Geologi sebagai ilmu pengetahuan yang mempelajari bumi tentang terjadianya, komposisinya, struktur dan sejarahnya. Aplikasi dari Geologi diantaranya untuk mencari bahan galian yang mengandung arti ekonomi. Bahan galian ini terdiri atas logam dan buku logam. Untuk mencari bahan galian tersebut digunakan eksplorasi geologi. Didalam eksplorasi geologi …
Sungai tulang terletak disebelah timur bukit Pintutujuh Daerah ini merupakan salah satu gugusan pegunungan Tiga puluh, membujur dari barat laut ke tenggara yang menjadi batas antara propinsi Riau dan Propinsi jambi.
Geological field work was conducted by Mr. A. Said Ismail and the Undersigned on the Sibau COW last May 19 to June 15, 1995 The first week was devoted to securing the necessary government clearances/letters and dialogue with goverment officials.
daerah pantai Singkawang secara umum didominasi oleh endapan aluvial (Qa), endapan pantai atau endapan litoral (Qc) dan setempat oleh endapan penutup kwarter (Qat).
Di Indonesia, bahan galian mineral logam langka, seperti Nb, Ta, Zr, dan REE pada umumnya terdapat berasosiasi dengan batuan granit. Bahan granit terbesar cukup luas di sumatera, Kalimantan, Sulawesi, dan Irian Jaya.
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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Deskripsi Fisik
23 Halaman, tidak berwarna,lampiran peta, cover bi
The main objective of this present survey was to outline mineralised areas and determine the nature and significance of mineralisation found during the NSP work. Systematic sampling involving the collection of geochemical samples was carried during the field work.The oldest rocks in the Sijorang area are hornfelsic metasedimens,limestones,metavolcan…
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27 Halaman, tidak berwarna, lampiran peta,cover bi
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
Three low priority areas were investigated in the Takengon quadrangle because of their proximity to a more important area being studied. These areas-Panomon, Kebyaran and keuretu -were suggested as follow-up targets on the basis of geochemical anomalies found during the regional geochemical survey of the north Sumatra Project (NSP).