Berdasarkan karakteristiknya, pasir kuarsa dapat digunakan di industrj gelas, kaca, semen, keraaik, logaa dan pengecoran logaa, dll. Potensi pasir kuarsa ini cukup banyak dan tersebar di 56 lokasi di 16 propinsi di Indon~sia. Jumlah cadangannya diperkirakan tidak kurang dari 5,2 milyar ton. Sebagian besar (72,76 %) terdapat di Propin…
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Deskripsi Fisik
60 Halaman, isi tidak berwarna, lampiran, cover hi
Copper, Lead and Zinc Ore indications ate wi{ely distributed in Indonesia, but up till now workable deposits have not yet been found. Small quan t i ties of o r'e have be en produced as a by- product of the precious metal winning an~ for experimental …
DaLam tahun 1984 yang la l u , Proyek Pengembangan Pus at Inf ormas i Mineral telah menqadakan survei penyed i aan dan pemakaian ben toni t di se Iuruh Indonesia. Survei di tujukan kepada produsen dan konsumen bentonit dari j enis kalsium (Ca-bentonit), yaitu sejenis bentonit yang berfunqs t sebagai 'penj…
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Deskripsi Fisik
20 halaman , tidak berwarna, tidak bergambar , cov
In this short Course the main emphasis will be on the methods by which geo• chemists select and analyse accessible Earth materials, the relationships between the chemical composition and the structure of rocks and minerals, the chemical aspects of the Earth's structural evolution, geochemical reactions and cycles, and the p…
In the framework of an expedition with a limited duration only a small number of aspects of the extremely complicated coral reef biology and geology can be studied and only a small number of the numerous coral reef areas of Eastern Indonesia can be investigated. Consequently a choice has been made, based on an identifi…
Dalam pandangan•kerarnik modern (new ceramics), keramik oksida meliputi semua bahan mentah keramik yang disusun oleh satu fasa oksida. Bahan mentah untuk keramik oksida m8lip8ti ?ksida aluminium (A12D3), oksida beriliu~ (Be0), oksida magnesium (MgO), oksida zirkonium (zro2) , bahan - bahan keramik magnetik dan bahan - baha…
Zur Gewlnnung der Probe fOr die Analyse wird von jedem nach DIN 1061 entnommenen Stein etwa ein Zehntel des 'ursprOnghchen Stein gewichtes mindestens aber 200 und hoch- tens 1000 g auf eine KorngrBBe von etwa 1 mm unter Vermei~ung von Verlusten vor• zerkleinert. Die AuBenhaut der Steine, die durch …
The stratigraphy and paleontology of the Cenozoic deposits developed in the Joban coal-field, northeast Ibaragi and southeast Fukushima Prefectures, have already been studied by many authors. Since C. KOCHIBE (1883) reported on the occurrence of fossil molluscs from the rocks building the upper…
The ever increasing availability of computer programs and facilities leaves no question that a geologist can perform a factor analysis with little difficulty. Be cause of this ease, there is often a tendency to apply methods without fully understanding either the logic of the method or the …
The field programme for the year 1961 and following years is mainly based on:
1. the need of counterparts for the foreigmn experts in the execution of geological explorations for the purpose of different "foreign aid projects".
2. The need of carrying out the "home projects", which is scheduled mainly during the wet season
3. the need of continuing …