COALIFICATION TREND IN SOUTH SUMATERA BASIN
DOI:
https://doi.org/10.30556/imj.Vol9.No3.2006.637Keywords:
coal, rank, coalification, South Sumatera BasinAbstract
Similarities and differences in rank characteristics in the Bukit Asam coals within the South Sumatera Basin reflect their geological setting, particularly influence of the intrusion of andesite bodies and stratigraphic aspect. Rank variation was determined by vitrinite reflectance measurements of one hundred and thirty-four (134) coal samples. The higher vitrinite reflectance of the coals is a result of higher regional coalification level in the basin associated with the local and variable effects of igneous intrusions, as well as the greater cover/overburden. Philosophically, the higher the temperature, the more profound the alteration occurs; and the thicker the overburden, the more profound the rank occurs as well. The thermally affected coals have vitrinite reflectances between 0.69% (high volatile bituminous) and 2.60% (anthracite), whereas those of not affected are between 0.30% (brown coal) and 0.53% (sub-bituminous) according to the Australian classification.
References
Chandra, D. and Taylor, G.H., 1982. Thermally altered coals. In: Stach, E. et al. (editors), Stach’s textbook of coal petrology. Stuttgart.
Darman, H. and Sidi, F.H., 2000. An outline of the geology of Indonesia. Indonesian Asso- ciation of Geologists. Jakarta.
De Coster, G.L., 1974. The geology of the Central and South Sumatera Basins. Proceedings of Indonesian Petroleum Association, 3rd Annual Convention. Jakarta.
Edwards, A.B. and Glaessner, M.F., 1947. The mineral resources of the Western Pacific is- lands. Proceedings of Australasian Institution of Mineral and Metallurgy, 147.
Eubank, R.T. and Makki, C.A., 1981. Structural geology of the Central Sumatera back-arc basin. Indonesian Petroleum Association, 10th Annual Convention. Jakarta.
Haan, E.J., 1976. Stratigraphy and structure of the coal deposits surrounding the Taba con- cession, South Sumatera. Shell Mijnbouw NV, Jakarta (unpublished).
Hamilton, W., 1979. Tectonics of the Indonesian region. US Geological SurveyProfessional Paper, 1078.
Katili, J.A., 1973. On fitting certain geological and geophysical features of the Indonesian island arcs to the new global tectonics. In: Coleman,
P.J. (editor), the Western Pacific: island arcs, marginal seas, geochemistry. University of Western Australia Press, Perth.
Katili, J.A., 1980. Geotectonics of Indonesia-a modern view. Directorate General of Mines, Jakarta.
Koesoemadinata, R.P., 1978. Sedimentary frame- work of Tertiary coal basins of Indonesia. 3rd Regional Conference on geology and mineral resources of Southeast Asia. Bangkok.
Pulunggono, A., 1976. Plate tectonic setting of the oil basins in western Indonesia. American Association of Petroleum Geology Annual Convention, New Orleans.
Roeslan, K., 1984. The coal resources of Indone- sia and Southeast Asia. AGID-ILP Workshop, 7th Australian Geological Convention. Sydney.
Shell Mijnbouw, 1978. Explanatory notes to the geological map of the South Sumatera coal province. Jakarta (unpublished).
Stach, E., Mackowsky, M.-TH., Teichmüller, M., Taylor, G.H., Chandra, D. and Teichmüller, R., 1982. Stach’s textbook of coal petrology. Stuttgart.
Standards Association of Australia, 1964. Aus- tralian standard code of recommended prac- tice for taking samples from coal seams in situ. AS CK5.
Standards Association of Australia, 1977. Code of practice for preparation of hard coal samples for microscopical examination by reflected light. AS 2061.
Standards Association of Australia, 1981. Micro- scopical determination of the reflectance of coal macerals. AS 2486.
Standards Association of Australia, 1983. Guide for the taking of samples from hard coal seams in situ. AS 2617.
Sukarsono, 1982. Eksplorasi tahap II, pemboran inti dan penyelidikan geoteknik di daerah Air Laya dan sekitarnya. Pusat Pengembangan Teknologi Mineral (unpublished).
Sukarsono, 1984. High acid water in the proposed Muara Tiga Kecil open pit coal mine, Bukit Asam, South Sumatera and its possible al- ternative solutions. AGID-ILP Workshop 7th Australian Geological Convention. Sydney.
Thamrin, M., Siswoyo, J., Sanjoyo, S., Prayitno and Indra, S., 1980. Heat flow in the Tertiary basin of South Sumatera. Proceedings of 16th Session of CCOP. Bandung.
Downloads
Issue
Section
License
Indonesian Mining Journal provides immediate open access to its content on the principle that making research freely available to the public to supports a greater global exchange of knowledge.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
