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All Journal Jurnal Teknologi Mineral dan Batubara Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Jurnal Teknologi Mineral dan Batubara
Prasetyo, Ezza Ray Raditya
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Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology

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ESTIMASI SUMBERDAYA ANDESIT MENGGUNAKAN PENDUGAAN GEOFISIKA DENGAN METODE TAHANAN JENIS SCHLUMBERGER DI DAERAH TANJUNGSARI, KABUPATEN BOGOR, PROVINSI JAWA BARAT Septiani, Kasih; Prasetyo, Ezza Ray Raditya; Apriliani, Siska; Pratomo, Septyo Uji
Prosiding Seminar Teknologi Kebumian dan Kelautan Vol 3, No 1 (2021)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/p.semitan.2021.2016

Abstract

Penelitian ini bertujuan untuk mengetahui bentuk endapan, jenis, dan korelasi batuan di bawah permukaan, serta memperkirakan estimasi sumberdaya andesit berdasarkan 38 titik akuisisi data menggunakan pendugaan geofisika dengan metode tahanan jenis Schlumberger pada area seluas 1x1,5 km2 di daerah Tanjungsari, Kabupaten Bogor, Provinsi Jawa Barat. Penelitian ini didukung oleh hasil pemetaan geologi semi detail berskala 1:5.000  yang telah dilakukan pada tahap sebelumnya. Hasil pengolahan data menunjukkan tahanan jenis andesit: 61,11–606,14 ohm-m; breksi: 40,89-58,91 ohm-m; batulempung: 0,87-20,80 ohm-m; dan batupasir: 21,13-39,97 ohm-m. Ketebalan batuan andesit berkisar antara 6—80 meter pada titik akuisisi data S3, S6—S11, S13—S19, S21—S26 dan S28—S30. Interpretasi hasil korelasi dari 38 titik akuisisi data menunjukkan bahwa satuan andesit menerobos satuan batulempung membentuk sill. Batas kontak antarsatuan dibatasi oleh sesar-sesar naik di bagian utara dan selatan yang memanjang dari barat ke timur yang diikuti oleh sesar-sesar normal berarah utara-selatan sebagai sesar penyerta. Estimasi sumberdaya berdasarkan pemodelan 3-dimensi dengan peranti lunak Surpac diperoleh volume sumberdaya andesit sebanyak 4.698.358 m³.
INVESTIGASI KEBERADAAN DAN KETERKAITAN UNSUR KELUMIT PADA BATUBARA FORMASI MANUMBAR PIT Y-2 DI CEKUNGAN KUTAI, KALIMANTAN TIMUR Gibran, Akhmad Khahlil; Prasetyo, Ezza Ray Raditya; Purwasatriya, Eko Bayu; Mulyanto, Didik Jati
Jurnal Teknologi Mineral dan Batubara Vol 21 No 1 (2025): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol21.No1.2025.1481

Abstract

The Kutai Basin, renowned as a coal-bearing basin, ranks among the largest basins in Indonesia. Coal consists of various constituents, including major elements, trace elements, macerals, mineral impurities, and other components. The purpose of this research is to conduct a more in-depth analysis of the content of coal, with a specific focus on trace components. This study aimed to investigate the features, potential, enrichment of trace elements, and their correlation with the total sulfur and ash content in coal. An examination using ICP-OES (Inductively Coupled Plasma – Optical Emission Spectrometer) was conducted on 11 coal seams from Y-2 PIT. This analysis aimed to identify the level of trace elements, main elements, total sulfur, and ash content in the coal. The study's findings revealed that the elements' distribution and characteristics on the chemostratigraphy analysis chart were categorized into five distinct features, subsequently represented as chemozone. Moreover, it is established that the area with the highest potential is chemozone 3, where all trace elements undergo substantial enrichment within this region. It is well-established that several trace elements exhibit a positive correlation with changes in the overall sulfur and ash content of coal. The trace elements shown to be positive correlation linked to variations in the overall sulfur level are Cd, Mn, and Pb. On the other hand, the elements Cr, Cu, Pb, and V are tied positive correlation with changes in the ash content value. This study expands our understanding of the distribution and concentration of trace elements in coal from Indonesia's largest coal producing area. This data can be utilized to create more precise geochemical and stratigraphic models in the future.
INVESTIGASI KEBERADAAN DAN KETERKAITAN UNSUR KELUMIT PADA BATUBARA FORMASI MANUMBAR PIT Y-2 DI CEKUNGAN KUTAI, KALIMANTAN TIMUR Gibran, Akhmad Khahlil; Prasetyo, Ezza Ray Raditya; Purwasatriya, Eko Bayu; Mulyanto, Didik Jati
Jurnal Teknologi Mineral dan Batubara Vol 21 No 1 (2025): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol21.No1.2025.1481

Abstract

The Kutai Basin, renowned as a coal-bearing basin, ranks among the largest basins in Indonesia. Coal consists of various constituents, including major elements, trace elements, macerals, mineral impurities, and other components. The purpose of this research is to conduct a more in-depth analysis of the content of coal, with a specific focus on trace components. This study aimed to investigate the features, potential, enrichment of trace elements, and their correlation with the total sulfur and ash content in coal. An examination using ICP-OES (Inductively Coupled Plasma – Optical Emission Spectrometer) was conducted on 11 coal seams from Y-2 PIT. This analysis aimed to identify the level of trace elements, main elements, total sulfur, and ash content in the coal. The study's findings revealed that the elements' distribution and characteristics on the chemostratigraphy analysis chart were categorized into five distinct features, subsequently represented as chemozone. Moreover, it is established that the area with the highest potential is chemozone 3, where all trace elements undergo substantial enrichment within this region. It is well-established that several trace elements exhibit a positive correlation with changes in the overall sulfur and ash content of coal. The trace elements shown to be positive correlation linked to variations in the overall sulfur level are Cd, Mn, and Pb. On the other hand, the elements Cr, Cu, Pb, and V are tied positive correlation with changes in the ash content value. This study expands our understanding of the distribution and concentration of trace elements in coal from Indonesia's largest coal producing area. This data can be utilized to create more precise geochemical and stratigraphic models in the future.
Co-Authors Apriliani, Siska Eko Bayu Purwasatriya, Eko Bayu Gibran, Akhmad Khahlil Mulyanto, Didik Jati Pratomo, Septyo Uji Septiani, Kasih