Writers : Khatib,Mohammad Mahdi
Refference : The 19th Symposium on Geoscience;Tehran
Publishing Year : 1379

Abstract :
Activation of right lateral strike – slip Nehbandan fault system in east of Iran produced the several shear zones in rock unit, specialty ophiolit melange. Open space in this shear zones were suitable for mineralization with vine structure. Vine structure of magnesite deposit in east of Iran include of three patterns : romboidry, amigdaloidal and sigmoidal. In Chah _ khoo Ghanbar region the magnesite vain are setting in serpentenit rocks and effected by active compression shear zone, then deformed to buddin form in tow dimension parallel the strike and dip line of vines. This process was changed the thickness of vine in the surface and underground. Brittle behavior of neogen Conglomerate in the Hoze _ sefide area induced the open space for deposition the magnesits vine around the fault block. Semi _ Brittle behavior of pyroclastic rock in Chahkandook area provided amigdaloidal space for magnesite deposition. Reactivated the shear zones, were sheared, rotated and displaced the magnesite vein. The purity of younger magesite deposition is increased.
Subject List : Vein