Amri, Nur Ali and Jemain, Abdul Aziz and Hassan, Wan Fuad Wan and Setiawan, Jatmika (2012) Geostatistical analysis on distribution of gold veins. In: 1 st Earth Science International Seminar, 29-30 Nopember 2012, FTM UPNVYK.
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Abstract
The distribution of gold minerals in the vein depends on the initial formation caused by hydrothermal process. The investigation in this work is related to the gold (Au) mineralization in Penjom Gold Mine in the state of Pahang, Malaysia. Gold mineralization in Penjom can be described as sheeted orogenic mesotermal veins and dissemination deposit in Permian sedimentary sequence of fine-grained sediments and volcanics. Variogram calculation results of gold values from 304 drill hole data obtained show that anisotropy phenomenon occurs in east-west direction which the minor range a1=720 meters and major range a2=2397 meters, while in southeast-northwest direction the minor ranges is a1=935 meters and the major a2=3401 meters. Isotropy phenomenon occurs in the southwest-northeast and north-south directions with each range of a = 1622 meters and a = 2143 meters respectively. After the release of 88 data based on variogram calculations of data outliers, anisotropy phenomenon still occurs in east-west direction with each a1=199 meters and a2=4828 meters, while in southeast-northwest direction the ranges are a1=1316 meters and a2=1829 meters respectively. Isotropy phenomenon occurs in southwest-northeast and northsouth with the same range of a=1543 meters. In trials with various active lag 823.95, 411 975 and 205. 987, the drift occurs in east-west and northwest-southeast, and indicating similarty with the directions of lithologic structures. Key words: Geostatistics, area of influence, drift effect.
| Item Type: | Conference or Workshop Item (Paper) |
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| Uncontrolled Keywords: | Geostatistics, area of influence, drift effect. |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr. ST. MT Nur Ali Amri |
| Date Deposited: | 27 Nov 2021 16:44 |
| Last Modified: | 27 Nov 2021 16:44 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/27157 |
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