Rahmad, Basuki and Prasetyadi, Corolus and Zuhdi, Fadhil and Darmawan, Indra and Raharjo, Sugeng and Ediyanto, Ediyanto and Prasetya Putra, Gerhana (2020) Characteristics of Cleat and Geometry Coal Seam of Keban Area, Lahat Sub-District, South Sumatra, Indonesia. In: International Symposium on Earth Science and Technology 2020, November 26-27, 2020, Fukuoka, Japan.
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(1) Characteristics of Cleat Geometry Coal Seam of Keban Area, Lahat Sub-District, South Sumatra, Indonesia.pdf Download (8MB) | Preview |
Abstract
Cleat is a term used for fractures in coal, there are two types of fractures which are a pair of face cleats and butt cleats. Cleat which is a component of coal has characteristics consisting of openings, spaces, length, frequency, orientation, and mine ral fillers contained therein. Coal bearing formation in the research area is the Late Miocene - Pliocene included Muara Enim Formation. The coal depositional environmental of the Keban area and its surroundings is deposited in delta plain through a regression phase with the presence of multiple seam coal and the coal thickness between 3 - 10 meters. Regionally the study area belongs to the Syn Orogenic tectonic phase. the coal quality of the Keban Area: Caloric Value 5347-5504 kcal /kg, Inherent Moisture (23.6%) Volatile Matter (32.1%), Fixed Carbon (40%), Total Sulphur (0.5%) including Sub-Bituminous Coal. The geometrical form of coal that developed in the study area is in the structure of the anticline fold Open uprigth gently Plunging Fold, with the axis of direction trending relatively eastern to western. The results of cleats analysis in the study area are endogenic cleats (macrocleats). There is a significant difference in the intensity of the cleats in the flank of folds which are steeply and the flanks of folds are gently sloping. Generally perpendicular to the bedding plane so that the plane of fracture tends to divide the coal layers into thin tabular fragments. Keywords: coal, quality, anticline, fracture, endogeneous cleat, macrocleat
| Item Type: | Conference or Workshop Item (Paper) |
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| Uncontrolled Keywords: | coal, quality, anticline, fracture, endogeneous cleat, macrocleat |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr..Ir. MT Sugeng Raharjo |
| Date Deposited: | 25 Feb 2022 07:18 |
| Last Modified: | 25 Feb 2022 07:22 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/27522 |
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