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INTAN Jurnal Penelitian Tambang
Published by Universitas Papua
ISSN : 26553473     EISSN : 27232727     DOI : https://doi.org/10.56139/intan.v4i2.85
Core Subject : Economy, Science, Engineering,
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering
Fokus dan lingkup Jurnal INTAN adalah Pertambangan baik dalam pengelolaan dan pengusahaan mineral atau batubara yang meliputi eksplorasi, konstruksi, penambangan, pengolahan dan/atau pemurnian atau pengembangan dan/atau pemanfaatan, pengangkutan dan penjualan, kegiatan reklamasi dan pascatambang, kebijakan-kebijakan ekonomi, lingkungan, dan sosial di bidang pertambangan mineral dan batubara. Jadi Jurnal Intan merupakan media untuk menyalurkan pemahaman tentang aspek-aspek sains, teknologi, ekonomi, sosial dan lingkungan dari dunia pertambangan berupa hasil penelitian lapangan atau laboratorium maupun studi pustaka.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 124 Documents
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POTENTIAL VALUE-ADDED MINERALS IN FORMER NICKEL ORE MINING AREAS IN BATU PUTIH SUBDISTRICT, NORTH KOLAKA REGENCY: POTENSI NILAI TAMBAH MINERAL IKUTAN DI AREA BEKAS PENAMBANGAN BIJIH NIKEL DIKECAMATAN BATU PUTIH KABUPATEN KOLAKA UTARA AGRIAL S., MUHAMMAD; Nafiu, Wd. Rizky Awaliah
INTAN Jurnal Penelitian Tambang Vol. 7 No. 2 (2024): INTAN: Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i2.269

Abstract

Nickel is a natural metallic element predominantly found in the Earth's lithosphere. The escalating demand for the resources, especially in industrial development, has made the mining sector a major contributor to the supply of raw materials. The prices and demand for certain commodities increase the economic viability of previously unexploited mining locations. Therefore, abandoned mining sites have regained interest due to their remaining potential for the re-extraction of the resources. This research was carried out in the former nickel ore mining area in the Batu Putih area of ​​North Kolaka using observational and grab sampling methods, followed by X-ray fluorescence (XRF) analysis. The results showed that Ni levels in the samples ranged from 1.27%–1.67%, Fe between 12.03%–19.78%, Co between 0.02%–0.05%, and Al₂O₃ between 2.00%– 3.99%. Even though these three metals have economic potential, they cannot optimally proceed due to regulatory limitations. Estimates of the economic value of metals based on tonnage assumptions show Fe reaching 404,028 USD (1.5 million tons), Co reaching 16,631,208 USD (1.5 million tons), and Al₂O₃ reaching 20,827,800 USD (1.5 million tons). Developing comprehensive regulations is needed to support the sustainable management of these metals.
EVALUATION OF MINE SUMP AT PT. BERKAT ANUGERAH SEJAHTERA, PT. ANTANG GUNUNG MERATUS SITE, SOUTH KALIMANTAN: EVALUASI MINE SUMP PADA PT. BERKAT ANUGERAH SEJAHTERA SITE PT. ANTANG GUNUNG MERATUS KALIMANTAN SELATAN Ismail, Ardhan; Winonazada, Rety; Pontus, Albertus
INTAN Jurnal Penelitian Tambang Vol. 7 No. 2 (2024): INTAN: Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i2.276

Abstract

PT. Berkat Anugerah Sejahtera (PT. BAS) is one of the mining contractors operating at PT. Antang Gunung Meratus in South Kalimantan. In its operations, one of the main challenges is the entry of water into the mining pit and managing surface runoff that flows into the mining front. The water entering the pit needs to be properly managed so it can be controlled and concentrated at a single point, referred to as the lowest point. This water management is carried out by constructing a sump or a collection point at the lowest location. The purpose of this study is to understand the dewatering process and measure the runoff volume entering the mine, assess the actual sump capacity, and evaluate the efficiency of the pumping system. Data collection was conducted to compare the planned sump capacity with the actual sump capacity in the field. Rainfall data from the past 10 years were analyzed to determine rainfall intensity and calculate the catchment area of PT. BAS, which spans 121.18 hectares. From this, the runoff volume was calculated to be 25,230.53 m³/day. The study found that the actual sump capacity is 32,215 m³. However, this capacity is likely insufficient to accommodate the total runoff volume entering the mine, suggesting the need for further evaluation of the current sump capacity to improve water management efficiency at the mining site.
EVALUATION OF SURVEY FACTORS ON TRUCK COUNT AND ACHIEVEMENT OF ACTUAL VOLUME OF MINING JULY 2024: EVALUASI SURVEY FACTOR TERHADAP TRUCK COUNT DAN KETERCAPAIAN VOLUME AKTUAL PENAMBANGAN JULI 2024 Fauzi Syaiful Adam
INTAN Jurnal Penelitian Tambang Vol. 8 No. 1 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i1.282

Abstract

The planned mining volume (ore and waste) in July 2024 is 417.723,68 bcm delivered from 4 separate mining fronts. Mining operations use CAT 330-GC and Volvo EC 350DL excavators, along with Volvo A40G articulated dump trucks. The ground survey measurements using the Sokkia Atlas GNSS (Global Navigation Satellite System) obtained a total material mined in July 2024 of 271,100 bcm with a survey factor of 106% acquired from the truck count. In the July 2024 mining volume achievement, the physical availability parameter contributed positively as it achieved an increase of 4,226 bcm, however the use of availability and productivity parameters adversely contributed resulting in reduction of54,792 bcm and 96,058 bcm respectively. Factors that led to non-achievement of mining volume in July 2024 were lack of actual productivity per hour, ADT standby due to full stockyard and ADT standby waiting for instructions as the ore material were frequentily in wet condition in the Qatar Front area.
THE INFLUENCE OF ADDITIVE BASED ON GLUCOSE ON THE SETTING TIME AND STRENGTH OF DRILLING CEMENT: PENGARUH PENAMBAHAN ADITIF BERBAHAN DASAR GLUKOSA TERHADAP SETTING TIME DAN STRENGTH SEMEN PEMBORAN Resesiyanto, Hastowo; Setyowati, Riris
INTAN Jurnal Penelitian Tambang Vol. 8 No. 1 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i1.287

Abstract

Oil well cement is a cement commonly used in the petroleum industry, especially in cementing operations. This cement is a type of Portland cement and is anhydrous, meaning that the components in the cement will break up and form hydrate components when meeting water and then slowly harden. In the preparation of cement suspensions and during cementing operations, the physical properties of cement suspensions must always be considered because they will affect the quality of cementing results. Research was conducted on a laboratory scale based on experiments to test the physical properties of drilling cement. The experiment aims to test the compressive strength of cement rock and the setting time in the form of initial and final setting time required by the cement suspension to harden as a result of the addition of glucose-based additives. The test results showed that the greater the concentration of glucose-based additives added to the drilling cement suspension, the longer the setting time of the cement suspension and the lower the strength of the cement rock.
GEOCHEMICAL CHARACTERISTICS OF LATERITE NICKEL DEPOSITS IN BLOCK A PT. KAWEI SEJAHTERA MINING, RAJA AMPAT: KARAKTERISTIK GEOKIMIA ENDAPAN NIKEL LATERIT PADA BLOK A PT. KAWEI SEJAHTERA MINING, RAJA AMPAT Haluk, Hermina
INTAN Jurnal Penelitian Tambang Vol. 8 No. 1 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i1.293

Abstract

This study was conducted on Kawei Island, Raja Ampat Regency, Southwest Papua Province, focusing on the geochemical characteristics of laterite nickel profiles in the concession area of ​​PT. Kawei Sejahtera Mining (KSM) is a laterite nickel mining company. The study aims to analyze the geochemical characteristics of laterite nickel profiles using field observation methods and X-ray fluorescence (XRF)--based geochemical analysis of 16 laterite zone samples. The results of the analysis show that the laterite nickel deposit profile of Block A consists of overburden, limonite zone, saprolite, and bedrock with varying thicknesses, reaching 16 meters. Geochemical characteristics show an increase in Ni, Fe, Co, MnO, CaO, and Al₂O₃ elements from the bedrock zone to the overburden, while MgO and SiO₂ levels decrease. Nickel levels increase from the overburden to the limonite and saprolite zones but decrease in the bedrock zone.
STUDY OF CALCULATION OF RUNAWAY DISCHARGE INTO EFO SETTLING POND AT PT GAG NIKEL, SOUTHWEST PAPUA PROVINCE: KAJIAN PERHITUNGAN DEBIT LIMPASAN YANG MASUK PADA SETTLING POND EFO DI PT GAG NIKEL PROVINSI PAPUA BARAT DAYA Wopari, Felice Deglardini; Ginting, Fandi Arapenta; Hajijah, Fajrianti Nur; Tandy, Lia Medy
INTAN Jurnal Penelitian Tambang Vol. 8 No. 1 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i1.294

Abstract

Settling Pond EFO is one of the mine water management facilities managed by PT Gag Nikel, functioning as a water reservoir and sedimentation deposition site. This study evaluates the suitability of the Settling Pond EFO capacity to the incoming runoff discharge, especially in high rainfall conditions. Based on the analysis results, the runoff discharge entering the Settling Pond EFO reached 0.42 m³/second, with a catchment area of ​​0.188 km² and a rainfall intensity of 10.54 mm/hour. The evaluation showed three main findings: (1) There is a change in volume between the initial design of the pond and the actual conditions due to long-term use; (2) The Settling Pond EFO has the potential to be full if it rains for 11 hours; and (3) The Settling Pond capacity has not been optimally utilized, with the remaining unfilled volume of 1,636.90 m³. These results indicate the importance of optimizing the capacity and management of the Settling Pond to overcome the risk of excess runoff.
IMPLEMENTATION OF WEST PAPUA REGIONAL REGULATION NO. 5 YEAR 2023 AND GOVERNOR'S REGULATION NO. 16 YEAR 2024: LITERATURE STUDY ON THE DYNAMICS OF PEOPLE'S MINING LAW: IMPLEMENTASI PERATURAN DAERAH PAPUA BARAT NO. 5 TAHUN 2023 DAN PERATURAN GUBERNUR NO. 16 TAHUN 2024: STUDI KEPUSTAKAAN TENTANG DINAMIKA HUKUM PERTAMBANGAN RAKYAT Karubaba, Andrew; Hutapea, Ricardo O.M.; Kabes, Rico H.
INTAN Jurnal Penelitian Tambang Vol. 8 No. 1 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i1.300

Abstract

This study examines the legal substance and regulatory system in West Papua Regional Regulation Number 5 of 2023 concerning Community Mining and West Papua Governor Regulation Number 16 of 2024 concerning Mineral and Coal Mining Management. The normative legal method uses literature studies to analyze the direction of the West Papua Provincial Government's policy in managing community mining under the Special Autonomy framework. The study results indicate inconsistencies between regional policies and national forestry regulations, especially regarding determining Community Mining Areas (WPR), most located in protected forest areas. In addition, there are no explicit provisions regarding the involvement of indigenous peoples as the main stakeholders in the licensing process. For this reason, it is necessary to take strategic steps to align policies between the central and regional governments with local conditions and to formally recognize the rights and roles of Indigenous peoples in governing community mining in West Papua.
A MINERALOGY AND CHLORITE CHEMISTRY CONSTRAINTS ON THE FORMATION CONDITION OF PROPYLITIC ALTERATION IN THE TUJUH BUKIT PORPHYRY DEPOSIT, EAST JAVA, INDONESIA Por, Vannak; Idrus, Arifudin; Setiawan, Nugroho Imam; Takahashi, Ryohei; Takahashi, Ran; Abrar, Miftahul
INTAN Jurnal Penelitian Tambang Vol. 8 No. 2 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i2.314

Abstract

Propylitic alteration develops chlorite, epidote, and calcite assemblages commonly found in porphyry copper–gold deposits. This study aims to understand the formation temperature, oxygen, and sulfur fugacity of chlorite, a characteristic central element of propylitic-related minerals such as epidote and calcite, using a combination of qualitative and quantitative experimental methods. The propylitic alteration forming condition was analyzed in detail using a superprobe (JXA-iSP100) and Electron Probe Micro Analysis (EPMA) at a voltage of 15.0 kV. The chlorite composition is relatively homogeneous, and displayed as Mg-rich chlorite (Type-I) within AlIV-Mg-Fe, ripidolite with respect to Si vs Fe/(Fe+Mg). The chlorite geothermometer indicates that the crystallizing temperature ranges from 288.30 to 332.82°C. The oxygen and sulfur fugacity log fO2 and log fS2 of chlorite are low ranges (– 70.4 to – 51.85) and (– 32.55 to – 20.65), respectively. The analyses identify the mineral as true epidote, with spatial variations indicating Fe occurs as Fe³⁺ and Mn as Mn²⁺. However, the examined proportion of moles of the significant elements (Mg, Ca, Fe, Mn) indicates that calcite is present in hydrothermal systems.
APPROACH FOR ESTIMATING COHESION AND ANGLE OF INTERNAL FRICTION USING UNIAXIAL COMPRESSIVE AND TENSILE STRENGTH VALUES OF ROCKS Melati, Sari; Hakim, Romla Noor; Santoso, Santoso; Arief, Muhammad Zaini
INTAN Jurnal Penelitian Tambang Vol. 8 No. 2 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i2.315

Abstract

Rock characteristics, such as failure criteria, play a critical role in the assessment of stability in rock engineering, alongside design factors. Stability in rock engineering is cohesion (c) and friction angle (j) are parameters of failure criteria obtained by performing direct shear test or triaxial test. However, the measurements require a certain number of intact rock samples.  On the restricted condition or preliminary study, an approach involves for predicting both parameters. Using data statistical analysis of Uniaxial Compressive Strength (sc) and Brazilian Tensile Strength (st) of limestone and gypsum, empirical equations to predict c dan j were resulted in this research. Cohesion is strongly determined by st with average constants in equations: c = 1.81st dan c = 1.84st, for limestone and gypsum. Cohesion of limestone depends on sc with average constant in equation: c = 0.22sc. Friction angle and rock strength ratio (sc/st) are related by exponential equations: c/st = 2.1624e0.0314j dan sc/st = 3.6936e0.0183j, for limestone and gypsum, respectively. This approach using constructed empirical equations provides the prediction of c and j that relevant with theoretical values, indicated by 2.8% and 8.22% relative deviations. These empirical equations are useful for predicting the values ​​of c and j.
STABILITY OF OPEN MINE SLOPE USING THE LIMIT EQUILIBRIUM METHOD AND RISK ANALYSIS TO SUPPORT MINING INFRASTRUCTURE PLANNING Irianto; Afasedanya, Mapuay Menasye Theo
INTAN Jurnal Penelitian Tambang Vol. 8 No. 2 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i2.316

Abstract

Slope stability is a critical aspect in open-pit mining operations, particularly in limestone (C Group Mining) quarries that are widely developed in the Polimak area, Jayapura City. This study aims to evaluate slope stability under various slope geometries and hydrogeological conditions, as well as to establish a relevant risk map to support the design of safe and sustainable slopes. The methodology involved field surveys to collect slope geometry data and soil-rock samples, followed by laboratory testing to determine key geotechnical parameters (cohesion, internal friction angle, unit weight, and UCS). Slope stability analysis was performed using the Limit Equilibrium approach with Slide2 software, considering different combinations of slope heights (10–20 m), angles (45°–65°), and drainage conditions (dry vs. saturated). The results indicate that increasing slope height and angle significantly reduces the Factor of Safety (FoS), while rising groundwater levels due to rainfall can further decrease FoS by up to 20%. For instance, a 20 m high slope at 65° under saturated conditions yielded an FoS of only 0.73, far below the minimum safety threshold (FoS ≥1.3). Based on the risk matrix, such conditions fall into the high to extreme risk categories. This study recommends implementing multi-bench slopes with a maximum angle of 45°, complemented by proper drainage systems to maintain stability. The findings are expected to serve as practical guidance for managing limestone quarry operations in Polimak to ensure safe and efficient mining activities.

Page 12 of 13 | Total Record : 124

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