Eksplorasi mineral emas sistem epitermal sulfida tinggi pada daerah prospek C Jl.Jawa barat berdasarkan data TDIP (time domain induced polarization)

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. ============================================================================================================= 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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