The Occurences of Heavy Mineral Placer at Kendawangan and Its Surrounding, West Kalimantan Province

• Main Authors: Agus Setyanto, Maman Surachman
• Format: Article
• Language: English
• Published: Marine Geological Institute of Indonesia 2017-09-01
• Series: Bulletin of the Marine Geology
• Subjects: Heavy minerals placer; Zircon; Cassiterite; Kendawangan; West Kalimantan
• Online Access: http://ejournal.mgi.esdm.go.id/index.php/bomg/article/view/319

The main objective of this study is to identify and to determine the variation and content of heavy mineral placer of Kendawangan coastal, offshore and its surrounding area. Sediment samples were taken from 18 locations, such as 12 samples from offshore and 6 samples from coastal area. For this analysis the heavy metals were identified and analyzed using isodynamic separator and binocular microscopic. The result indicates that heavy minerals consist of zircon, cassiterite, rutile, ilmenite, topaz, chalcopyrite, epidote, pyrite, hematite, hornblende and magnetite. Cassiterite and zircon are also found in sediment samples in all locations and potentially to be further developed.