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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Deskripsi Fisik
13 Halaman, lampiran peta, tidak berwarna, cover b
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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Deskripsi Fisik
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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Deskripsi Fisik
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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Deskripsi Fisik
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…
Prior to the IAGMP the only significant gravity mapping of Irian Jaya Was undertaken byb the Nederlandsche Nieuw Guinee petroleum Maatschappij(NNGPM) from 1936 to 1960 as reported by visser and Hermes 1962. This pioneering Work Was undertaken as part of a search for oil and gas Was therefore largely restricted to areas of considered hydrocarbon pote…
A 1st-Order geochemical- and soil-painning tin anomaly on the north-aest margin of the Hatapang granite in north sumatra was magnetometric-.VLF-and VES measurements)and three brief geological traverses.
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28 Halaman, tidak berwarna,lampiran peta, cover bi
The Kr. Dusun basin area has been subjected to several previous investigations that have indicated the presence of porphyry-style mineralisation plus the occurrence of some lead-zinc drainage basin anomalies. In this investigation an area a altered granodiorite was surveyed by detailed drainage basin and rock sampling.
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Deskripsi Fisik
58 halaman, tidak berwarna, lampiran peta, cover b