COAL SEAM IDENTIFICATION AND COAL RESOURCE ESTIMATION USING 2D GEOELECTRIC DATA IN THE DS FIELD
Case Study: DS Field
DOI:
https://doi.org/10.33579/krvtk.v10i2.6251Keywords:
Ordinary KrigingAbstract
DS Field is an area with coal potential but has not yet been fully explored and optimally utilized. This study aims to identify coal layers based on 2D resistivity geoelectric data and to estimate the coal resources in the study area. The method used is 2D resistivity geoelectric with the Wenner-Schlumberger configuration, conducted on 9 survey lines with a length of 235 meters and electrode spacing of 5 meters, along with resource estimation using a geostatistical approach through the ordinary kriging method. The results indicate the presence of lignite coal with a resistivity range of 90–150 Ωm. The coal resource estimation yielded a total tonnage of 1,873,156.219 tons, consisting of 473,488.1230 tons in the measured category, 942,873.465 tons in the indicated category, and 45,794.625 tons in the inferred category. The geological losses value is 0.12% or 228,495.074 tons, resulting in a final tonnage of 1,644,661.146 tons.
Keywords: Coal, 2D Resistivity Geoelectrical, Wenner-Schlumberger, Ordinary Kriging, Resource Estimation
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References
L. Thomas, Coal Geology, 2nd ed, Willey-Blackwell, 2012.
P. B. M. &. H. I. Kearey, An Introduction to Geophysical Exploration (3n.d), Blackwell Scientific Publications., 2002.
Sujiman and Nuryanto, “Kajian Penentuan Batasan Penambangan Berdasarkan Cadangan Pertambangan In Situ dengan Menggunakan Metode Blok Model pada CV. Prima Mandiri Provinsi Kalimantan Timur,” JPG (Jurnal Geologi Pertambangan), vol. 2, no. 29, 2016.
P. S. A. Ningsih, Sutrisno, T. Zera, and E. Wijaksono, “Identification of Characteristics and Distribution of Subsurface Coal Using the 2D Geoelectric Method in Tanjung Palas Timur District, North Kalimantan,” Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics, vol. 5 , pp. 33-45, 2022.
M. D. Ramadhan, I. Marwanza, C. Nas, M. A. A. Dahani, and R. Kurniawati, “Drill Holes Spacing Analysis for Estimation and Classification of Coal Resources Based on Variogram and Kriging,” IOP Conference Series: Earth and Environmental Science, pp. doi:10.1088/1755-1315/819/1/012026, 2021.
J. M. Reynolds, An Introduction to Applied and Environmental Geophysics (2nd ed.), Wiley-Blackwell, 20111.
E. H. &. S. R. M. Isaaks, An Introduction to Applied Geostatistics, Oxford University Press, 1989.
S. Hidayat, Amiruddin and D. Satrianas, "Geologi Lembar Tarakan dan Sebatik, Kalimantan," 1995.
W. G. L. &. S. R. Telford., Applied Geophysics. 2nd edition, 1990.
M. Armstrong, Basic Steps in Geostatistics: The Variogram and Kriging, Springer Science & Business Media, 1998.
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