Larger Benthic Foraminifera from the Paleocene Sediments in the Chehel-Kaman Formation, North-Eastern Iran

• 作者: Batool Rivandi Seyed Mohammad Ali Moosavizadeh
• 来源期刊: 地质学期刊(英文)
• 学科: 医学
• 关键词: Chehel-Kaman Kopet-Dagh FORAMINIFERA Paleocene Ranikothalia sindensis PARTIAL ZONE
• 年，卷（期）: 2015,（4）
• 页码范围: 224-229
• 页数: 6页
• 分类号: R73

摘要

This study is the micropaleontological investigation of the Chehel-Kaman Formation of Paleocene age from Kopet-Dagh basin, NE of Iran. Thirty three species of diagnostic benthic foraminifers belonging to genera?Miscellanea,Operculina,?Lockhartia,?Rotalia,?Akbarina,?Pseudocuvillerina,?Smoutina,Davisina,?Idalina,?Valvulina,?Laffitteina,?and?Ranikothalia?are recorded based on detailed petrographic analysis. The rocks are entirely shallow marine in rigin with biotic assemblages confirming Chehel-Kaman Limestone of the Paleocene age. The analyses of benthic foraminifers suggest that the deposition of the Paleogene sequence occurs in warm and shallow marine environments. In this paper?Ranikothalia sindensis?partial zone was reported in association withMiscellanea miscella,?M. juliettae?and?M. yvettae.