Characteristics of Coal and Cleat Attributes in Ulak Lebar and Surroundings Area, Lahat Regency, South Sumatra
The research conducted in Ulak Lebar Area, Lahat Regency, South Sumatra. The focus of this study is on the Muara Enim Formation as it is known as the main coal-bearing formation in South Sumatra Basin. The research is aimed to determine the characteristics of coal based on its physical properties, also knowing the cleat development at the coal seam in the research area. The methods used such as literature study, field observation and laboratory test. Field observations included the observations of coal megascopic appearance and cleat attributes analysis such as the measurements of cleat orientation, aperture, spacing and length. The analysis result of cleat at LP 2A and LP 2B shows a relatively similar such as spacing value ranged between 6 - 9 cm and 5.5 – 8.6 cm while the aperture value ranged from 0.05 - 0.2 cm, and 0.05 - 0.25 cm, whereas at LP 67 the spacing value ranged from 1.5 to 3.3 cm and the aperture valued between 0.1 - 0.3 cm. A rather significant difference between the cleat spacing values of LP 67 towards both previous observation stations is indicated by the geological processes occurred during the coalification process thus affected the development of cleats in coal, the geology structure control is characterized by a relatively large aperture and smaller spacing values. The laboratory test conducted is maceral analysis, shows the coal in the research area is dominantly composed of vitrinite (74,8%) and the vitrinite reflectance value is 0,40 indicating the coal classified as sub-bituminous rank.
Amijaya, H., Littke, R., 2005. Properties of Thermally Metamorphosed Coal from Tanjung Enim Area, South Sumatra Basin, Indonesia with Special Reference to the Coalification Path of Macerals. International Journal of Coal Geology 66 (2006) 271 – 295.
Anggayana, K., 2002. Genesa Batubara. Departemen Teknik Pertambangan., FIKTM, Institut Teknologi Bandung.
Apriyani, N., Suharmono, Momen, M., Djaelani, S., Sodli, A., Satria, A., Murtani, A.,S., 2013. Integrated cleat analysis and coal quality on cbm exploration in Sangatta II Field, Kutai Basin, East Kalimantan. Proceedings Indonesian Petroleum Association, 37.
De. Coster G. L.,1974, The Geologi of Central Sumaatera nad South Sumatera Basins, Proceeding Indonesian petroleun Assoc, 4th Annual Convention
Krestanu, A., Iqbal, M., Fernando, R. E., Herawati., Puadi, M., 2016, Karakteristik Cleat Batubara Terhadap Intensitas Struktur Pada Desa Merapi Timur, Kabupaten Lahat di Formasi Muara Enim, Cekungan Sumatera Selatan. Proceeding, Seminar Nasional Kebumian Ke-9. p. 211-215
Lamberson, M.N., Bustin, R.M., Kalkreuth, W. (1991). Lithotype (maceral) composition and variation as correlated with paleowetland environments, Gates Formations, Northeastern British Columbia. Canada; International Journal of Coal Geology 18. p. 87–124
Laubach, S. E., Marret, R. A., Olson, J. E., Scott, A. R., 1998. Characteristics and origins of coal cleat: A review. International Journal of Coal Geology 35 (1998) 175-207.
Nasution, F. P., Nalendra, S. 2017. Characterization of Coal Quality Based On Ash Content From M2 Coal-Seam Group, Muara Enim Formation, South Sumatra Basin. Journal of Geoscience Engineering, Environment, and Technology, Vol 2 No. 3. p. 203-209
Nichols, G. (2009). Sedimentology and Stratigraphy Second Edition, Wiley-Blackwell: London
Prayitno, B., Ningrum, N. S. 2017. Development of Funginite on Muaraenim and Lower Members of Telisa Formations at Central Sumatra Basin – Indonesia. Journal of Geoscience Engineering, Environment, and Technology, Vol 2 No. 2. p. 149-154
Pulunggono, A., S, Agus Haryo., Kosuma, Christine. G., 1992. Pre-tertiary and tertiary fault system as a framework of the South Sumatra Basin: A study of SAR-MAPS. Proceedings Indonesian Petroleum Associations Twenty First Annual Convention, IPA 92-11. 37.
Putra, D. B. E., Choanji, T. 2016. Preliminary Analysis of Slope Stability in Kuok and Surrounding Areas. Journal of Geoscience Engineering, Environment, and Technology, Vol 1 No 1. p. 41-44.
Sari, S. L., Rahmawati, M. A., Triyoga, A., Idarwati. 2017. Impact of Sulphur Content on Coal Quality at Delta Plain Depositional Environment: Case study in Geramat District, Lahat Regency, South Sumatra. Journal of Geoscience Engineering, Environment, and Technology, Vol 2 No. 3. p. 183-190.
Stopes, M.C. (1935).On the Petrology of Banded Bituminous Coals: Fuel , Vol. 14, 4-13
Sudarmono,. T, Suherman., Eza, Benny., 1997. Paleogene basin development in sundaland an itd role to time petroleum system in Western Indonesia. Petroleum system of SE Asia and Australia conference, May 1997. IPA 97-OR-38.
Ward, C.R. (1986). Review of Mineral Matter in Coal, Australian Coal Geology,Geol.Soc. of Australia, Vol. 6 pp. 87-107.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Copyright @2019. This is an open-access article distributed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License which permits unrestricted use, distribution, and reproduction in any medium. Copyrights of all materials published in JGEET are freely available without charge to users or / institution. Users are allowed to read, download, copy, distribute, search, or link to full-text articles in this journal without asking by giving appropriate credit, provide a link to the license, and indicate if changes were made. All of the remix, transform, or build upon the material must distribute the contributions under the same license as the original.