Automatik data behadeling (ADB), berada didalam biro administrasi SGU, yang melayani seluruh biro seksi dan pihak luar.Sedemikian luas jangkauannya tercerminkan oleh otomatisasi atau robotisasi didalam kantor. sebagai misal pintu utama kantor jam buka dan tutupnya diatur oleh ki=omputer. Bila seseorang ingin masuk kantor diluar jam kerja, maka pegaw…
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…
Edisi
-
ISBN/ISSN
-
Deskripsi Fisik
33 Halaman, tidak bergambar, tidak berwarna, lampi
The Hutabargot survey area is a few kilometers west of kecamatan panyabungan on the western side of the batang gadis river. The region was investigated in 1978 as part of the NSP and during this time occurrences of Cu,Pb,Zn,Au and Ag were recoreded in the Tertiary volcanics. This present survey was to investigate geochemical anomalies found during t…
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…
Edisi
-
ISBN/ISSN
-
Deskripsi Fisik
27 Halaman, tidak berwarna, lampiran peta,cover bi
The North Sumatra Geochemical and Mineral Exploration Project is a 4 year (1984-1988) mineral exploration programme being undertaken by a combined team of geologist seconded from the British Geological Survey (BGS) and Counterparts from the Directorate of Mineral Resources (DMR), Indonesia
Edisi
-
ISBN/ISSN
-
Deskripsi Fisik
33 Halaman, tidak bergambar, tidak berwarna, lampi
During the course of the north sumatra project (NSP), three quality control reference materials were used GS-1.GS-2,GS-3. The samples were made by collecting a local (lembang) pozzolona derived from andesite to give the low level control sample GS-1. Porions of this material were then spiked with natural minerals to provide GS-2 (AAS high level stan…
An evaluation of selected target areas and mineral prospects with possibilities for exploration follow-up work. The area covered by these sheets has been thoroughly examined since 1970 by contracts of work taken out by two international minng corporations and PT Antam Barisan Mining. The Latest contract of work is still in force,but is considerably …
The Following methoda of analysis are aplicable to the determination of trace amounts of elements important in the geochemical survey of Southern Sumatra. The methods are applicateble to all waters, stream sediments,soils and in some casses rocks and panned concentrates.
Mesozoic-Cenozoic plutonic rock are present throught western sumatra,defining a series of subpararel,fault-controlled,northwest-southest trending belts. regionally they,broadly,correspond to the southerly extension of the western granite province of peninsular Thailand-Burma but some of the creataceous granites focussed along and west of the main su…
The regional geochemical sampling of Siuthern Sumatra was carried out by the Directorate of Mineral Resourches between 1980 and 1992. All result have been published for each quadrangle area as single element proportiional symbol maps at 1:250.000 scale
Edisi
-
ISBN/ISSN
-
Deskripsi Fisik
41 Halaman,gambar tidak berwarna,lampiran peta,cov