The THE EFFECT OF GEOLOGICAL STRUCTURES ON THE COAL QUALITY OF THE SEMBAKUNG FORMATION IN BERAU REGENCY, EAST KALIMANTAN

Wahyu Sugiarto; T. Listiyani R. A.; Hill G. Hartono; Ev. Budiadi

doi:10.33579/krvtk.v9i1.4894

Wahyu Sugiarto Magister TG ITNY
T. Listiyani R. A. Institut Teknologi Nasional Yogyakarta
Hill G. Hartono Institut Teknologi Nasional Yogyakarta
Ev. Budiadi Institut Teknologi Nasional Yogyakarta

DOI: https://doi.org/10.33579/krvtk.v9i1.4894

Keywords: Geological structure, coal quality, Sembakung Formation

Abstract

The Subsurface coal resources are 43.533 billion tons with total reserves of 173.51 million tons. The Berau Regency area has coal-bearing formations of the bituminous - sub bituminous type, namely the Latih Formation, Labanan Formation, Domaring Formation, Sajau Formation and Sembakung Formation. The research methods used are surface geological mapping, rock sampling and drilling. The analysis used is coal quality and geological structure. The results of analysis of changes in the dip of rock layers caused by geological structures in the form of folds and thrust faults can cause changes in coal quality. The dip of coal seam in the LP 54 outcrop sample is 24º, which has lower coal quality compared to LP 38 that has a seam dip of 65º. The quality of coal in LP 38 seam position N 203º E/65º has a calorific value of 6,393 Kcal/kg, while in LP 54 seam position N 30º E/24º has a calorific value of 4,888 Kcal/kg. At the drill point, location MMA_19-T has better coal quality compared to MMA_18-T and MMA_20-T, this is because the seam in MMA_19-T experienced folding accompanied by faulting with a calorific value of 7326 Kcal/kg.

Downloads

Download data is not yet available.

References

[1] Suparta, W., Sugiarto, W., 2023, Geoscanner Application for Resistivity Measurements through Subsurface Geological Mapping, Sustainable
Environment, Development, and Energy, AIP Conf. Proc. 2983, 020005-1–020005-8, pp. 1-8, https://doi.org/10.1063/5.0178674
[2] Direktorat Jenderal Mineral dan Batubara, “Road Map Pengembangan dan Pemanfaatan Batubara 2021 - 2045”, Kementerian Energi dan Sumber
Daya Mineral, 2021.
[3] Sugiarto, W., Listyani, T.R.A., Winarni, 2023, The Effect of Ash Content on Coal Quality in the Labanan Formation in Berau District East Kalimantan
Province, Jurnal Kurvatek, vol. 8, no. 1, pp. 1-6, https://doi.org/10.33579/krvtk.v8i1.4020.
[4] Diessel, C.F.K, 1992, Coal-Bearing Depositional Systems. Springer-Verlag, Berlin Heidelberg.
[5] Muhari, R., Ediyanto, Dwi, H.R., 2016, Geology and Geological Structure Influence on the Quality of Coal At Sandstone Unit Kampungbaru,
Mutiara And Surrounding Area, Samboja district, Kutai Kartanegara Regency East Kalimantan Province, Promine Journal, vol. 4, no. 2, pp. 21-30.
[6] Salinita, S., Bahtiar, A., 2014, Pengaruh Struktur Geologi Terhadap Kualitas Batubara Lapisan “D” Formasi Muara Enim, Jurnal Teknologi Mineral
dan Batubara, vol. 10, no. 2, pp. 91-104.
[7] Sugiarto, W., Listyani, T.R.A., 2023, Pemanfaatan Air Sungai Punan Untuk Masyarakat Sekitar Tambang Kecamatan Gunung Tabur Kabupaten
Berau Kalimantan Timur, Prosiding Nasional Rekayasa Teknologi Industri dan Informasi XVIII Tahun 2023 (ReTII) Yogyakarta, pp. 749-758,
http://journal.itny.ac.id/index.php/ReTII
[8] Sugiarto, W., Wijaya A.E., 2022, Karakteristik Batubara Formasi Sinjin di Daerah Siduung Kecamatan Segah, Kabupaten Berau, Kalimantan Timur
[9] Sugiarto, W., Danisworo, C., Listiyani, R.A., Budiadi, Ev., 2023, Analisis Proksimat dan Peringkat Batubara Formasi Sinjin di Daerah Siduung
Kecamatan Segah Kabupaten Berau Kalimantan Timur, Jurnal Ilmiah Geologi Pangea vol. 10, no. 1, pp. 55-65, DOI: https://doi.org/
10.31315/jigp.v10i1.10004
[10] R. Yosep, W. Sugiarto, D.I. Suhada, Karakteristik Batubara Pada Formasi Sembakung di Daerah Segah, Kabupaten Berau, Provinsi Kalimantan
Timur, Buletin Sumber Daya Geologi, vol. 9, no. 3, pp.185-192, November 2014.
[11] Rickard, M.J, 1972, Fault Classification: Discussion, Geological Society of America Bulletin, V.83, pp. 2545-2546.
[12] Twiss, R.J., Moores, E. M. 1992, Structural Geology, W. H. Freeman & Co., New York.
[13] Waterhouse, G.W., 1990, GWC Coal Handbook, George Waterhouse Consultants Ltd., Bridge House Bainton Road Tallington Tincolnshire PE9 4RT,
United Kingdom.
[14] Hatcher, R D., Jr., 1990, Structural geology: principles, concepts, and problems: Columbus, Merrill Publishing.
[15] Dennis, J.G., 1972, Structural Geology, California State University, Long Beach.
[16] Billings, M.P., 1972, Structural Geology, 3rd edition, Prentice-Hall of India, Private Limited.