Study of geology aspects and minerals uranium potential at West Kalimantan in order to NPP preparation

It have performed of geological aspects of the study in the coastal region of West Kalimantan which it is lowland, mostly composed by granite rocks its aged of Miocene to Cretaceous, and not traversed by active faults. Uncovering of granite rocks and metamorphic in Kalan of Ella Ilir district it aged pre - tertiary old and indicate of potential uranium minerals ranged from 150 - 5.000 c/s that dominated of the rock metalanau and metatuf form inserts (veins) which stretched from the northeast - southwest (NE-SW). The purpose was to get the area composed of old rocks its not traversed by fault in West Kalimantan and recognize the potential of uranium content. The method used to analysis of the secondary data from publications research and confirm data of the geological survey. The confirm give the inform a content of uranium minerals to be controlled by tectonic activities and its fill the field of fracture and brecciation with a thickness sekistositas milimetric - centimetric. The results of the study showed that coastal region includes the District of West Kalimantan Pontianak, Kubu Raya, North Kayong, and Ketapang are recommended areas into nuclear power plant site as including in the area of old rocks and not traversed by fault. Kalan District Melawi regency has potential uranium minerals in the mineral calcite, gypsum and quartz with a ratio of Th/U < 1 and is good enough for the preparation of nuclear fuel in the future. (author)