Writers : Saffar,Ahmad;Mousavi, Mohammad Javad; Torshizian, Habib Allah; Javanbakht, Mohammad
Refference : The first international applied geological congress; Department of geology Islamic azad university- Mashhad
Publishing Year : 2010

Abstract :

The age of Tirgan Formation is early cretaceous (Barremian-Aptian) and is one of the calcareous formations in Kopet-dagh sedimentary basin (kalantari, 1969). This formation is mainly formed from orbitolina oolitic limestone which is overlain on the silissiclastic Shurijeh Formation and is underlain by shale-marly Sarcheshmeh Formation (Afshar-e-harb, 1994). Tirgan Formation in the studied area is located in 59 53 19 East longitude and 36 44 40 North latitude in the South east of Kalat-e-Naderi, Iran. The aim of this study is investigation on the processes which occurred after sedimentation in Tirgan Formation in South east of Kalat-e-Naderi. Diagenesis process is related to different agents which occurred in the marine environments near the surface (meteoric) and downward to deep burial environment (Taker and Write, 1990). Diagenetic processes in carbonate rocks consists of 6 main processes, generally: cementation, micritization, neomorphism, dissolution, compaction and dolomitization (Taker and Write, 1990; Taker and Beterst, 1990; Taker, 2001; Ehrenberg et al, 2002).

Subject List : diagenetic