Mineral provinces and their connec-tions to phases of nountain building in Indonesia have been proposed by WESTERVELD (J. WESTERVELD,1952). Mineral deposits characterizing certain orogonic belt, are. grouped into one pr-ovfnco., The Malaya orogen (Lats-Jurassic) is charactarizcd by cassitorite bearing pegmatites and veins. Pyrouotasonatic iron an…
Menurut angka statistik tahun 1971 luas tanah pertanian di Indonesia ± 1,57 juta hektar atau ± 8,3% luas seluruh daratan Indonesia. Sepertiga luas tanah pertanian ini berupa tana~ pesawahan yang ditanami padi. Dari semula tanah pesawahan yang ditanami padi ini baru sepertiganya mendapaj, kan pengairan-teknik secara terus-menerus sepanjang tahu…
Penyelidikan endapan serpih bitumen untuk tahun anggaran 1980/1981 telah dilakukan di daerah Ombilin-Sawahlunto. Penelitian ini dimaksudkan sebagai kelanjutan proyek inventarisasi sumber daya energi serpih bitumen• di Sumatera.
Formasi Sangkarewang yang tersebar luas di daerah Talawi telah diselidikai secara mendetail. Lingkungan pengendapan ser…
Perlite is a glassy yolcanic roc~which 'fill upon rapid and controlled heating, expand or l:lpop" into a frothy material of low bulk density -valued as a ,lightweight aggregate. Occurrences and commercial• deposits of perli te are known throughout the world as well~exposed flows and domes of Tertiary and Quatern~ry age like most of ~he volcan…
Although the Van Bemmelen (1949) Geology of Indonesia book is generally viewed as the most significant textbook on the geology of Indonesia, its tectonic interpretations are outdated (and were actually already controversial at the time of publication}.
The pioneering book and maps of Warren Hamilton (1979) 'Tectonics of th…
This chapter Ill of the Bibliography 7.0 contains 297 pages with >2440 titles on the geology of Java, Madura aid the Java Sea. It is subdivided into four areas/ topics, 111.1- 111.4. The introduction to this chapter is somewhat rudimentary, and omits many aspects of Java geology. For more detail see the recent book by P…
This section X.1 of Bibliography 7.0 mainly contains 546 papers on the taxonomy of modern or sub-recent microfaunas and microfloras as well as papers on their distribution in Recent sediments of SE Asia. For a more extensive introduction see Van Gorsel, Lunt and Mor1y (2014, Bertia Sedimentologi 29).
An understanding of modem…
Active strike-slip tectonics and block rotations
After the Middle Miocene collision of the Bangai-Sula microcontinent with East Sulawesi, the present-day • West-ward convergence of the Pacific Plate relative to the Eurasian Plate (Sundaland) is accommodated in Sulawesi by:
1. movements along major active sinistral …
During the early part of August until 7th 1 was in Bangka. We had Intended to leave on 3rd August, but the Garuda Flight scheduled for that day was cancelled, so i though it would be a good opportunity to view the terrain in Sumatera, and on 7th Agustust crossed by small boat to Palembang where we took a train to pandjang and crossed to djawa where …