Abstract
Belitung Island is known to have natural resources similar to Bangka Island, where there are many mineral contents in it. Especially in alluvial deposits, minerals are found due to weathering processes that contain minerals in economical amounts, generally these minerals are kaolin and quartz. This research was conducted in geological investigations carried out by field mapping, pit sampling, geoelectric tests, and geochemical tests. Based on the result of geoelectric test, it can be known that the potential of minerals deposits in alluvial found at depths from 0,5 to >10 meters with thickness of alluvial deposits up to 18 meters. The results of the observation pit sampling found that the economical mineral layer was in the form of quartz sand deposits with a thickness of up to 7 meters and kaolin deposits with a thickness of 0.5 meters. The results of geochemical tests of pit sampling samples show the percentage of quartz is 99,6% and others 0,4 %.
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