Buletin Sumber Daya Geologi
Vol 19 No 3 (2024): Buletin Sumber Daya Geologi

ANALISIS ALTERASI DAN MINERALISASI MENGGUNAKAN METODE XRD, PETROGRAFI DAN MINERAGRAFI DAERAH PROSPEK CIHAUR, SIMPENAN, KABUPATEN SUKABUMI: ALTERATION AND MINERALIZATION ANALYSIS USING XRD, PETROGRAPHY AND MINERAGRAPHY METHODS, CIHAUR PROSPECT AREA, SIMPENAN, SUKABUMI REGENCY

Finlandini, Nadya (Unknown)
Joko Suprapto, Sabtanto (Unknown)
M I Shiddiq, Asep (Unknown)
Novalia, Lia (Unknown)
Syafrudin Anshar, Muhammad (Unknown)



Article Info

Publish Date
13 Nov 2024

Abstract

The research is located in Cihaur, Sukabumi, West Java, occupied by the Jampang Formation, located in the Sunda-Banda Arc. The magmatic activity and complex tectonic setting in the arc have the potential to cause mineralization, resulting in several types of ore deposits such as porphyry, epithermal and skarn. The objectives of this research are to identify alteration, mineralization, and ore deposit types in the research area. The research methodology includes exploration drilling, alteration mapping, and laboratory analysis using XRD, petrography, and mineragraphy methods. Alteration of the research area consists of argillic alteration (illite, kaolin, and smectite), propylitic alteration (chlorite, epidote, and calcite), marbellized (95% calcite), and skarnization (clinopyroxene, wollastonite, chlorite-skarn, and epidote-skarn). In the skarn there are indications of a prograde stage characterized by pyroxene and wollastonite minerals, and a retrograde stage characterized by epidote, calcite, and chlorite minerals. Mineralization of the research area consists of galena, sphalerite, pyrrhotite, pyrite, and chalcopyrite. The presence of pyroxene and wollastonite minerals, as well as galena and sphalerite indicate that the skarn formed in the intermediate to distal zone.

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Journal Info

Abbrev

bsdg

Publisher

Subject

Education Energy Engineering Environmental Science

Description

uletin Sumber Daya Geologi merupakan Makalah berkala ilmiah terakreditasi LIPI bidang mineral, energi fosil, dan panas bumi. Makalah ini terbit tiga nomor dalam satu tahun pada bulan Mei, Agustus dan November. Pada Tahun 2010, Buletin Sumber Daya Geologi mendapat Akreditasi B sebagai majalah ...