Macerals Analysis Seam M2 Muaraenim Formation: Implication toward Coal Facies and Coal Rank in Kendi Hill, South Sumatra

Nalendra, Stevanus and Rajaguguk, Yonathan Mangatur (2018) Macerals Analysis Seam M2 Muaraenim Formation: Implication toward Coal Facies and Coal Rank in Kendi Hill, South Sumatra. Journal of Geoscience Engineering, Environment, and Technology, 3 (2). pp. 94-102. ISSN 2541-5794

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Official URL: http://journal.uir.ac.id/index.php/JGEET/article/v...

Abstract

The Muaraenim Formation is a coal bearing formation in South Sumatra Basin of the Late Miocene Pliocene. Muaraenim Formation based on coal seam content is divided into four seam, are: M1, M2, M3 and M4. Coal seam in this area include in seam M2 member, with the general characteristics of the presence of silicified coal on the roof and floor of coal seams as a marker. The administration of the research area is located in east Kendi Hill, South Sumatra. The Kendi Hill is composed of adesite igneous rocks that intruded Muaraenim Formation in unconformity at the time of Pleistocene. This study aims to determine the environment of coal depositional based on maceral analysis and determine the factors influence the physical characteristics of coal seams in Kendi Hill. Data that has been obtained from the field, then conducted a selection process.The number of samples analyzed were nine sample based on near and far to the Kendi Hill spread from the southern, central, and northern of the location. The result of the analysis will display the maceral diagram. Megascopically, coal seam in the Kendi Hill are black, dull with bright, uneven subchoncoidal, blackish brown in streak, have a pyrite and resin. The thickness of the coal seams ranges from 0,45 to 14 meters. Based on the maceral analysis, the coal seam in the Muaraenim Formation is composed dominated by vitrinite, then liptinite, inertinite and mineral matter pyrite (1,6-6,6%). Vitrinite reflectance of coal in the research area ranges from (0,37-0,48%) that included to the Sub-bituminous High Volatile Bituminous C. From the results of Tissue Preservation Index and Gelification Index value indicated that the coal facies in the research area was a limnic to wet forest swamp. Whereas the deposition of the Muaraenim Formation in deltaic environment (transitional lower delta plain).

Item Type: Article
Subjects: Q Science > Q Science (General) > Q1-295 General
Q Science > QE Geology
Divisions: 03-Faculty of Engineering > 34201-Geological Engineering (S1)
Depositing User: ST. MT. Stevanus Nalendra
Date Deposited: 20 Jan 2020 07:18
Last Modified: 20 Jan 2020 07:18
URI: http://repository.unsri.ac.id/id/eprint/24553

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