نتایج جستجو برای: chromitite
تعداد نتایج: 108 فیلتر نتایج به سال:
The Upper Group 2 (UG2) chromitite reef is a shallow-dipping stratiform tabular orebody in the South African Bushveld Complex, which strikes for hundreds of kilometres. Mining extensive, with depths ranging from close-to-surface to 500 m. Pillars are widely used support open stopes and bords. Little work has been done past determine strength pillars on UG2 Reef design was using formulae develop...
Ab-Bid ultramafic complex is a part of Esfandagheh-HadjiAbad coloured mélange at the north of Hormozgan Province. It contains harzburgite, lherzolite, dunites, pyroxenite and chromitite. Dunites occur either as large and continuous masses or as dykes which have been intruded into the harzburgites. Mineral chemistry evidences show that the origin of these two types of dunites are completely diff...
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