Dalam rangka pelaksanaan salah satu proyek eksplorasi Geofisika didaerah dalam Pelita IV, 1984-1985 pada bulan Agustus-Oktober 1984 dilakukan penyelidikan dengan metode Elektromagnetik (EM)"Turam" untuk menemukan urat-urat kwarsa yang mengandung emas. Urat kwarsa dan mineral sulfida (Cu,Pb,Zn dan FeS2) didaerah Cibitung/Cikondang diperkirakan terlet…
Serven grab samples of iron sand were collected during the recconaisance survey along the part of southern coast of flores island ,in the vacinity of endeh.
The area consists mainly of a sequence of clastic metasediments,limestones and metavolcanics known as the Geumpang Formation, Which forms part of the Woyla Group of late Jurassic to Early Cretaceous age.To the South-east this succession is cut by the Anu-Batee Fault, a major splay of the North Sumatra Fault System that strikes NW-SE down the axial l…
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The kr. Dusun area of Aceh Tengah has been the subject of several previous mineral investigations that have indicated the presence of mineralisation, possibly in the form of a molybdenum prophyry copper with associated lead-zinc mineralisation. This investigation has shown the Dusunintrusive complex is more extensively hydrothermally altered and tha…
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Dalam rangka rencana pengembangan operasi tambang Batubara Obilin, maka di bentuk proyek Evaluasi Tambang Batubara Ombilin yang berkedudukan di Jakarta dan ada kaitanya dengan maksud rencana pengembangan tadi di atas.
Penelitian serpih bitumen merupakan proyek inventarisasi sumber daya energi,lembaga Geologi dan pertambangan Nasional-LIPI di daearah Sumatera Barat dalam tahun anggaran 1981/1982.
Daerah sungar dan Waringin terletak di tepi barat dari Cekungan Ombilin atau di bagian paling baratdaya dari daerah konsesi P.N. Tambang Batubara Ombilin.
The area surveyed is dominated by pretertiary Woyla Group Rock Consisting of a succession of volcanics and sediments with calcareous units. This group is intruded by the miocene geunteut granodiorite.There have been several previous mineral investigations of this area producing conflicting conclusions.Streams not previously sampled give good geochem…
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The Baso Granodiorite instrusion, which lies just north of the Sumatra fault zone in a remote part of Aceh Barat, has been the subject of a two-fold mineral exploration investigation. The instrusion and its environs were investigated as a potential source of gold and secondly there were a number of regional geochemical survey anomalies, particularly…
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