The Government of indonesia proposes to maximise the use of indigenous coal for electricity generation so as to exted the option of conserving its oil reserves.
The Tertiary volcano-plutonic arc exposed along the west coast of Sumatra can be traced to the south coast of Java. The corresponding subduction zone can be found in the islands west of Sumatra and the submarine ridge south of Java.
The Late Cretaceous plutonic belt of Sumatra does not continue to Java but passes north of it,…
Katili, J .A., i 973. Geochronology of West Indonesia and its implicatioti on plate tectonics: .Tectono:.physics, 19: 195-212. The results of radiometric dating of granitic rocks around Kotanopan near the west coastof-Ce0ntr~l umatra indicate an average age of 45 million years.
Granites from the Lissi Mass in t…
The Lassi mass, Southeast of lake singkarak is a complex rock assemblage of permo-Carboniferous volcanics and sediments and Triassic Duringg Permo-Carboniferous volacanic and sediments and Triassic deposits, intruted by plutons and partly overlain by Tertiary sediments. During Permo-Carboniferous time this area was occupied by an elongated sea basin…