Thickness variation of Coal Seams in Loa Janan Anticline: Implication for Exploration and Mining Activities
| Main Author: | Nalendra, Stevanus |
|---|---|
| Format: | Proceeding PeerReviewed application/pdf |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/7949/1/Nalendra_(2007)_%2D_Thickness_Variation_of_Coal_Seam.pdf http://eprints.unsri.ac.id/7949/ |
Daftar Isi:
- Study area of spatial is limited to the narrow asymmetry anticline that is on the forelimb of Loa Janan Anticline. In geological time, this study observed thickness variations of coal seam on the Balikpapan Formation which is a coal bearing formation from the Kutei Basin. The coal seam has four thickness variations that can be separated into pinch out, washout, splitting, and coal seam gradually turning into shally coal. The phenomenon of thickening and thinning in the coal seams can occur at close distances though. Accurate data on the coal seams thickness is very important to know, because it is closely related to the aspects of resources and reserves. Resource and reserve calculations require clarity of coal seams thickness. Errors determining the coal seams thickness can lead to errors in resource until reserves estimation. This study is descriptiveobservative, so the source of data relies on field observation results, then supported by analysis to determine the effect of geological processes on thickness variation of coal seams. Furthermore, the final derivative is a combination of descriptive and genetic models of coal seams as well as the implication of thickness variation on exploration and mining activities.