Abstract PT. Nusa Cendana is a mining company operating andesite in Taman Ayu Gerung Village, District, West Lombok Regency, Tenggara Province. Andesite criteria are classified as hard and difficult to separate. carries out activities with quarry system. has problem on the slopes because current slope 85°, many joints cause landslides. Ideally, 70°. Slope stability used determine slope’s safety...

Abstract Geothermal energy is one of the mainstay future alternative in Indonesia. One area that believed to have geothermal potential Telaga Tujuh Warna Village Lebong Regency, Bengkulu Province, Manifestations hot springs, mud pools, geysers, sulfur, and presence steam around lake are our beliefs about existence sources area. The purpose this study was determine stratigraphic characteristics ...

Eocene intermediate to felsic subvolcanic rocks of the Torud-Ahmad Abad magmatic belt (TAMB), in northern part Central Iran zone, are exposed between Torud and Ahmad regions South-Southeast Shahrood. These igneous include hypabyssal dacite, trachyte, andesite, trachy-andesite, basaltic andesite; they mainly composed phenocrysts microcrystalline groundmass pyroxene, amphibole, plagioclase, with ...

Kediri Regency is a potential area for mining minerals. One of the rock excavation materials found in type andesite and backfill. Backfill mineral as result weathering parent rock, which rich fragments silica elements. This research was conducted at exploration location Tarokan Village, District, Regency. The study using petrological analysis to obtain types estimates availability these mineral...