Late oligocene-early miocene benthic foraminifera and biostratigraphy of the Asmari Formation south Yasuj, north-central Zagros basin, Iran

• Autores: Sara Hakimzadeh, Ali Seyrafian
• Localización: Carbonates and Evaporites, ISSN 0891-2556, Vol. 23, Nº. 1, 2008, págs. 1-10
• Idioma: inglés
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• Resumen

  • A total of 19 genera and 34 species of benthic foraminifera were identified in the Asmari Formation from a stratigraphic section located south Yasuj; north-central Zagros, Iran. The age of the Asmari Formation at the studied section is Oligocene (Rupelian-Chattian) and Early Miocene (Aquitanian-Burdigalian). Age was determined by the occurrence ofNummulites vascus-Nummulites fichteli; Eulepidina-Nephrolepidina-Nummulites; Miogypsinoides-Archaias-Valvulinid; and Borelis melo group-Meandropsina iranica assemblage zones. AGlobbigerina spp. assemblage zone also occurs within theBorelis melo group-Meandropsina iranica assemblage zone west northwest of the study area.