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PROMINE
ISSN : 23547316     EISSN : 26207737     DOI : -
Jurnal ilmiah dengan nama Promine merupakan terbitan berkala ilmiah Jurusan Teknik Pertambangan Universitas Bangka Belitung yang terbit setiap bulan Juni dan Desember dalam setahun yang meliputi bidang Eksplorasi (Geologi dan Geofisika), Geoteknik/Geomekanika, Pengolahan Minerba, Reklamasi, dan Pasca Tambang.
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Articles 130 Documents
Profil Endapan Nikel Laterit di Kecamatan Tinanggea, Kabupaten Konawe Selatan, Provinsi Sulawesi Tenggara Hasria Hasria; Suryawan Asfar; Ervan Rizqullah Tawakkal
PROMINE Vol 9 No 1 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i1.2345

Abstract

The research area is located in Tinanggea District, South Konawe Regency, Southeast Sulawesi Province. This study aims to determine the profile of laterite nickel deposits in the study area. The research method used consists of literature study, field sampling and laboratory analysis and data interpretation. The results showed that the profiles of laterite nickel deposits in the study area consisted of top soil, limonite zone, saprolite zone and bedrock with different thicknesses. Top soil at Station 1 is very thin in the form of clay and plant remains, while at Station 2 it is a layer of sediment (limestone) with a thickness of 0-5 meters. Based on geochemical data, it shows that Ni, SiO and MgO elements /oxides show enrichment in the saprolite zone because have mobile so its dissolve easily during the laterization process and are transported the subsurface and experience leaching so that its are concentrated in the saprolite zone. The Fe element shows enrichment in the limonite zone because the Fe element has immobile so that it is not easily transported downward and is concentrated in the upper zone, namely the limonite zone.
Optimalisasi Fragmentasi dengan Metode KUZ-RAM pada Penambangan Batu Andesit Laura Puspita Sari; Faturrahmat Widodo
PROMINE Vol 9 No 1 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i1.2347

Abstract

The main activities at a mining site consist of stripping the overburden, unloading by blasting and surface mining, loading and transporting from the mining location to the crushing location. Blasting is an activity in mining that is carried out with the aim of dismantling the rock from its source rock into a predetermined size to facilitate further processes such as loading and crushing and a set production target. The less boulder, the better the resulting fragmentation because it will reduce the production costs for crushing the boulder to be smaller. This research focuses on blasting geometry planning as a parameter that is considered important in changing the size of the blasting rock fragmentation. The andesite blasting activity at the Batujajar 1 mine still found a fairly large percentage of rock blocks. Based on field observations, rock blocks resulting from blasting activities in the Batujajar 1 quarry are as follows: burden (B) 2.4 m, space (S) 3.1 m, stemming (T) 1.8 m, subdrilling (J ) 0 m, height (L) 6 m, into the blast hole (H) 6 m, column of explosives (Pc) 4.2 m, explosive material as much as 11.07 kg / hole. The drilling pattern applied is a staggered pattern and corner cut blasting pattern which is blasted in a row for each line with a delay time of 25 ms. The proposed geometry is calculated by calculating RL Ash 1963. With the theoretically proposed blasting geometry the results of rock chunks measuring> 80 cm according to RL Ash 1963 are 0.18%, then selected with the 1963 RL Ash theory, the results of rock fragmentation sizes are> 80 cm is 0.18%, this amount is better than the actual rock fragmentation which is still 9.11%, with the reduced number of boulders it is expected that production activities will run better.
Pengaruh Diskontinuitas Terhadap Kestabilan Lereng Batuan Terkekarkan Studi Kasus Kuari Andesit PT Lola Laut Timur Kabupaten Bogor Andesta Granitio Irwan; S. Koesnaryo; Barlian Dwinagara; Singgih Saptono
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2433

Abstract

Diskontinuitas pada suatu massa batuan memberikan pengaruh pada kestabilan suatu lereng batuan karena merupakan salah satu faktor pengendali dari keruntuhan lereng. Dalam penelitian ini dilakukan analisis terhadap peran diskontinuitas yaitu kekar dan intrusi terhadap kestabilan lereng serta pengaruh parameter persisten dan kekasaran kekar terhadap nilai faktor keamanan lereng serta kekuatan massa batuan. Analisis yang digunakan yaitu pengaruh intrusi, persisten serta nilai kekasaran kekar terhadap nilai faktor keamanan lereng. Pengolahan data kestabilan lereng menggunakan Software Rocscience RS2 dengan pemodelan Metode Elemen Hingga dengan pemodelan massa batuan yang digunakan dalam analisis yaitu Model Paralel Deterministik dan Model Veneziano.Hasil penelitian menunjukkan bahwa keberadaan intrusi pada lereng memberikan penurunan nilai faktor keamanan lereng hingga 0,95%. Pengaruh parameter persistensi terhadap faktor keamanan lereng diperoleh bahwa semakin meningkat nilai persistensi maka akan menurunkan nilai faktor keamanan lereng hingga 5,3 – 5,8% dan perubahan nilai JRC menurunkan nilai faktor keamanan hingga 3,2%. Pengaruh persistensi dan kekasaran kekar (JRC) terhadap kekuatan massa batuan diperoleh bahwa adanya peningkatan nilai persistensi akan menurunkan kekuatan massa batuan hingga 1,94% dan penurunan nilai kekasaran kekar akan menurunkan kekuatan massa batuan hingga 1,63%.
Peningkatan Nilai Tambah Mineral Kalsit Menjadi Barang Seni Lampu Hias Rully Nurhasan Ramadani; M. Imam Aga Dinata; Eka Adhitya; Himawan Nuryahya; Sri Widayati
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2519

Abstract

Abstract Increasing the added value of rock and minerals can provide benefits to the wider society. The policy conservation of minerals, which has a focus on optimizing benefits and minimizing negative impacts of mining activities. Framework of optimizing the benefits of minerals, there are efforts, maintenance, protection, mining and processing as well as increasing the added value og these minerals. Calcite mineral (CaCO3) a part of the carbonate mineral group as one of the main composition mineral of limestone. The utilization of this calcite mineral is reviewed based on the quality of the physical and chemical properties. In principle, this research utilize the physical properties of the mineral because the chemical quality is relative low. Trial and error method is used in this study to getting the right design of art. The processing is simple and doest not require high technology and certified skills, by utilizing the transparency, color, and gloss properties of the mineral calcite will become an art item that has added value when given lighting. Keywords: Calcite, Added Value, Art Items, Decorative Lighting
Analysis of The Distribution of TSS, TDS, pH And Temperature In The River Due to People's Alluvial Gold Mining With SGEMS In Desa Sungai Kapas, Merangin, Jambi RusnoviandI RusnoviandI; Refky Adi Nata; Puji Rahayu; Verra Syahmer
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2582

Abstract

Kegiatan penambangan emas secara tradisional dilakukan oleh masyarakat di Desa Sungai Kapas, Kabupaten Merangin, Jambi menyisakan lubang- lubang dan kolam akibat aktivitas penambangan emas. Aktivitas penambangan emas dilakukan disekitar aliran Sungai Blengo yang ada di Desa Sungai Kapas. Sisa air limbah penambangan dialirkan secara langsung ke sungai sehingga menyebabkan kekeruhan pada air Sungai Blengo. Penelitian ini dilakukan guna mengetahui kadar pencemaran yang terjadi di Sungai Blengo dengan parameter; TSS (total suspended solid), TDS (total dissolved solid), pH, dan Suhu. Metode yang digunakan untuk penelitian ini adalah metode eksperimen. Hasil pengujian menunjukan bahwa nilai TSS pada setiap sampel stasiun penelitian memiliki nilai melebihi ambang batas maksimal, nilai yang memenuhi nilai maksimal ambang batas adalah 200 mg/L pada stasiun 8 (delapan), pada stasiun lainnya nilai TSS melebihi 200 mg/L dengan nilai tertinggi sebesar 6.400 mg/L pada stasiun 7 (tujuh). Nilai pH pada staisun 3 (tiga) dan memiliki nilai 4,7 dengan demikian nilai tersebut tidak memenuhi standar sebesar 6-9. Dengan demikian dapat diketahui bahwa air Sungai Blengo tidak layak. Hal ini dikarenakan tidak memenuhinya syarat-syarat yang ada pada peraturan yang berlaku untuk penambangan serta pengolahan emas.
Kajian Teknis Kestabilan Lereng Pasca Tambang Berdasarkan Sifat Fisik dan Mekanik Tanah (Studi Kasus Kecamatan Mataraman Kabupaten Banjar Kalimantan Selatan) Rahma Norfaeda; Muhammad Rizhan; Kartini kartini
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2627

Abstract

Post-mining slopes have the potential for landslides caused by factors such as slope geometry, rock structure, physical and mechanical properties of rock and groundwater content. Post-mining slope monitoring must be carried out to avoid more environmental problems. This study aims to determine the stability of ex-mining slopes. The soil sample used form the Mataraman District, Banjar Regency. The analytical method of a technical study based on physical and mechanical properties of the soil with a mine slope design simulation using slide 6.0 software to determine the safety factor of ex-mining slopes from several variations of slope angles. The safety factor analysis was taken from the data of the smallest cohesion value and bulk weight to represent the strength of the slope material. Based on the analysis of the value of the physical and mechanical properties of the sample against the analysis of slope stability, it was found that the post-mining slope will be stable and safe if there are no additional factors that can reduce the stability of the slope. The mine slope still has a safety factor value of > 2 which means it is stable even though the slope angle has reached 70°.
Penyusunan Zonasi Kawasan Pertambangan Di Kabupaten Magetan Berdasarkan Aplikasi Sistem Informasi Geografis Dengan Metode Pertampalan Yazid Fanani; Fajar Rizki Widiatmoko; Salahudin Al Fakih; I Wayan Koko Suryawan; Mega Mutiara Sari
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2774

Abstract

Magetan has resources mineral potential of non-metallic minerals and rocks. The mineral variety is a mineral which relates to the people livelihood because it necessary for infrastructure development. There is no mining area zoning until now and it can be used to optimize the management and utilization of potential resources. In Magetan, mining area zoning was carried out by giving weights and assessments to the determining parameters which was conducted by patch method and it utilized Geographic Information System. So, the result of mining area zoning could be grouped into three zones. They were a zone could be granted a mining permit, a zone could be granted a conditional mining permit and a zone could not be granted a mining permit. Determining parameters for mining area zoning were land height, disaster vulnerability, groundwater, river borders, lakes and irrigation buildings, springs, forests and protected areas, agricultural land and cultivation areas, settlements, cultural heritage, tourism and district strategic areas, and land slope. The result of potential resources identification was carried out by analyzing Magetan geological map which was obtained potential resources, like andesite, pumice breccia, sandstone, siltstone and basalt. The zoning of Magetan mining area is a zone could bne granted a mining permit and the area was 9,914.507 Ha or about 14% in a percentage of the area, a zone could be granted a conditional mining permit covering an area of 20,748.29 Ha or about 30% and a zone unable to be granted a mining permit covering an area of 39,296.08 Ha or about 56% of the total area of Magetan.
Kajian Produktivitas Alat untuk Mengoptimalkan Hasil Produksi Overburden di PT. Karebet Mas Indonesia Site Kutai Energi Kalimantan Timur Fairus Atika Redanto Putri; Yudho Dwi Galih Cahyono; Serin Rabin
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2865

Abstract

Overburden and coal mining must go hand in hand and in line, because high overburden productivity will affect coal production results. This study aims to calculate, analyze productivity and determine recommendations for increasing production. This research uses a combined research method and a mathematical pattern. The company has a productivity target of 220.5 m3/hour, with the actual conditions obtained for digging and loading equipment that has reached the target of 279.9238 BCM/hour, but the transportation equipment has not reached the target of 80.9048 LCM/hour. There are various factors that have not achieved the production target, among others, low work efficiency, quite long transportation and return times during transportation equipment circulation times, as well as mismatched compatibility factors that cause long waiting times for transportation equipment. After optimization with the addition of 1 unit of excavator with the same type, optimization of the transportation equipment cycle time and optimization of the work efficiency of the transportation equipment, an increase in productivity was obtained in each conveyance, so that after optimizing the productivity target of transportation equipment was achieved by 222 ,4045 LCM/Hour.
Karakteristik Inklusi Fluida Endapan Tembaga-Emas Porfiri Brambang Di Pulau Lombok, Indonesia Aji Syailendra Ubaidillah
PROMINE Vol 10 No 1 (2022): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v10i1.3794

Abstract

The type of gold deposit in the research area in Brambang Village, Lombok Island, West Nusa Tenggara can be interpreted from several things, including fluid inclusions.This type of gold deposit is very important to know related to the potential gold deposits in this area. The lithology unit in the Brambang area can be divided into several lithological units considering their lithological dominance: lapilli tuff, diorite, tonalite and diatreme breccia. There are three types of veins observed where there are the fluid inclusions samples are taken, namely vein types A, B and C from the vein zone in tonalite rocks. The results of salinity measurements show two temperature groups that can be adjusted with vein type A-B for a temperature of ~550 oC and vein type C for a temperature of ~250 oC, these temperature magnitudes indicate the type of porphyry mineralization associated with base metals.
Investigasi Kondisi Airtanah Dengan Geolistrik: Studi Kasus Endapan Aluvial di Bengalon, Kutai Timur, Provinsi Kalimantan Timur Shalaho Dina Devy; Ibnu Hasyim
PROMINE Vol 10 No 1 (2022): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v10i1.2281

Abstract

Bengalon is located in East Kutai Regency, East Kalimantan Province. Bengalon is included in the Samarinda-Bontang groundwater basin. The development of agricultural and industrial areas, followed by an increase in residential areas, will cause an increase in the water demand. This study aims to determine the groundwater potential of alluvial areas using the resistivity geoelectric method. The resistivity survey resulted in subsurface lithology, shallow groundwater conditions in the form of depth, thickness, and location of the aquifer as well as the type of groundwater quality. There are 10 locations for geoelectric data collection using the 2D geoelectric method. The results showed that the majority of the aquifers were alluvial deposits consisting of sand and sandy clay. The resistance indicating groundwater is 1 - 4 Ω m, at a depth of 10 – 50 m with a thickness varying from 10 – 20 m which has been dominated by sand. The presence of sea water intrusion in aquifers causes the quality of groundwater to tend to be brackish because the research location is in a swamp area bordering the coast.

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