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All Journal Buletin Sumber Daya Geologi Jurnal Geominerba
Faisal, Reza Mochammad
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Earth & Planetary Sciences Education Energy Engineering Environmental Science Other

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ANALISIS UNIVARIAT DAN MULTIVARIAT CONTO SEDIMEN SUNGAI DALAM PENENTUAN POTENSI MINERALISASI LOGAM DI HALMAHERA BAGIAN TIMUR, PROVINSI MALUKU UTARA: UNIVARIATE AND MULTIVARIATE ANALYSIS OF STREAM SEDIMENT SAMPLE FOR DETERMINATION OF METAL MINERALIZATION POTENTIAL IN THE EASTERN PART OF HALMAHERA, NORTH MALUKU Faisal, Reza Mochammad; Nugroho, Irfan Budiaji; Priadi, Bambang
Buletin Sumber Daya Geologi Vol. 15 No. 1 (2020): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4075.249 KB) | DOI: 10.47599/bsdg.v15i1.285

Abstract

Geochemical research used the analysis method of -80 mesh of active stream sediment samples is one of the early phase exploration specially in finding out metallic mineral deposits. Easternpart of Halmahera with its complex geologic setting and a metallogenic region is being potential to form metallic deposits, which create some variation and interesting geochemical performances. The geochemistry of stream sediment data by means in the form of elements distribution maps represent the basic important information of mineralization indications, which enable for detail follow up research, specifically nickel mineralization associated with the Ultrabasa Complex lithology. Interpretation of geochemical data in the study area with univariate and multivariate statistical analysis approaches consisting of elements of Cu, Pb, Zn, Co, Ni, Mn, Ag, Fe, Cr, and Au, the process of enrichment of geochemical elements in the surface environment is shown by the spatial association of Co, Ni, Fe and Mn, namely the enrichment of elements due to chemical binding (scavenging) by Fe and Mn oxides. Based on the kindship of elements or relations between elements obtained two groups of elements, namely the bonding elements of Cu-Pb-Zn-Ag-Cr and Co-Ni-Mn-Fe-Au, but not all groups of element associations can be related to the lithology that develops in the study area.
KARAKTERISTIK UNSUR TANAH JARANG (LTJ) LANTANUM DAN CERIUM PADA LAPUKAN GRANIT DI DAERAH PARMONANGAN Musyaffa, Muhammad Ayyasy; Patonah, Aton; Faisal, Reza Mochammad
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 9 No 1 (2024): Jurnal Geominerba - 2024
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v9i1.157

Abstract

As a critical mineral category, the demand for rare earth metals (LTJ) has increased significantly. Rare earth metals, Lanthanum (La) and Cerium (Ce), are utilized in a variety of contemporary technologies. Rare earth elements such as La and Ce are present in rare earth element-bearing minerals and can be found in granitoid-weathered deposits. The purpose of this study is to determine the characteristics of La and Ce elements conttained in ion adsorption deposits resulting from the weathering of granite boulders, as well as their relationship to other chemical elements. In this study, acid igneous rock weathering samples obtained from drilling in Parmonangan District, North Tapanuli Regency, North Sumatra were analyzed to identify La and Ce element-bearing minerals, enrichment zones, and types of rare earth element deposits. La is enriched in the rare earth element accumulation zone of the ion adsorption precipitate model, while Ce is enriched in the leaching zone, according to the findings of the investigation. This occurs as a result of the movement of La element during weathering, which is then bound by alteration minerals such as kaolinite. As a result of the oxidation process in the rare earth element leaching zone, the element Ce has a distinct ion value, resulting in limited mobility.
Co-Authors Aton Patonah, Aton Bambang Priadi Musyaffa, Muhammad Ayyasy Nugroho, Irfan Budiaji