biostratigraphy of the asmari formation, burujen area, iran
نویسندگان
چکیده
lithological characteristics of the asmari formation in the burujen area are: pelagic foraminifera wackestone-packstone; bentic foraminifera echinid packstone; bentic foraminifera corallinaceapackstone; coral boundstone and echinid corallinacea packstone to grainstone; corallinacea boundstone; corallinacea bryozoa packstone; rniliolid echinid wackestone; and bioclastic wackestone. the examined outcrops at the buldaji, chaghakhor, and tang-e kloreh locations are upper oligocene, lower miocene (aquitanian) and lower miocene (burdigalian) in age, respectively. age was determined by the occurrence of lepidocyclina (eu1epidina)-lepidocyclina (nephro1epidina)-nummulites,m iogypsina-lepidocyclina and neoalveolina melo group assemblage zones. consequently, the outcrops at the buldaji, chaghakhor and tang-e kloreh locations are synonymous to lower, middle and upper asmari formation.
منابع مشابه
BIOSTRATIGRAPHY OF THE ASMARI FORMATION, BURUJEN AREA, IRAN
Lithological characteristics of the Asmari Formation in the Burujen area are: pelagic foraminifera wackestone-packstone; bentic foraminifera echinid packstone; bentic foraminifera corallinaceapackstone; coral boundstone and echinid corallinacea packstone to grainstone; corallinacea boundstone; corallinacea bryozoa packstone; rniliolid echinid wackestone; and bioclastic wackestone. The exami...
متن کاملbiostratigraphy and paleoecology of the asmari formation at nil anticline area (north-east of dehdasht)
the asmari formation at nil anticline area has been studied in order to determine faunal assemblages, the age and the paleoecology. paleontological and biostratigraphical studies led to the identification of 5 faunal assemblages. as a result, the age of the asmari formation in this section, with 291m thickness, is rupelian/chattian-burdigalian. extension of the large benthic foraminifera sugges...
متن کاملTextural pattern of secondary gypsum in the Basal Anhydrite of the Asmari Formation, SW Iran
The Oligocene–Miocene deposits of the Asmari Formation are located in SW of the Zagros Mountains of Iran. The lower part of the Asmari Formation consists of an evaporite bed that is termed Basal Anhydrite. Seven sections from four different anticlines were selected and sampled for petrographic and mineralogical analyses .The petrographical examinations were carried out using an optical polarize...
متن کاملNew approach on biostratigraphy of Permian deposits of Jamal formation in Bagh Vang section, Shirgesht area (central Iran)
Bagh Vang Section is located at about 45 km to the Northwest of Tabas and South of Shirgesht areas. In Bagh Vang Section, the Permian deposits of the Jamal Formation with a thickness of 270 m are underlain by the Sardar Formation disconformably. The formation is also transitionally and conformably overlain by Lower Triassic deposits of Sorkh Shale Formation. A total of 124 rock samples have bee...
متن کاملCalcareous nannofossils biostratigraphy of the Campanian-Danian interval, Gurpi Formation in the Zagros Basin, SouthWest Iran
This study presents calcareous nannofossils biostratigraphy of the Campanian‒Danian interval at the Gurpi Formation in the southwest of Ilam Province, in the Zagros Basin. The studied sequence of the Gurpi Formation mainly consists of marly shale and limestones. The thickness of Gurpi Formation was measured as approximately 230 m. Forty-five species belonging to twenty-eight genera were recorde...
متن کاملpricing unemployment insurance : the case of iran
employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...
منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
journal of sciences islamic republic of iranجلد ۷، شماره ۱، صفحات ۰-۰
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023