Mesozoic radiolarians from the Kermanshah formation (Iran)

被引：27

作者：

Gharib, Farzad

De Weyer, Patrick ^{[1
]}

机构：

[1] Museum Natl Hist Nat, F-75005 Paris, France

来源：

COMPTES RENDUS PALEVOL | 2010年 / 9卷 / 05期

关键词：

Radiolarite; Radiolarian; Tethys; Mesozoic; Iran; Kermanshah; Monsoon; SANANDAJ-SIRJAN ZONE; OMAN MOUNTAINS; SCHISTES LUSTRES; HAWASINA NAPPES; PERMIAN AGE; EVOLUTION; GREECE; DATATION; DATINGS; BELT;

D O I：

10.1016/j.crpv.2010.06.003

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

Radiolarites are one of the characteristic fades of the Tethyan Mesozoic realm. In western Iran, the Kermanshah radiolarites belong to a vast siliceous complex characteristic of the Mesozoic rocks of the Tethys region. These siliceous sequences are associated either with ophiolitic outcrops, which allow us to date them, or to sedimentary sequences that were deposited in a long and narrow basin in an intertropical zone, which benefited from the nutritional content of upwellings driven by monsoons. This basin extended from the Hawasina series (Oman) in the south, continued northward into the series of Pichakun (South Iran) and Kermanshah (western Iran) and ended with the Kocali series (Turkey). Radiolarites were dated in these different parts of the basin except in Kermanshah. The present work fills this gap and reveals that several levels can be dated by radiolarians from the Lower Pliensbachian, for the oldest ones, up until the Turonian for the youngest. (C) 2010 Academia des sciences. Published by Elsevier Masson SAS. All rights reserved.

引用

页码：209 / 219

页数：11

共 45 条

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