Baghus, Arnandha (2015) Eksplorasi mineral emas sistem epitermal sulfida tinggi pada daerah prospek C Jl.Jawa barat berdasarkan data TDIP (time domain induced polarization). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Telah dilakukan penelitian mengenai endapan emas sistem
epitermal sulfida tinggi di daerah prospek CJL menggunakan
data TDIP (Time Domain Induced Polarization). Dasar dari
TDIP adalah pemanfaatan sifat polarisasi dan kelistrikan pada
batuan yang termineralisasi. Dalam pengerjaannya, nilai
resistivitas dan chargeabilitas diinversi menggunakan software
AGI Earth Imager 2D. Hasil penampang inversi 2D resistivitas
dan chargeabilitas dimodelkan sesuai parameter dari endapan
epitermal menggunakan software Surfer. Parameter dari endapan
epitermal ada 4, yaitu adanya tubuh batuan intrusi, mineralisasi,
alterasi batuan, dan zona masif silika. Dan untuk mengetahui
persebaran endapan emas, perlu dilakukan pemodelan secara 3D
menggunakan software Rock Works. Dari hasil penelitian yang
dilakukan, terdapat batuan konduktif dan resistif di daerah
penelitian. Endapan emas di CJL berhubungan dengan alterasi
silisifikasi dan masif silika yang bersifat resistif. Batuan resistif,
di atas 250 Ωm, berhubungan dengan batuan lapilli tuff, batuan
vulkanik, dan tubuh batuan intrusif yang besar. Batuan yang
terdapat endapan mineral Au-Cu dicirikan dengan tingginya nilai
chargeabilitas, di atas 250 ms. Lokasi yang berpotensi kaya akan
endapan emas terdapat pada lintasan CJL 600, CJL 300, CJL
100, CJL 0, CJL -400, dan CJL -600.
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The research of high sulphidation epithermal gold deposits
in CJL prospect area has been done using TDIP (Time Domain
Induced Polarization) data. The basic of TDIP is utilization
electrical and polarization properties in the mineralized rock. In
the process, the value of resistivity and chargeability inverted
using AGI Earth Imager 2D. Results of 2D inverted resistivity and
chargeability has been modeled in the parameters of epithermal
deposition using Surfer. There are 4 parameters of epithermal
deposition, that is body of intrusive rocks, mineralization,
alteration, and massive silica. To determine the distribution of
gold deposits, it is done in 3D modeling using Rock Works. From
the results of research, there are conductive and resistive rocks in
the study area. Gold deposits in CJL associated with silica
alteration and resistive massive silica. Resistive rocks, over 250
Ωm, associated with lapilli tuff, volcanic rocks, and a large body
of intrusive rock. Rocks contains of Au-Cu mineral deposits
characterized by high values chargeabilitas, over 250 ms.
Potential location of gold-rich deposits are profile CJL 600, CJL
300, CJL 100, CJL 0, CJL -400, and CJL -600.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 621.367 Bag e |
| Uncontrolled Keywords: | chargeabilitas, emas, epitermal, resistivitas, TDIP |
| Subjects: | Q Science > Q Science (General) > Q337.5 Pattern recognition systems |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | - Taufiq Rahmanu |
| Date Deposited: | 03 Dec 2019 07:38 |
| Last Modified: | 03 Dec 2019 07:38 |
| URI: | http://repository.its.ac.id/id/eprint/72170 |
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