The Cikaso iron sand deposit is located in the southern coast of west java. Systematic exploration drilling has been carried out by directorate of mineral resources (Subandoro et. al.,1981). Samples of iron sand are taken by drill holes at a grid of 20 m x 200 m,from which data of thickness and grade are obtained.
Magnetic, gravity, resistivity and refraction seismic surveys were made in a 2.5 km2 coastal area of titaniferous magnetite sand deposits at Meleman village, East Java. Magnetic anomaly data are consistent with models having an average susceptibility of 2.5 x 10 emu/cm? and negligible remanent magnetization with shapes of observed dunal topography or buried lens…
Industrial minerals in Indonesia are widely distributed, although in some cases the deposits are not sufficiently abundant to be exploited in large scales. The Directorate of Mineral Resources is assigned to conduct mineral explorations and inventories, and has a long experience on these jobs. The mineral deposits will be discussed include bentonite, kaolin, natural zeolite, di…