An investigation on the relation between dolomitization and microfacieses of carbonate rocks in Lower Cretaceous in Gushfil (South west of Isfahan)

Subject Areas :

Tahereh Salimi ¹ (کارشناس ارشد دانشگاه آزاد اسلامی واحد شهر مجلسی اصفهان)
علی خان Nasre Esfahani ² (استادیار دانشکده علوم زمین دانشگاه آزاد اسلامی واحد خوراسگان اصفهان)
عبدالحسین Kagazian ³ (استادیار دانشکده علوم زمین دانشگاه آزاد اسلامی واحد خوراسگان)
واچیک Hairapian ⁴ (استادیار دانشکده علوم زیمن دانشگاه آزاد اسلامی واحد خوراسگان)

Received: 2016-08-25 Accepted : 2016-08-25 Published : 2014-06-22

Keywords: dolomite, micro facies, Gushfyl, Lower Cretaceous,

Abstract :

Dolomite units of study based on Petrography contains five groups very fine to finely crystalline anhedraldolomites, finely to medium crystalline euhedral dolomites, medium crystalline subhedral dolomites, medium tocoarsely crystalline anhedral dolomites (saddle) and coarsely crystalline planar-C dolomites (cement dolomite).Studing on pervasive dolomitization express that dolomite sediment has been not happened in one stage but thisphenomena has been happened in long time. MicroFacies of study based on white card contains: Ooidpackstone/grainstone, milliolida mudstone/ wackstone, mudstone, mulluska mudstone/wackstone, orbitolinamudstone/wackstone, pelloid packstone/grainstone, ooid wackstone. These observations can explain thatdiagenesis in section of study has been act vastly.