Harjanto, Agus and Sutarto, Sutarto and Kurniawan, Paschalis Pindyka Aji (2019) GEOLOGY AND THE EFFECT OF BOULDER SIZE CONCRETION TO BAUXITE LATERITE DEPOSIT QUALITY AT DJANRA AREA, SANDAI DISTRICT, KETAPANG REGENCY, WEST KALIMANTAN. JOURNAL TECHNO.
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B13.Geology And The Effect Of Boulder Size Concretion To Bauxite Laterite Deposit Quality At Djanra Area, Sandai District, Ketapang Regency, West Kalimantan.pdf Download (1MB) | Preview |
Abstract
The research area is located in Djanra areas Sandai District, Ketapang Regency, West
Kalimantan. The research methods used are surface geological mapping, bauxite sample
collection, also studio and laboratory analysis. Laboratory analysis includes petrographic
analysis, XRF, and wet analysis. The geomorphology of the study area is dominated by
denudational and anthropogenic landforms as a result of mining activities. The
constituent rocks are Kerabai andesite units which are Middle-Late Cretaceous and are
intruded by Sukadana trachyte units which are of Late Cretaceous period. The geological
structures found are a shear joint with the main southwest-northeast direction and the
normal right slip fault. Bauxite laterite deposits in the research area have varying
overburden and ore thicknesses. Distribution of concretion size of boulder to depth in the
study area varies. Based on the results of the study, the boulder size concretion can affect
the quality of bauxite laterite deposits. Where on DJANRA-1 hill is declared feasible to be
taken and mixed with smaller concretions because it meets quality standards.
| Item Type: | Other |
|---|---|
| Uncontrolled Keywords: | Bauxite, Concretion, Boulder, Quality, Sandai |
| Subjek: | Q Science > QE Geology |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr.ST,MT AGUS HARJANTO |
| Date Deposited: | 10 Dec 2019 01:31 |
| Last Modified: | 10 Dec 2019 01:31 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/21810 |
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