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All Journal Jurnal Ilmiah MTG Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal of Applied Geology Jurnal Ilmiah Geomatika
Pratomo, Septyo Uji
Jurusan Teknik Geologi Fakultas Teknologi Mineral UPN Veteran Yogyakarta
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Journal : Journal of Applied Geology

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Hydrothermal Alteration of High Sulfidation Epithermal Deposits in Secang Area, Tulungagung, East Java, Indonesia Anastasia Dewi Titisari; Septyo Uji Pratomo; Arifudin Idrus
Journal of Applied Geology Vol 5, No 2 (2020)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9686.623 KB) | DOI: 10.22146/jag.55235

Abstract

This research aims to determine geological condition and alteration in an epithermal high sulfidation mineralization as an initial guide for further exploration stages. Detailed geological mapping with scale of 1:12,500 is conducted to identify geological aspects and distribution of alteration zones. Selected rocks samples were prepared for laboratory analysis which are petrography, XRD (X-Ray Diffraction), and FA-AAS (Fire Assay-Atomic Absorption Spectrometry) analyse. Geological condition of the study area consists of six rock units including andesite lava, andesite breccia, diorite intrusion, polymict breccia, limestone, and alluvial deposit. Geological structures found are left strike-slip fault with right strike-slip fault as accompany. Result of XRD analysis shows the presence of clay minerals group: smectite, kaolinite, illite, diaspore, alunite, and pyrophillite. The alteration zones of study area are propylitic, argillic, advance argillic, and silisification zones. The further exploration stage is recommended to focus at the southwest and northeast of study area.
Co-Authors Afrilita Afrilita Afrilta Afrilita Anastasia Dewi Titisari Apriliani, Siska Arifudin Idrus Arifudin Idrus Brigita Nadya Eman Dian Rahma Yoni, S.T., M.T. Eman, Brigita Nadya Ezza Ray Raditya Prasetyo Fahrudin Yusuf Saputro Galih Purnama Parikesit Huzaely Latief Sunan Huzaely Latief Sunan Idarwati Idarwati Idham Khaliq Yudhistira Intan Paramita Haty Kasih Septiani Prasetyo, Ezza Ray Raditya Puthut Prihartono Septiani, Kasih Setia Pambudi Setia Pambudi Siska Apriliani Sunan, Huzaely Latief Titisari, Anastasia Dewi