Geochemical Distribution of REE and Grain Size Analysis of Heavy Mineral Associated with Tin Placer-Type Deposit, Bangka

Indonesia is included in the East Malaya Block of the Southeast Asian Tin Belt. Two types of tin deposits in Indonesia are primary and secondary tin deposits (placer). Factors that can cause the formation of placer tin deposits include S-type granite, weathering, transportation, and sedimentation. F...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2022-05, Vol.1031 (1), p.12008
Main Authors: Syafrizal, Hakim, AYA, Sulastri, A
Format: Article
Language:English
Subjects:
Alluvial deposits
Deposits
Geochemistry
Grain size
Granite
Mine tailings
Particle size
Radiation
Radiation measurement
Scintillation counters
Sedimentation
Sedimentation & deposition
Tin
Transportation
Weathering
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Summary:Indonesia is included in the East Malaya Block of the Southeast Asian Tin Belt. Two types of tin deposits in Indonesia are primary and secondary tin deposits (placer). Factors that can cause the formation of placer tin deposits include S-type granite, weathering, transportation, and sedimentation. Factors that control the formation of placer tin deposits include the presence of source rock (granite type S), weathering processes, erosion, transportation and sedimentation, and the presence of basins or valleys where weathering materials are deposited. The transportation process has a major role in the grain shape of a material. This study aims to determine the geochemical distribution and characteristics of heavy mineral grains at the accumulation of placer tin deposits, e.g., colluvial, alluvial, and tailings, in which there are 62 sample points located Bangka Island, Indonesia. The research method used in this study was grain size analysis, radiation level measurement using a scintillometer, and geochemical analysis using ICP-MS.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/1031/1/012008