Publishing the first sheet of the geological map of sumatra the principles of this work should be discussedin short. - naturally the results of previous investigations
The mapped area comprises the whole of north sumatra, which morphologically forms a characteristic unit and belongs to the province of atjeh and dependencies and in part to sumatra's eastcoast.
Map P1.XVI, to a scale of 1 : 12500, has been surveyed with the boussole tranche nontagne, as to the main ecasurements, while the interosediary measurements have bean done with measuring-chain and had-compass.
As a result of the favourable outcome, obtained during a goverment survey of the coalfields in residency Palembang in the year 1915, at which time the discovery of high-calorie coal raised hopes that combustible had been found here, equal to the best European coal,
Pemanfaatan batubara baik sebagai sumber energi primer maupun sebagai bahan baku untuk industri perlu mendapat perhatian yang sungguh-sungguh dari Pemerintah, mengingat perkembangan situasi energi dunia akhir-akhir ini. Kebijaksanaan pemerintah untuk sebanyak mungkin mendapatkan devisa dari ekspor minyak dan pemberian prioritas untuk pemanfaatan gas…
Tulisan ini merupakan suatu kompilasi dari beberapa laporan penyelidikan terdahulu yang telah dilakukan didaerah kalimantan Timur dan Selatan, yang terdapat di Perpustakaan Direktorat Geologi Bandung dan di P.N. Pertamina Jakarta.
In the framework of the ,,iron and project" of the Biro Perantjang Negara, geological investigations on the coal deposits in the Sungup-Selaro region, in the northern part of Pulau Laut (Southeast Kalimantan), were carried out in 1959 by the Geological Survey of Indonesia.
The first information about the occurrence of the minerals in the residency of benkoelen, whitch may be considered as accurate, came from MARSDEN (See bibliography Nr. 5 at the end of this treatise). on the page 168 the aouthor reports, thath from a reliable source in became known to him that (annually?)
the survey started in june, 1917, and was suspended on the 15th of february, 1918, due to illness, on account of which the survey of the concession "Boenian" could not entirely be completed