K/AR DATING OF BUKIT ASAM AND BUKIT KENDI INTRUSIONS RELATED TO AGE OF MATURITY AND INCREASING OF COAL QUALITY IN TANJUNG ENIM AREA, SOUTH-SUMATERA

Authors

  • HARRY UTOYO UTOYO Geological Survey Centre,

DOI:

https://doi.org/10.30556/imj.Vol10.No3.2007.610

Keywords:

K/Ar dating, coal, age of maturity, quality

Abstract

Coal bearing Muara Enim Formation is widely spread in Muara Enim, especially in Tanjung Enim District, South-Sumatera Province. Field observations display increasing maturity and quality towards Bukit Asam and Bukit Kendi intrusions. Potassium argons age analysis revealed that Bukit Asam is 0,9203 ± 0,26 million years in age and Bukit Kendi is 1,1472 ± 0,29 million years in age respectively, while Bukit Serilo displays negative age. These K/Ar ages result revealed that increasing maturity and quality of coal of the Bukit Asam and Bukit Kendi have taken place since 1,14 million years.

References

Gafoer, S, Amin T.C and Purnomo, J., 1986. Geo- logical map of Lahat, South-Sumatera Scale 1:250.000, Geological Research and Develop- ment Centre Bandung.

Gafoer, S, Amin T.C and Purnomo, J., 1993. Geological map of Baturaja, South-Sumatera Scale 1:250.000, Geological Research and Development Centre Bandung.

Hartmann, Z.G., 1918: Verslag over de resultaten,

v.h. Geol. Mijnbk., Onderzoek Soekamerinda en Boenian., Jarb. Mijnwezen verh II.

Koesoemadinata, R.P.,1976. Preliminary frame- work of the tertiary basins of Indonesia. Proc of Third. Reg Conf. Geol Mineral Resources. Southeast Asia Bangkok. Nov 14-18.

Mannhardt, F.G., 1918. Verslag over de resultaten,

v.h Geol Mijnbk. Onderzoek der Tanjung Kolenvelden., Jaarb. Mijnwezen. Verh. II., p 67 – 107.

PT. Bukit Kendi, 2001. Geology of Bukit Kendi Area, South-Sumatera. Internal report of PT. Bukit Kendi. Unpublish.

Pujobroto, A. and Hutton, A. C., 2000.Influence of andesitic intrusions on Bukit Asam coal, South Sumatera, Indonesia. Proceedings of South East Asian Coal Geology Conference, Bandung.

Roeslan, K., 1984. The coal resources of Indone- sia and Southeast Asia. AGID-ILP Workshop, 7th Australian Geological Convention, Sydney.

Santoso, B. and Daulay, B., 2006. Coalification trend in South Sumatera Basin. Indonesian Mining Journal, vol.9 no. 06.

Tobler, A., 1906. Topograpishe und Geologishe Beschriebung der Petroleum Geberte bei Moeara Enim (Sud Sumatera); Tijdsch. Kom. Ned. Akad. Genotsch., Series 2, v XXXIII, p 224 – 241.

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Vol. 10 No. 3 (2007): INDONESIAN MINING JOURNAL Vol. 10 No. 3 October 2007

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