Due to the slow progress of the drilling program it became abvious that the program has to be reviewed and a priority squence of the propesed drill holes has to be established in order to have a minium new geological information input available before the start of the feasibility study.
Coal-rich Tertiary sediments of the ombilin II coal field,west sumatra occur within a structurally complex foult bounded graben formed as a resoult of subduction of the pacific plate beneath sumatra.tectonic activity associated with foult movement appears to have influenced the caracter of the coal seams.grouth foulting my be responsible for areas o…
Kordinasi di dalam organisasi pelaksanaan eksplorasi-geologi untuk perusahaan-perusahaan tambang negara di laksanakan oleh djawatan geologi ,dengan memperhatikan kepentingan masing-masing perusahaan ,langsung dibawah pengawasan j.m mentri perindustrian dasar/pertambangan .
The vast revion of the indonesia archipelago-extending between 6 northern 11 shoutern latitude,and between 95 and 140 eastern longitude-occupies approxima tely 4% of the total are of the earth .it includes 19 largen islands and thousands of smaller island ,many of wich lie along the earth's greatest island are.
In mijn note van 15 juni Jl.,die als bijlage 2 hierbijgevoegd is,werd reed een voolooping overzicht gegeven van delfstoffen,die vooral in dezen oorlogstijd nader onderzocht dienden to worden .
Materials to make good night alumina brick.hence a good grade of bauxite is valuable as an addition to raise the alumina content of clay mixtures .the loss on calcination is from 15 to 30% as a rule and so this must be taken into consideration in the purchase brice of natural bauxite ,gibbsite and diaspore.
The Ombilin II project encompasses an area where high quality coal is known to occur. Based on several core holes and limited outcrop, earlier investigations have shown that this coal can be mined. The present mine feasibility study undertaken by Norwest will provide the detailed information based upon which mining of this resource can proceed.
Dalam rangka realisasi program kerja projek Eksplorasi Bahan-bahan Galian Industri dan Batubara Tahun anggaran 1989/1990 seksi bahan banguna telah melakukan penyelidikan pendahuluan terhadap bahan galian industri dan bangunan(bahan Galian Golongan C) di Daerah Kabupaten Kerinci Sarolangun-Bangko dan Muara Bung0-Tebo Provinsi Jambi. Penyelidikan ini …
The shares of coal and natural gas in the energy mix, particularly for electricity generation, in the APEC economies as a whole have increased tremendously during the last several years. Coal has been a mainstay fuel because of proven abundant regional supply, but its importance has grown for energy security reasons. Oil is becoming less attractive …