مقاله


کد مقاله : 13961228103334101384

عنوان مقاله : Biostratigraphy and microfacies of the Asmari Formation in Lar anticline (northeast of Gachsaran): biostratigraphical correlation

نشریه شماره : 14 Autumn-Winter 2017

مشاهده شده : 117

فایل های مقاله :


نویسندگان

  نام و نام خانوادگی پست الکترونیک مرتبه علمی مدرک تحصیلی مسئول
1 Ali Seyrafian seyrafia@sci.ui.ac.ir Professor PhD
2 Meysam Barari Kharkeshi Meysamomeysam.org@gmail.com Graduate M.Sc
3 Hossein Vaziri-Moghaddam hvaziri@sci.ui.ac.ir Professor PhD
4 Roohollah Shabafrooz R.shab2003@Gmail.com - PhD

چکیده مقاله

The Asmari Formation at the Lar anticline, located 77 km northeast of Gachsaran city, comprised 361 meters in thickness. In the present study, biostratigraphy and microfacies of the Asmari Formation at the Lar anticline (northeast of Gachsaran city) is investigated. Based on foraminiferal distribution, 25 genera and 21 species have been identified and four biozones: 1. Lepidocyclina – Operculina – Ditrupa assemblage zone, 2. Archaias asmaricus – Archaias hensoni – Miogypsinoides complanatus assemblage zone, 3. Indeterminate zone, 4. Borelis melo curdica – Borelis melo melo assemblage zone, representing Oligocene (Chattian) to Early Miocene (Aquitanian - Burdigalian) are introduced, respectively. 12 microfacies related to an open marine and lagoon (semi-closed and closed) environments of homoclinal ramp setting are present.