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All Journal JGE (Jurnal Geofisika Eksplorasi) Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geomine JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal GEOSAPTA International Journal of Applied Sciences and Smart Technologies Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Madaniya JNANALOKA Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal PkM (Pengabdian kepada Masyarakat) Idea Pengabdian Masyarakat Journal of Geology and Exploration Journal of Mining Insight Journal of Engineering Science and Technology Applications Cognitia : International Engineering Journal JURNAL PERTAMBANGAN
Alam Budiman Thamsi
Universitas Muslim Indonesia
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Resources Estimation of Laterite Nickel Using Ordinary Kriging Method at PT Mahkota Semesta Nikelindo District Wita Pond Morowali District Nawir, Alfian; Thamsi, Alam Budiman; Sanjaya, Harta; Aswadi, Muhammad
International Journal of Applied Sciences and Smart Technologies Volume 05, Issue 02, December 2023
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v5i2.6939

Abstract

Resources have economic value, form, quality, quantity, grade, geological characteristics and certain sustainability to be extracted economically. Mineral resources decrease based on the level of geological confidence into the Inferred, Indicated and Measured category. This study aims to assess the potential of nickel laterite resources and the distribution of nickel mineralization levels in the study area using the Ordinary Kriging geostatistical method. The research methodology was inspired by statistical and geostatistical analysis, starting with univariant statistical analysis, spatial statistics, bivariant statistics and resource estimation. for later use in determining the distribution of mineralization grades and classifying nickel laterite resources using the RKDS (Relative Kriging Standard Deviation) calculation. This method is used to estimate nickel content in a block whose grade value is unknown. The results of statistical calculations using Ordinary kriging obtained an average grade value of 2.90% Ni. Mineralization data for nickel content in limonite layers with Ni content of 0.5 – 1.3% and in saprolite layers with Cut of Grade (COG) Ni, 1.4 – 3.1% Ni in limonite and saprolite layers are projected in the block model. The estimated tonnage of nickel resources using the OK method is 670,837.83 tonnes. The results of laterite nickel resource classification using the RKSD (Relative Kriging Standard Deviation) calculation are classified into measured resources (Measured).
Analisis Perbandingan Pencampuran Bijih Nikel High Grade Limonit Dan Low Grade Saprolit Untuk Memenuhi Permintaan Pasar Pada PT Mandiri Mineral Perkasa Thamsi, Alam Budiman; Yusuf, Firman Nullah; Rahma, Kismu; Hardin Wakila, Muhamad
JNANALOKA Vol. 04 No. 02 September Tahun 2023
Publisher : Lentera Dua Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36802/jnanaloka.2023.v4-no2-63-68

Abstract

PT Mandiri Mineral Perkasa is a contractor company operating in the field of nickel mining and has fulfilled the market/smelter demand requirements for Ni 1.5% - 2.0%, by setting a Cut Of Grade (COG) collection limit of Ni 1.4%. The aim of this research is to determine the Ni content of high grade limonite and low grade saprolite at the research location, and to determine the Ni content of high grade limonite and low grade saprolite, and to determine the additional tonnage and levels to meet market demand. In this study, the blending method was used, a mixing process between different low grade and high grade nickel ores to obtain appropriate mixture results, so that from the results of blending/mixing high grade limonite nickel ore, Ni 1.43 and Fe 26.71% were obtained, and for low grade saprolite you get 1.59% Ni and 26.73% Fe, for the results of blending/mixing high grade limonite and low grade saprolite you get 1.51% Ni and 26.72% Fe, efforts can be made to meet demand Ni 1.8% market with 5,000 tons needs to increase the grade and tonnage, namely, Ni grade 2.32% and 2,111.45 tons.
MODEL OF LATERITE NICKEL DEPOSITS BASED ON LGSO AND HGSO VALUES PT MITRA KARYA AGUNG LESTARI Asmiani, Nur; Thamsi, Alam Budiman; Nompo, Supardin; Bakri, Suryanto; Tukloy, Muh. Yusril Affandy; Harmitun, Harmitun
JGE (Jurnal Geofisika Eksplorasi) Vol. 10 No. 1 (2024)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v10i1.305

Abstract

The laterite nickel deposit model provides information about the form of laterite nickel deposits below the surface, which can be used as one of the considerations in the implementation of mining activities. The purpose of conducting this research is to determine the distribution model of nickel laterite deposits in 3 dimensions (3D) and to determine the amount of nickel laterite reserves based on high-grade saprolite ore (HGSO) and low-grade saprolite ore (LGSO) values in the DH Block. In this research, Inverse Distance Weighted (IDW) is used to estimate nickel laterite resources, which are applied using mining software Surpac 6.3.2 to produce a model in 3D form. The data used are laterite nickel content data (assay), x, y, and z coordinate data (collar), survey data, and lithology data. Based on IDW estimation results with a Cut Off Grade (COG) value of 1.3 in the DH Block of PT Mitra Karya Agung Lestari, High-Grade Saprolite Ore (HGSO) values were obtained at Ni content > 1.7 and Low-Grade Saprolite Ore (LGSO) at Ni content > 1.3, with a tonnage value of 111.994 tons of HGSO and 371.044 tons of LGSO.
Alteration and Mineralisation of Sulphide Deposits in The Lipukasi Area, Barru Regency, South Sulawesi Province Wakila, Muhamad Hardin; Harwan; Thamsi, Alam Budiman; Aulia, Rizky Nurul; Aulia, Rieska Dewi
Cognitia : International Engineering Journal Vol. 1 No. 3 (2025): Cognitia : International Engineering Journal
Publisher : Candela Edutech Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63288/ciej.v1i3.15

Abstract

In the Lipukasi area, Barru Regency, South Sulawesi Province, sulphide deposits and complex alteration processes have been discovered. However, information regarding the alteration and mineralisation that has developed in this area is not yet available, so further research is needed to identify the types of alteration and mineralisation present in the Lipukasi area, Barru Regency, South Sulawesi Province. The purpose of this study was to determine the type of hydrothermal alteration and mineralisation that developed in the study area. The analytical method used in this research first carried out megaskopis analysis to determine the physical properties of the sample. After that, laboratory analyses of mineragraphy and X-Ray Diffraction (XRD) were carried out. The results of megascopic analysis of the two research samples are an igneous rock with a fresh grey colour, a weathered yellowish-brown colour, a massive structure, an intermediate rock type, a crystalline texture, namely holocrystalline, a granularity, namely phaneroparabolic, a relationship, namely equigranular, and a crystal shape, namely euhedral. The minerals found from the results of mineralographic and XRD analysis are Hematite, mafic mineral, goethite, silica mineral,  sulphide mineral (galena, chalcopyrite, pyrite, covellite), quartz, and kaolinite. So it can be concluded the minerals found in the study area are hematite (Fe₂O₃), mafic minerals, silica minerals, goethite (FeO₂H), galena (PbS), covellite (CuS), chalcopyrite (CuFeS₂), pyrite (FeS₂), kaolinite and quartz (SiO₂). Based on the indicated mineral composition, the type of alteration that developed in the study area is propylitic
Mineralogy and Geochemistry of Rare Earth Elements in Manganese Deposits in the Anabanua District, Barru Regency, South Sulawesi Province, Indonesia Wakila, Muhamad Hardin; Chalik, Citra Aulian; Thamsi, Alam Budiman; Jafar, Nurliah; Harwan; Umar, Emi Prasetyawati
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 4 (2025): JGEET Vol 10 No 04 : December (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.4.24882

Abstract

Research programmes on rare earth elements have not been widely carried out, especially on manganese deposits, even though manganese deposits also contain rare earth elements. Research on manganese mineralogy has been done before, however, research has not focused on rare earth metal elements found in manganese deposits, so further research is needed to find out the mineralogy, geochemistry, and gardes of rare earth metal elements in manganese deposits in the tropics. There are 3 methods of analysis at once, namely petrographic, XRD, and ICP-OES methods. The minerals found in manganese samples in the study area are: Albite, Chlorite, Plagioclase, Orthoclase, Quartz, Chlorite, Opaque, Pyrolusite, Muscovite, Diopside, Hematite, Rodochroite, Manganochromite and Manganite. Rare earth element levels in manganese deposits are Yttrium (8.7-35.5 ppm), Scandium (4-28 ppm), Lanthanum (5.3-122 ppm), Cerium (9.4-198 ppm), Praseodymium (1.3-23.6 ppm), Neodymium (690.9), Samarium (1.2-15. 4 ppm), Europium (0.6-3.5 ppm), Gadolinium (1.4-13.5 ppm), Terbium (0.241.75 ppm), Dysprosium (1.4-7.9 ppm), Holmium (0. 3-1.3 ppm), Erbium (0.8-3.2 ppm), Thulium (0.1-0.4 ppm), Ytterbium (0.8-2.4 ppm) and Lutetium (0.14-0.39 ppm). These results indicate that manganese deposits in Anabanua Village, Barru Regency, have the potential to be a source of LREE (La, Ce, Pr, Nd, and Sm) with concentrations exceeding those of several deposits around the world, making them worthy of consideration in strategic mineral exploration in Indonesia in general.
Implementasi Location Based Advertising Sebagai Media Promosi Pada Rumah Jamur Takalar Ilsan, Mais; Husain, Tsalis Kurniawan; Thamsi, Alam Budiman; Amran, Farizah Dhaifina
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 3, No 4 (2023): Abdira, Oktober
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v3i4.394

Abstract

This community service activity involves MSME Rumah Jamur Takalar as the partner. The partner's problem is the lack of knowledge and skills in marketing their products via online platforms and the business location/business name is not yet known by the people of Takalar. The purpose is to help the partner expand their market reach. The specific target to be achieved is the implementation of Location Based Advertising (LBA) as a means of partner’s promotion. The methods that used are mediation and training methods. The result of this activity is that Rumah Jamur Takalar has successfully registered and activated their business account on My Ads Telkomsel as a platform that provides LBA (Location Based Advertising). The results of LBA's performance as a promotional media show that LBA activities are 100% successful in delivering advertising content according to specific target locations (Takalar Regency and its surrounding areas).
KARAKTERISTIK MINERALOGI BIJIH BESI DAERAH KADONG-KADONG, KABUPATEN LUWU, PROVINSI SULAWESI SELATAN Thamsi, Alam Budiman; Bakri, Hasbi; Harwan, Harwan; Nasrullah, Nasrullah; Aswadi, Muhammad
Jurnal Pertambangan Vol. 5 No. 4 (2021): November 2021
Publisher : Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jp.v5i3.454

Abstract

Bijih besi di Indonesia tersebar di antaranya di Pulau Sulawesi, Pulau Sumatera, Pulau Jawa dan Pulau Kalimantan. Pada Pulau Sulawesi telah dilakukan penelitian terkait bijih besi, di antaranya di daerah Lappadata, Bontocani, Tanjung, dan Pakke yang berada di Kab. Bone. Sedangkan bijih besi di daerah Kadong-Kadong Kab. Luwu belum dilakukan penelitian sehingga hal inilah yang mendasari dilakukannya penelitian. Penelitian ini bertujuan untuk mengetahui jenis mineral bijih, mineral ikutan, tektur secara mikroskopis dan paragenesa bijih besi. Metodologi penelitian dilakukan dengan sampling di lapangan dan analisis laboratorium yaitu analisis X-Ray Diffraction (XRD) dan analisis Mineragrafi, dengan memadukan informasi lapangan yang keseluruhannya dikaji, dianalisis, serta disintesis secara komprehensif buat mendefinisikan kesimpulan. Pada daerah penelitian terdapat perbukitan yaitu perbukitan bergelombang kuat dan bergelombang sedang. Intrusi batuan beku pada daerah penelitian adalah dike. Mineral bijih yang dijumpai pada stasiun 1 secara mikroskopis yaitu Magnetit, Hematit, Goetit, Pirit, Pirolusit, Kuarsa. Mineral bijih pada stasiun 2 secara mikroskopis yaitu Goetit, Magnetit, Hematit, Pirit, dan Kuarsa. Mineral bijih yang dijumpai pada stasiun 3 yaitu Hematit, Magnetit, Goetit, Siderit dan Kovelit. Tekstur bijih diidentifikasi dengan menggunakan analisis mineragrafi pada sayatan poles. Tekstur primer bijih yang diamati berbentuk tekstur intergrowth, tekstur replacement, tekstur granular, tekstur open space filling, dan tekstur inklusi akibat pendinginan magma. Komposisi mineral bijih besi yaitu terdiri mineral Magnetit, Hematit, Siderit, dan Goetit. Mineral ikutan terdiri atas mineral Kuarsa, Pirit dan Kovelit. Paragenesa berdasarkan kenampakan tekstur mineral daerah penelitian yaitu dimulai dari pembentukan mineral Magnetit, Siderit, Hemati, Pirit kemudian Geotit dan Kovelit.
STUDI PENGARUH MEDIA PENGGERUS TERHADAP NILAI P80 PADA BIJIH KROMIT Nurhawaisyah, Sitti Ratmi; Jafar, Nurliah; Thamsi, Alam Budiman; Juradi, Muhammad Idris; Firdaus, F.; Bakri, Suriyanto
Jurnal Pertambangan Vol. 5 No. 3 (2021): Agustus 2021
Publisher : Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jp.v5i3.463

Abstract

Bijih kromit merupakan salah satu bahan galian yang memiliki kekerasan tertinggi dan berpengaruh pada kemampuan tergerusnya. Semakin keras suatu mineral maka semakin sulit untuk digerus. Penggerusan merupakan proses kominusi yang menggunakan energi terbesar dan memberikan pengaruh pada karakteristik benefisiasi mineral dalam pemrosesan selanjutnya. Berhasilnya suatu proses penggerusan bergantung pada pemilihan kondisi operasi yang sesuai. Salah satu parameter operasi yang mempengaruhi kinerja penggerusan ball mill adalah media penggerusan. Oleh karena itu tujuan utama penelitian ini adalah untuk mengetahui pengaruh media penggerus pada proses reduksi ukuran bijih kromit yang ditinjau dari nilai P80. Metode yang digunakan dalam penelitian ini yaitu memodifikasi penggunaan media penggerus pada ball mill skala laboratorium, sehingga terdapat dua perlakuan yang berbeda pada sampel. Proses penggerusan dilakukan selama 15 menit. Pada percobaan pertama, dilakukan penggerusan menggunakan media penggerus berupa bola-bola baja dan sekat (lined). Sedangkan percobaan kedua dilakukan hanya menggunakan media penggerusan bola-bola baja, tanpa sekat (lined). Hasil percobaan tersebut menunjukkan bahwa penggerusan dengan menggunakan dua media penggerus yaitu bola-bola baja dan sekat (lined) memberikan ukuran produk yang lebih halus dengan nilai P80 yaitu 2,888 mm dibandingkan dengan penggerusan yang menggunakan satu media penggerus yaitu 4,276 mm.
Co-Authors A. Arizal A. F. Heriansyah A. Maulana A. S. Munir Abdul Salam Munir Agus Ardianto Budiman Ahmad Fauzie Ahmad Gazali, Ahmad Alfian Nawir Alfian Nawir Alfian Nawir Almarabi, Laode Muhammad Imaduddin Amran, Farizah Dhaifina Andi Fadli Heriansyah Andi Fahdli Heriansyah Anshariah Anshariah Anshariah Anshariah Anshariah, Anshariah Aprilia, Riska Dwi Ardhana, Muh. Reza Arif Nurwaskito Aulia, Rieska Dewi Aulia, Rizky Nurul AYU LESTARI Badduwahe, Harianto Bakri, Hasbi Bakri, Hasbi Bakri, Suriyanto Bakri, Suryanto C. A. Chalik C. D. Sangadji Chalik, Citra Aulian Dirgahayu Lantara Djamaluddin Djamaluddin E. P. Umar F, Firdaus F. Firdaus F. N. Yusuf Farizah Dhaifina Amran Febrianto Wajar, Kurniawan Firaldy S Firdaus Firdaus F Firdaus Firdaus Firdaus, F. Firman Nullah Yusuf Fitri Amalia H. Anwar Habibie Anwar Habibie Anwar Harmitun, Harmitun Harwan Harwan Harwan Harwan, Harwan Hasbi Bakri I. Nur Idris Juradi, Muhammad Irwan, Muhammad Reza Ardhana Irzal Nur, Irzal Izzulhaq Ainunnur L.O.M.Y. Amsah Limbanadi, Iftitah Vinny Aurelia M. Aswadi Maharza, Agvir Fajri Mais Ilsan, Mais Miftah Farid Muhammad Akbar Muhammad Aswadi Muhammad Furqan Al Faruqi Muhammad Idham Farid Muhammad Nur Alim Muhdi, Irawan Nasrullah Nasrullah Nasrullah Nasrullah Nawir , Alfian Nawir, Alfian Ningsih, Apriana Ningsih, Apriyana Nompo, Supardin Nur Asmiani Nurhawaisyah, Sitti Ratmi Nurhawaisyah, Sitti Ratmi Nurliah Jafar Nurliah Jafar Nurliah Jafar, Nurliah Nurwaskito, Arif Pangeran Sulfahmi Prasetyawati Umar, Emi R. M. Ismail Rachman, Muhammad Fathur Rahareng, Sutriani Rahma, Kismu Ratmi Nurhawaisiah, Sitti Rauf Husain, Jamal Reynaldhi Yogi Pranata S. R. Nurhawaisyah Sahabuddin Sahabuddin Sanjaya, Harta Saputra, Isroq Aditya Ekyan Sri Widodo Sukamto, Purwoto Suryanto Bakri Syamsul Bakhri Tholib, Mohammad Tri Andriyani Kandora Tsalis Kurniawan Husain Tsalis Kurniawan Husain, Tsalis Kurniawan Tukloy, Muh. Yusril Affandy Wahyu Maulana, Wahyu Wakila, Muhammad Hardin Wardana, Lubis Widodo , Sri