BIOSTRATIGRAPHY OF THE CARBONIFEROUS DEPOSITS IN THE RAMSHEH AREA-SE OF ISFAHAN BASED ON CONODONTS

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BAHRAMI ALI; YAZDI MAHDI

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Journal: RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE" Year:2008 | Volume:29 | Issue:3 (GEOLOGY) Page(s): 145-156

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Title

BIOSTRATIGRAPHY OF THE CARBONIFEROUS DEPOSITS IN THE RAMSHEH AREA-SE OF ISFAHAN BASED ON CONODONTS

Author(s)

BAHRAMI ALI | YAZDI MAHDI | Issue Writer Certificate

Keywords

CARBONIFEROUSQ3

CONODONTSQ3

TOURNASIANQ3

BASHKIRIANQ3

Abstract

The studied section is located in Central Iran, in 35km southeast of Shahreza in Ramsheh area. The Ramsheh area structurally belongs to the southwest Central Iran including the Shahreza- Abadeh- Hambast belt, which is separated by faults from the Gavkhoni- Abarquh depression to the northeast and from the Yazdekhast-Dehbid metamorphism belt to the southeast.The CARBONIFEROUS deposits with 620m thickness including Shishtu2 and sardar Formations, the former (Shishtu2 Fm), mainly consists of 315m dark to gray limestones with dolomites and alternation of thin to medium bedded platy shales. According to Conodont funa the following Conodozones are recognized: 1-? expansa-sulcata zone 2-duplicate zone 3-typicus zone 4-ancuralis-latus zone The upper part (Sradar Fm.) with 298m thickness consists of carbonate-terrigenous deposits including limestones, sandy limestones conglomerate and oolitic limestones with conodont funa. The following conodozones are recognized from this part: 1-muricatus zone 2-noduliferous zone 3-sinutus-minutus zone 4- sinusus-delicatus zone 5-?elongatus zone The section checked with regard to Conodont biostratigraphy and depositional environment. According to the above mentioned Conodozones, the CARBONIFEROUS deposits in Asadabad section dated from TOURNASIAN to Moscovion in age.The topmost of the section with the Vajnan Formation have parallel disconformity and the lower boundary is covered. The upper located among rocks of late CARBONIFEROUS is probably related to global variation of sea level due to glacial epoch (Late CARBONIFEROUS) in vast area of Gondwanan Supercontinent.

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APA: Copy

BAHRAMI, ALI, & YAZDI, MAHDI. (2008). BIOSTRATIGRAPHY OF THE CARBONIFEROUS DEPOSITS IN THE RAMSHEH AREA-SE OF ISFAHAN BASED ON CONODONTS. RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", 29(3 (GEOLOGY)), 145-156. SID. https://sid.ir/paper/55920/en

Vancouver: Copy

BAHRAMI ALI, YAZDI MAHDI. BIOSTRATIGRAPHY OF THE CARBONIFEROUS DEPOSITS IN THE RAMSHEH AREA-SE OF ISFAHAN BASED ON CONODONTS. RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE"[Internet]. 2008;29(3 (GEOLOGY)):145-156. Available from: https://sid.ir/paper/55920/en

IEEE: Copy

ALI BAHRAMI, and MAHDI YAZDI, “BIOSTRATIGRAPHY OF THE CARBONIFEROUS DEPOSITS IN THE RAMSHEH AREA-SE OF ISFAHAN BASED ON CONODONTS,” RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", vol. 29, no. 3 (GEOLOGY), pp. 145–156, 2008, [Online]. Available: https://sid.ir/paper/55920/en

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