Heavy Mineral Studies of Miocene Bhuban Sandstone from Surma Basin, Mizoram, India


Heavy mineral analysis is a valuable tool that helps to determine the source area of sediments and the transport history of sedimentary rock. The heavy mineral assemblage of Bhuban sandstones included non-opaque in the form of mainly zircon, rutile, tourmaline, apatite, staurolite, kyanite, garnet, epidote, augite and opaque minerals. The presence of zircon, tourmaline, rutile in the shape of euhedral to rounded and opaque minerals suggests the derivation of igneous rocks and metamorphic rock. The Bhuban sandstone is derived from mixed sources which includes high-grade metamorphic rocks as well as igneous and sedimentary sources with short to moderate distance of sediment transportation. The ZTR maturity index suggests that the sediment of Bhuban Formation is mineralogically immature in nature

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