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Summary Ranau Geothermal Prospect Area is located at borderline South Sumatera and Lampung Province on the Southwest Sumatera Island, bordered by three clusters of young volcanic, namely Mt. Pugung on Southwest, Mt. Seminung on South, and Mt. Raja on Northeast. With this condition, based on geological map, Ranau Area is dominated by volcanic breccia, tuff, and andesite-basaltic lava (Qhv) from Seminung Volcanoes, Andesite-Basaltic (Qv) with thickness 300 m from Pugung Volcanoes, contained by sulphide minerals and quartz veins (Tomh), and Rhyolitic tuff, pumiceous tuff, welded tuff with carbonaceous claystones intercalations (QTr). On surface mapping and based on reference found three geothermal manifestation such as Kota Batu hotspring on northeast of Seminung Mountain, Ujung hotspring on the west seminung, and wahid hotspring on northwest area. Based on Land Surface Temperature Map, we obtain the high temperature indicated by dark-red color with value is 35-50oC. In this research, we would to correlate the result of landsat-8 satellite imagery (processed into land surface temperature map) with geothermal manifestation (three hotspring) based on reference to know the hotspot zone as a preliminary study of geothermal and geo-tourism prospect area. |
