Geochemical sediments of various types are an aften overlooked but extremely important component of global terrestrial environments .where present ,chemical sediments and residual deposits may control slope development and landscape evolution .increase the preservation potential of otherwise fragile sediments ,provide important archive of environmen…
The grey-green matrix of the ore has a)streaky yellow brown parts consisting of globular aggregates of approx. 1 mm size with brown iron along the rim, and b)dark inclusions up to 2 mm size, concentrically built, mostly globular, at parts very irregularly formed.
The textbook is intended for the economic geologist who deals with the evaluation of deposits at an early stage of developments ,it offers rules for quick and easy calculations based on the application of approximate data .it provides both the student and the geologist in the field with a complete set of rules and methods enabling them to perform a …
At present, some 98% of Indonesia's energy requirements come from oil and natural gas, exports of which bring in about 70% of total foreign exchange earnings. As the country develops, so energy needs grow. If this growth can be supplied, at least in part, by non-oil sources, so much more oil is released to earn vital foreign exchange. This is the co…
The area studied lies between 18 and 24 km south of samarinda along either side of the road to Balikpapan, between Universal Transverse Mercator (UTM) coordinates 9934 in the north, 9928 in the south, 0509 in the west and 0514 in the east; and comprises an area of approximately 30 square kilometer (Figs. 1,5 and 19). The area was selected on the bas…
This is the third of a series of reports describing the work of tecnical co-operation project CTA-62 in East Kalimantan. The project was carried out by geologists from the Institute of Geological Sciences of the United Kingdom, and Directorate Of Mineral Resources of the Republic of Indonesia. Previous report, (Thomas, Haryoko and Land 1980, and add…
Survey ini bertujuan mengambil contoh2 batubara didaerah Kalimantan-Timur "Rebertson Research", adalah badan yang melaksanakan dan membiayai pekerjaan tersebut. Badan "Research" ini berfusat di-Inggris, sedang "Robertson Research (Australia) PTY.LTD" adalah cabangnya.