First evidence of Jurassic-Early Cretaceous Radiolarian fauna in Ab-Band area, High Zagros, South-west Iran

Category Paleontology and Stratigraphy
Group GSI.IR
Location The 25 Symposium of Geosciences
Author Seyed Ahmad BABAZADEH
Holding Date 01 July 2007



The Ab-Band area is located in the High Zagros (west Iran۱:country-region>۱:place>). Two sections (AA & CC) are examined in this area. The red to gray chert facies includes the radiolarian fauna (۸۰% Radiolaria) and turbidite facies is composed by calcarenite, pel-biomicrosparite with nodular radiolarian chert and argillaceous limestone bearing benthic foraminifera. Two radiolarian fauna such as Holocryptocanium aff. barbui, Stichocapsa cf. robusta, Archaeodictyomitra aff. apiarium, Archaeodictyomitra sp., Cryptamphorella sp and etc. are occured at lower part of section AA and throughout of section CC. The benthic marine fauna include Pseudocyclamina sp., textularids, miliolids and echinoids.

Key words: Chert facies, Turbidite facies, Ab-Band area, High Zagros, Iran۱:country-region>۱:place>


tags: QAZVIN