میکروبیواستراتیگرافی سازند قم درمقاطع تیغه رضا آباد وفتح آباد غرب واقع درناحیه آران، ایران مرکزی

Abstract:

Qom۱:place>۱:city> formation, to age Oligocene until Miocene is one of the lithostratigraphy of the centeral Iran۱:place>۱:country-region>. For many reasons, especially lithology kind of alluvial one and the paleo-ecology and the most important of all the hydrocarbon sedimentaries are the best on that we can compare them with Asmry formation in the Zagros. That saraje, Alborz and Aran's aim are the best sign for this corolation.

These simellarities cause that Qom۱:place>۱:city> formation would study exactly because of the aspect of the aspect of  hydrocarbon suplies. Also it has such an economical power that we can use it for expanding the oil Aim of Iran.

So, the examination of the hydrocarbonic power of this formation in all of the conditions would related to the work of Iran۱:place>۱:country-region> oil company and the other branch of it. That some part of it are located in Aran (Tighe Reza Abad and the Fath Abad West by studying the ۲۹۰ sample of these two section for the first time it prove that we can recognize the ۳ Biozones in the section of Tighe Reza Abad the following :
۱. Miogypsinoides dehaarti (vlerk), ۱۹۲۴ & peneroplis evolutus Henson, ۱۹۵۰ and
۲. Miogypsinoides complantus schlumberger , ۱۹۰۰ & Globorotalia kugleri , Bolli and
۳. Neoalveolina melocurdica zone # ۹۷,  (wynd ۱۹۶۵)

and ۲ Biozones in the section of the Fath Abad west the following:

۱. Eulepidina dilatata Michelotti, ۱۸۶۷ & Eulepidina elephanta Lemione and Douvill , ۱۹۰۴.  and

 ۲. Globorotalia cf.kuglri Bolli & Astrigerina cf. rotula, (Kaufmann et,vars ۱۸۶۷).

From different aspects these are compareable with the Biozone's in the Zagros.

The simellarrity of these Biozones that we say and the simellarity of the invironments and the alluvial base kind of this formation would power this possibility that Oligocene sea to Miocene of the zagros are expanded until the west part of ecnteral Iran.

This ascertainment would finally show the close relation between the aim the Zagros and the centeral Iran۱:place>۱:country-region> in the time that sayed.

کلید واژه ها: اصفهان