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Reza Mohammad Ganjar Gani
Faculty of Geological Engineering, Padjadjaran University, Indonesia
Earth & Planetary Sciences Engineering

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COAL SEAM ANALYSIS WEST BATURAJA SUB-DISRICT, SOUTH SUMATERA Reza Mohammad Ganjar Gani; Yusi Firmansyah
Journal of Geological Sciences and Applied Geology Vol 2, No 5 (2018): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i5.20244

Abstract

Sumatera island is located between 3 NH to 6 SH and 96 EL to 106 EL, along 1,700 km northernto the South, parallel to the subduction zone between the Sunda plate and Indian Oceanic plate onthe western part of Sumatera Island. The western part of Sumatera Island is a fore deep basin.Parallel to it is the Bukit Barisan chain. Towards the eastern part, there is the foreland basin ofNeogen. At the central zone of Bukit Barisan chain, there is the in-between basin. The SouthSumatera Basin starts from the eastern part of Bukit Barisan stretching to the south-east of theocean and adjoining to the basin at the boundary of Bukit Barisan in the south-west and tertiarySunda Basin in the south-east. Coal at the basin or on this formation with low rank is generallylignite. It is only at the young andesite intrusion (at Bukit Asam) where this lignite is altered to behigh rank coal. On this formation coal is divided into three groups, namely, upper part (6 – 7 seams),central part, and lower part (8 – 10 seam). The coal development is mainly autochthon, in the forestenvironment where there is no indication of the existence of swamp vegetation element. Based onthe data, it can be concluded that coal resource at the survey location has quite good quality, withmoderate calorific value and low sulphuric content. Thus, it can be classified into the ‘brown coal’.
Co-Authors Yusi Firmansyah