Pasir besi merupakan salah satu jenis endapan besi yang akhir-akhir ini banyak dicari keterdapatannya di indonesia, berkaitan dengan peningkatkan permintaan bijih besi dunia. Untuk melengkapi dan memutakhirkan data dan informasinya yang Pusat Sumber Daya Geologi melakukan kegiatan inventarisasi di beberapa daerah yang salah satu diantaranya di Sulaw…
Penyelidikan ini dilakukan untuk mengumpulkan data data guna mendapatkan suatu gambaran mengenai masalah geologi dan pertambangan di daerah Tanjung Tarawitan dan sekitarnya, terutama mengenai endapan mangan (Mn) maupun bahan galian lainnya yang memungkinkan akan ekonomis untuk di tambang.
The objectives of the Southern Sumatra Geological adn Mineral Exploration Project (SSGMEP) are to conduct geochemical surveys and to publish geological, geochemical and gravity maps of the island of sumatra south of the equator
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37 Halaman, tidak berwarna, lampiran peta, cover o
A Brief mineral investigation was carried out in the Tinjoan area, Sumatra Utara. This took the form of a drainage basin survey which was conducted at a time when the main target area (the Hatapang Granite( was being investigated by the project. No significant mineralisation was seen in the field or is indicated by the drainage basin survey
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Geuteut is small village 55 km south of Banda Aceh on The West coast of Northern Sumatra At this locality the Miocene Geunteut Granodiorite intrudes Mesozoice rock of the woyla group. These form a westerly dipping series of metasediments and limestones that become increasingly calcareous upword
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125 Halaman, tidak berwarna, lampiran peta,cover b
The survey area lies 90 Km northwest of Tapaktuan on the west coast of Sumatra in Aceh Province. A regional geological and mineralisation. The Susoh instrusion (late cretaceous to palaeocene in age)intrudes volcanics and limestones presenting the possibility of skarn-type mineralisation. Also the drainage basin survey had indicated copper anomalies …
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33 Halaman, tidak bergambar, tidak berwarna, lampi
A geochemical survey and mineral exploration of the Sigalala area has identified a middle Tertiary intrusive complex of altrered/weathered granodiorite with characteristics suggestive of Cu-Mo Porphyry style mineralisation
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27 Halaman, tidak berwarna, lampiran peta,cover bi
A hydrothermally altered granodiorite containing molybdenite and chalcopyrte, dicovered by AMAX mineral exploration, has been investigated by rock and detailed drainage basin sampling. This well-exposed mineralisation is found in the Alue Moli, a small tributary of the Kr. Ise-ise, not far from the Takengon-Blangkejeren track, some 108 km south of T…