Bonar, Luseno and Gusti Indrawan Tritya, Vijaya and Ediyanto, Ediyanto and Hendaryono, Hendaryono and Raharjo, Sugeng (2015) The Occurrence of Acid Mine Drainage in Tanjung Formation, South Kalimantan - Indonesia "The Correlation with Clay Minerals Genesis, Review from Sedimentary Process, with Geochemical Aspect". In: International Symposium on Earth Science and Technology, December 2-3, 2015, Fukuoka, Japan.
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Abstract
Tanjung Formation has a lot potential as a coal-bearing formation in South Kalimantan. However, most of mining activities have a serious risk concerning the coal-bearing strata have high enough level of acidity and greatly affects the coal's quality. The purposes of this research are to understand lithology characteristic, the type of clay and the influence of clay genesis in the formation of acid mine drainage. To understand t id mine drainage, the methods used in this research are surface geological mapping supportea al analysis. Based on the surface geological mapping and analysis on the depositional environm e rock units in this area; from the oldest to youngest Pitanak andesite, Tanjung sandstone claystone, and alluvial deposit. Tanjung claystone was deposited in Transitional Lower Delta Plain - Back-barrier h is influenced by seawater or marine environment; and its coals were deposited in dome/ridge-s (Bog) in different states, limnic and telmatic state, influenced by groundwater level (trangression - regression, rainy and dry season). Thus, produced framboidal pyrite and gypsum as it potential acid forming material. Besides that, the coal mine activity (excavation or moving the overburden material) causing the exposure of sulfide to the air; and in this condition, sulfide minerals will be oxidized, dissolved by meteoric water and then forming the acid mine drainage in the research area. Keywords: Tanjung Formation, Tanjung claystone, Lower Delta Plain, acid mine drainage, clay minerals, gypsum, framboidal pyrite.
| Item Type: | Conference or Workshop Item (Paper) |
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| Uncontrolled Keywords: | Tanjung Formation, Tanjung claystone, Lower Delta Plain, acid mine drainage, clay minerals, gypsum, framboidal pyrite. |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr..Ir. MT Sugeng Raharjo |
| Date Deposited: | 01 Mar 2022 08:27 |
| Last Modified: | 01 Mar 2022 08:27 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/27520 |
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