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All Journal Jurnal Geomine Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Mining Science and Technology Journal Journal of Mining Insight Journal of Engineering Science and Technology Applications Jurnal Geosaintek
Jamal Rauf Husain
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Environmental Science Public Health

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Journal : Journal of Mining Insight

 1 
Analisa Pengaruh Batuan Asal Terhadap Profil Nikel Laterit Menggunakan Analisis XRF Dan Petrografi Di Daearah Kolaka Utara Husain, Jamal Rauf; Harwan, Harwan; Mustakim, Mustakim
Jurnal of Mining Insight Vol 1 No 3 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i3.210

Abstract

Nickel is one of the metals needed by humans. In general, nickel can be formed primarily or secondarily, known as nickel laterite. Nickel deposits in Indonesia are only found in the form of nickel laterite. The parent rock of nickel laterite deposits is ultrabasic rock, especially from the types of harzburgite, dunite, and other peridotites. The data collection technique used is to take data related to the research, both primary and secondary data. Primary data includes outcrop data (megascopic description) at the research location, exploration drill data to determine the thickness of the nickel laterite layer and the content of its elements and rock sample data for petrographic thin section analysis. Sampling was carried out in block A. While secondary data includes data on the general condition of the company, and a map of the research location. 1. The original rock analyzed petrographically is serpentinezed harzburgite. The minerals contained are orthopyroxene, olivine, clinopyroxene, and opaque minerals. The weathering level of the nickel laterite profile in the limonite zone is higher than the saprolite zone because in the saprolite zone most of the rocks are small in size and the original rocks affect the nickel laterite profile that is formed, but are still supported by other factors, namely topography, climate, geological structure, vegetation and time.
Analisis Perbandingan Kadar Nikel Hasil Pengeboran dengan Hasil Penambangan pada PT Ghanesa Wana Utama Aldiyansyah; Husain, Jamal Rauf
Jurnal of Mining Insight Vol 2 No 1 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i1.259

Abstract

The process of mining nickel resources at PT Gahnesa Wana Utama has problems in the form of differences in nickel content between the drill data and mining results data. Therefore, this study aims to determine the proportion of nickel grade values from drilling to mining results and to determine the factors that cause changes in nickel content values from drilling and mining results. The research method is carried out by analyzing the results of drill data with mining results. The results of the study showed that the drilling results obtained an average grade value of 1.64%, while mining results obtained an average grade value of 1.42%. This study shows that there has been a comparison of the difference in Ni content based on the results of drilling and mining results, namely 0.22%. The causative factors of changes in nickel levels are stagnant water in the stockpile, use of used sacks for samples, dredging of stockpile floors that are less clean, operators who are less attractive in ore collection, sampling errors and preparation errors.
Co-Authors ., Agustinus ., Safruddim A. M. Imran Adi Maulana, Adi Aldiyansyah Arif Nurwaskito Arif Nurwaskito Aulia, Rizky Nurul Azrul, Muh. Zulfahmi Egi Rianto Pradana Fajrin, Muh. Haerany Sirajuddin Harwan Harwan Hidayah, Bahrul Husain, Ratna Idham Idham Jamaluddin Jamaluddin La Ode Dzakir Maria Maria Meinarni Thamrin Meutia Farida Muhammad Syahril Mustakim Mustakim Nawir, Alfian Nur Asmiani Nurul Ikhsan Pachri, Hendra Prasetyawati Umar, Emi Rohaya Langkoke Sultan . Syamsuddin Syamsuddin Tamar, Khadijah Rezkiani Wakila, Muhammad Hardin