsa plicarum: s.l. This microfauna provides evidence for the oldest age available so far for the sedimentary cover of the Vedi ophiolite.
Create date
18/10/2012 19:44
Last modification date
20/08/2019 14:49
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