Peta geologi lembar Baturaja ini disederhanakan dan dikompilasi dari Gafoer dkk (1993), dan penentuan umur dari intrusi granitnya oleh McCourt dan Cobbing (dilampirkan dalam kotak merah berikut peta geokimianya). Struktur dan sesar daerah ini ditafsirkan dari citra potret udara yang dilakukan oleh Puslitbang geologi bekerjasama dengan SSGMEP. Struktur di daerah ini yang dom…
There are various epigenetic mineralization types hosted by sedimentary rocks, one of them is recognized as Skarn Deposits. The Skarn (Au-Ag,Cu-Pb-Zn-Mn) type deposits are distributed in almost the whole Indonesia Island Arcs with the exception MOLLUCAS Islands. Nowdays the well known Cu-Au skarn type deposit found in Indonesia is occured in ERTSBERG, West Irian. The total …
Sebaran satuan batuan utama di Lem bar Bengkulu yang diperlihakan pada peta geologi yang disederhanakan (McCourt, 1993) dibuat untuk membantu pencirian contoh - contoh geokimia kedalam bebera- pa grup litologi yang berbeda, didasarkan pada peta geologi sekala 1 : 250.000 Lembar Bengkulu (Gafoer, dkk., 1992). Lembar ini didominasi oleh 2 litologi yaitu batuan gunun…
Penyelidikan geokimia regional pada Lem bar RENGAT (0915) yang merupakan program lanjutan pemetaan geokimia bersistem Sumatera Bagian Utara yang dilaksanakan oleh "North Sumatra Project" (NSP), telah dilaksanakan pada bulan Juni sampai Juli 1983 (periode I) dan Oktober sampai dengan Nopember 1983 (periode II) oleh Tim Yankey, Victor dan Zulu (Djumsari A dkk., 1983; G…
Indonesia is formed by the interaction of three large plates producing volcanic paths magmatic pathways and sediment deposits, as well as forming geological diversity and geological heritage that are potential to be developed into geotourism and geopark areas. Whitin a period of 800 years, Indonesia has produced three caldera with a diameter 7km (Rinjani, Tambora and Krakatau).
With the threat of depletion of conventional sources of energy there has been increased interest in harnessing geothermal energy for man’s use in many countries. However, there as comparatively few people with wide experience in the science and technology of developing this new energy resources.
The current energy crisis has generated an increased interest in alternate source of energy. Resources such as geothermal, solar, and ocean thermal are being actively considered for wide-spread development in the United States and many other countries throughout the world.
Geothermics can be defined as the study of the temperature distribution in the earth and the phenomena which influence that distribution. At the earth’s surface and in the atmosphere, complex meteorological events occur which are strongly influenced by temperature. These phenomena will only be mentioned briefly.
The eminent volcanologist T.A. Jaggar in no way exaggerated the significance of volcanic phenomena when je stated that his conception of volcanicity was of a process which is everywhere at work within and beneath the earth’s crust. Today there are more than 500 volcanoes which are still active or at which activity has been recorded during historic times, while the number of extinct volcanoes,…