Dari hasH penyelidikan sebellDll perang dunia.ke• II sampai saat ini kita: mengetahui adanya endapan mineral yang terdapat'hampir diseluruh kepulauan Indonesia. Seperti.disepanjang.bukit Barisart SlDllatra.
Kitamenemui indikasi yang menunjukan adanya endapan mineral seperti emas , tembaga, timbal ~ timah putih clan Iain-La ia, …
In the past, conventional reflection seismic techniques were not very successful when applied to typical mining exploration:They lacked resolution in the shallow range or were not cost effective. By combining a light earth tamper source, special geophones and field procedures, a stacking process of the returning seismic events using a microprocessor…
Metallogenetic concept on mineral deposits of Indonesia as proposed by WESTERVELD is reviewed.
Depsite its general validity and practical applicability, certain geological phenomena and mineral occurrences seem to contradict the concept and therefore revisions are suggested A Metallic mineral distribution map with a scale 1:5000.000 accompanies thi…
Dua jenis bijih dan tiga jenis ubahan diidentifikasi dalam Proyek Lascogon di Philex Gold Philippines, di Filipina Surigao del Norte, Pulau Mindanao, Filipina. Bijih jasperoid adalah pembawa bagi mineralisasi emas seperti Carlin dalam prospek Lascogon dan Danao. Bijih terjadi dalam decalcified dan horizon silisifikasi, dengan sedikit kristal klorit …
Recent developments in the Australian industrial minerals sector are discussed. Mineral exports are a large component of Australia's foreign trade, these comprising (in decreasing value) coal, alumina, gold, iron, ore, diamond and mineral sands. Major imports are potassium fertilizer, sulphur and phosphate rock.
The Calaveritas quadrangle is in the western foothills of the Sierra Nevada, east of the Mother Lode gold belt. Most of the quadrangle is underlain by a strongly de• formed bedrock complex that is locally covered by small deposits of undeformed stream gravels and rhyolite tuff.
The bedrock complex consists of met…
Industrial mineral industries in Indonesia are facing a lot problems that exhibited their developments. For a deve• loping country such as Indonesia these problems should be resolved as soon as possible. Moreover now Indonesia has started to enter the take-off phase in term of the national development. It means that Indonesia will become a …
Bahan galian industri (mineral industri dan batuan) mer-upakan ahan tambang yang sangat di perlukan untuk kehidupan sehari-hari, ermasuk dalam menunjang pembangunan fisik. Meskipun nilai atau arga bahan gal i an i ndu st r i r el ati f mur ah , namun dalam pengelolaanya cepat menghasilkan ( quick yi e Ldi n qs ) sehing…