Pada awalnya manusia cenderung mengidentifikasikan sumber daya dengan substansi tertentu, benda yang nyata dapat dipegang. Memang suatu substansi dapat berfungsi sebagai sumber daya, clan pada dasarnya benda memang mempunyai peranan besar dalam pengertian sumber daya, misalnya bahan bakar seperti batu b…
Geoscience has a vital role to play in underpinning the social, economic and indus• trial infrastructure of nations, now and as we move into the 21st century. If we are to have the mineral and energy resources to sustain a global population of 10 billion or more; if we are to manage the fragile environment we cohabit, mitigate against the…
The machines are equipped to run at U.K. mains voltage and frequency, ie 240v 50Hz, and consume 146VA power at full load. Computers are sensitive to voltage fluctuations, and '.even more so to sudden voltage failures. It is usually prudent to install some form of protection device between the mains and the computer. Mains-born interference can take …
Secara garis_ besar penyelidikan g eok.irada seperti pada umumnya penyelidikan ge~logi lainnya terbagi atas tiga langkah utama yaitu pekerjaan di lapangan, pekerjaan di laboratorium .. dan pekerjaan-pengola.han- data dan interpretasi. T:ujuan penyelidikan geokimia sendiri adalah mencari dan menentukan pola dispersi suatu atau beberapa unsur yang …
1. Proyek Bimbingan Eksplorasi Usaha Pertambangan Swasta Nasional (P.B.E.U.P.S.N.), dimulai sejak April 1980, tahtm anggaran 1980 - 198L
2. Sampai saat ini !. 18 bulan, telah diberikan bantuaneksplorasi dan penyelidikan unum kepada 15 pemegang KP eksplorasi dan SIPD (Surat Izin Pertarnbangan Daerah).
3. 1. Bantuan eksplorasi yang diberi…
As shortages in the supply of mineral cotmnodities become more probable, there is an•increasing need for reliable and comparable reserve/resource data. It is therefore necessary to standardize the traditional classification procedure by quantifying the three basic criteria in resource evaluation: economic feasibility, geologic assurance, re…
In recent years two new classifications of Cale Alkalie granitoids have evolved in the eastern hemisphere and are currently influencing exploration concepts, particularly in SE Asia. This note arises from considerations of their possible appliction to the further exploration of the pre-Quaternary part of Sumatra for which a Regional Geolog~cal an…
Potash is a generic term used to describe a number of compounds containing the element potassium (K), which is one of the three major plant nutrients. Potash content of these compounds is commonly expressed as percentage potassium oxide (K~O), and the market value of the products is usually dependent on cont…
The rrost fundamental revision of concepts in metallogeny over the last 30 years has been the re - interpretation of pyritic and polyrretallic• sulphide ore deposits as deposits of the syngenetic volcano - sedimentary type. One is disturbed by the proximity •sj.de by side in the same for:ma.ti• on but at different stratigraphic levels, o…
L'Indonesie est placee dans une situation extraordinairement favorable du point de vue des ressot:rces geothermiques. La plupart des 10.000 iles sont d ' origine volcanique, et. 154 volcans sont act ifs, d