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PROMINE

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Published by Universitas Bangka Belitung

ISSN : 23547316 EISSN : 26207737 DOI : -

Core Subject : Science, Social, Engineering,

Earth & Planetary Sciences Engineering Environmental Science

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 120 Documents

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Studi Awal Geologi di Daerah Beruang Kanan Kabupaten Gunung Mas Propinsi Kalimantan Tengah Retno Anjarwati; Arifudin Idrus; Lucas Donny Setijadji
PROMINE Vol 6 No 1 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The regional tectonic conditions of the KSK Contract of Work are located in the mid-Tertiary magmatic arc (Carlile and Mitchell, 1994) which host a number of epithermal gold deposits (eg, Kelian, Indon, Muro) and significant prospects such as Muyup, Masupa Ria, Gunung Mas and Mirah. Copper-gold mineralization in the KSK Contract of Work is associated with a number of intrusions that have occupied the shallow-scale crust at the Mesozoic metamorphic intercellular junction to the south and continuously into the Lower Tertiary sediment toward the water. This intrusion is interpreted to be part of the Oligocene arc of Central Kalimantan (in Carlile and Mitchell 1994) Volcanic rocks and associated volcanoes are older than intrusions, possibly aged Cretaceous and exposed together with all three contacts (Carlile and Mitchell, 1994) some researchers contribute details about the geological and mineralogical background, and some papers for that are published for the Beruang Kanan region and beyond but no one can confirm the genesis type of the Beruang Kanan region The mineralization of the Beruang Kanan area is generally composed by high yields of epithermal sulphide mineralization. with Cu-Au mineralization This high epithermal sulphide deposition coats the upper part of the Cu-Au porphyry precipitate associated with mineralization processes that are generally controlled by the structure

Pola Deformasi (Deformation Pattern) Mineralisasi Emas Sulfida Rendah di Zona Neo-Tektonik Selat Sunda Dudi Nasrudin Usman; Nana Sulaksana; Febri Hirnawan; Iyan Haryanto
PROMINE Vol 6 No 1 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The Sunda Strait is one of the zones of the Eurasian plate encounters with fairly active Indian plates. This can be seen based on volcanic activity that occurred in the region of Mount Krakatau. But there are unique things that are important to learn is tectonic movement with geological forces that work to produce cracks in rocks, the formation of volcanoes and cracks that occur produce mineralized zones, especially in the Formation of Honje and Formation Cipacar and more widely known as Bayah Dome. The presence of mineralization of the Honje Formation and Cipacar Formation is particularly located in the District of Cimanggu, Mangku Alam Village, the existence of gold mining activities proves that the mineralization of the region has the potential of economy. The presence of mineralization will not be separated from the presence of rock fractures in the two formations that have different geological age of the Late Miocene and Plistocene. Both formations are hindered by the presence of unconformity fields. This study aims to prove the extent of tectonic activity occurring in the Honje Formation with the final Miocene age forwarded to the Cipacar Formation even though obstructed by the field of nonconformity with the results of field data processing based on the value of RMR and RQD value. Both parameters are also studied to determine the extent to which the RQD value determines the magnitude of the grade value of Gold (Au). The distribution of RMR value and rock RQD value is taken from 2 different rock units, ie, andesite rock units in Honje Formation and tuff rock units in Cipacar Formation, based on the data distribution around 125 RMR observation points and 117 RQD observation points in the field are processed by using method test the average difference of the two parameters from 2 different rock units. In addition, the RQD value was correlated to the high level of gold content using correlation regression test of 78 data content and RQD value. Results of processing and discussion of data indicate that between the value of RMR in andesit unit and tuff unit there is no difference in value means H0 accepted by tcount = 0.556 <ttable = 1.995, as well as the difference test average RQD value where the results show that there is no difference between the average value of RQD andesite rock units in Honje Formation and tuff rock units in Cipacar Formation with tcount = 1.714 <ttable = 1.995, based on the results of data processing it can be explained that the tectonic activity in Honje Formation with the final Miocene age is forwarded to Cipacar Formation even if obstructed the field of dissonance means that tectonic activity of the region is inferred as neotectonic activity of West Java. In addition, one more thing that can be concluded that the relationship of RQD with Gold content (Au) based on statistical test the greater the value of RQD then the value of gold content (Au) the greater the test results regression correlation value PValue (Significance) = 0.013 with the equation y = -0.715x + 75.882 value R2 42.39%. Because Significance value> 0.05 then H0 DENIED, so H1 accepted, where the higher the value of the Big Au content then the RQD Value the greater.

Kajian Ketahanan Batuan Clay Shale Formasi Jatiluhur di Sentul City Jawa Barat Revia Oktaviani; Paulus P Raharjo; Imam A Sadisun
PROMINE Vol 6 No 1 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The mechanical properties of Clay Shale are very unique. When it is dry, it shrinks and hardens, butwhen it absorbs water, it swells and to some extent loses its shear strength so that the drop-instrength can occur suddenly even with its own weight. Due to the nature of the swell-shrink that arestrongly influenced by climate and weather, clay shale durability may decrease over time when indirect contact with air and water. Research on clay shale was done in Sentul City, Bogor - West Java,Indonesia on Jatiluhur formation, using dynamic slaking (slake durability test) and slaking static test.Dynamic slacking test is done in three times i.e. after sampling, after 3 months and after 9 months.Slake durability test results from 3 different drilling points, shows that within 9 months, has not seenthe decreasing effect of durability. With a low Plasticity index, the durability research in Sentul City isin medium durability to medium-high durability classification.

Studi Unsur Tanah Jarang REE di Bagian Barat Bukit Sambung Giri Kecamatan Merawang Kabupaten Bangka Mardiah Mardiah; Irvani Irvani
PROMINE Vol 6 No 1 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

as long as years. The other mineral associated tin ore mineral very potensial mineral in Bangka Islandis rare earth element REE. They are the future prospect mineral resources, and how in the featuretime this potential must have a high economic value. REE potential not yet explored and exploited welluntil now days in Bangka Island, and was left abundant in ex-mining area. They carried out from thetin ore mining and become mine waste or tailing and then through the stream flows to be suspensionor bed load sediment. The aim of this study is to identify the present rare earth based on surfaceoutcrop samples as vein and rock and to understanding their spatial distribution in The west part ofSambung Giri Hill Merawang District Bangka Regency. Primary data collection of outcrop of rockand vein in Sambung Giri Hill. Geochemical sediments analysis just for identification insemiquantitative the presence of rare earth elements Ce, La, Nd, Sm and Y. Rare earth element ofcerium (Ce), Nd and Sm just ancent in some small sample, but for Lantanum (La) and yittrium (Y)almost presence at all shallow surface veint rock. The spatial distribution of rare earth Ce, La, Nd, Smand Y show heterogeneity in laterally.

Analisa Penurunan Produksi Lempung Terhadap Pengaruh Curah Hujan Dengan Metode Regresi Linier Lakon Utamakno; Agus Budianto; Enggar Priambodo
PROMINE Vol 6 No 2 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The mining industry in Indonesia plays an important role as the source of state income and the part of industrial progress of a nation. The majority of mining industry in Indonesia is an open pit., including clay mine that mined by United Tractors Semen Gresik Ltd in Temandang Village, Tuban. An open pit is a mining method that is directly exposed to the free air because it is above the earth’s surface. Therefore, weather factor greatly affects the productivity of the open pit apart from the factors of work effectiveness and material hardness. The result of the study showed that Temandang area has rainfall 135 mm/month. The average of the small production was 76.000 tons per month, so it becomes the researcher’s attention to analyze how great the rainfall influenced the production decrease. To achieve the production capacity target, an analysis by using linear regression equation, in which equation formula of the best statistical test result is as follow : Log P = 0,5025 x [ log {(Pr x JK)1,99 x (CH)-0,001}] + 0,0013. The calculation result by the mathematical model equation above showed that the effect of rainfall on production decrease was very small. Thus, the working hour and productivity greatly affected the production. So, if the production needs to be increased, then the working hour must be increased

Kajian Geoteknik Untuk Desain Pit Tambang Batugamping Di Daerah Karang Dawa, Kecamatan Margasari, Kabupaten Tegal, Jawa Tengah Mersi Abadi; Arifudin Idrus; I Gede Budi Irawan Budi Irawan
PROMINE Vol 6 No 2 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Location of research situated in the village Karangdawa, district Margasari, Tegal Regency, Central Java. The location of the research is the exploration Licences PT. Indocement Tunggal Prakarsa Tbk., with commodities limestone. This research is aimed at mengetahuikualitas, batugampingserta reserves and resources geotechnical model based on the geological model. Geotechnical models also determined based on the model of rockmass used slope stability analysis as a model to design the mine pit. The methods used in this research include field work in the form of observation of outcrops of rocks and develop the sample, as well as laboratory analysis in the form of analysis of petrographic analysis and XRF using the sample surface, analysis of physical and mechanical properties of the rock mass classification, as well as rocks based on Geological Strenght Index (GSI) uses a secondary data in the form of core data drilling. Analysis of the stability of slopes in this study using the method of limit equilibrium (limit equilibrium method). Interpretation and correlation of data indicating that the drilling core location stratigraphic research is composed by three units of rock: limestone, batulempung, as well as sandstones. XRF analysis results and modeling geology suggests the quality of limestone meet cement raw material standards as to the amount of 13,180,000 tons of limestone resources. The geometry of the slope resulting from the analysis of the stability of slopes of which are: single slope height of 10 meters, the angle of slope of a single 80-degree slope, the slope of the overall 48 degrees, 50 degrees, 60 degrees, 54 degrees, the wide level of 8.31 meters. Limestone reserves estimation is determined only on the basis of consideration of the mine pit design and ultimate pit limit which is limited by the territory of IUP. Backup tertambang (mineable reserve) limestone amounted to 7,477,000 tonnes.

Kajian Tingkat Pencemaran Minyak Bumi Akibat Pengeboran Ilegal Berdasarkan Pemetaan Sungai Sumur Dan Fisika-Kimia Air Studi Kasus : Kecamatan Keluang Kabupaten Musi Banyuasin Sumatera Selatan Harnani Harnani
PROMINE Vol 6 No 2 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Water pollution is a thing that can affect the environment, especially on health and hygiene environment around. Sub Keluang Regency Musi Betung South Sumatra known to have oil drilling wells of the Earth where illegal do not fit a common standardization is done, so worried about polluted areas the surroundings. This research aims to study and know the impact of environmental pollution due to the illegal drilling by local people, as well as provide information research results to the Government and the police to cooperate in enforcing laws that have set. To find out which level contamination using a research method that is mapping rivers and wells include deskipsi the physical characteristics, such as water color, flavor, odor, retrieval example of a sample for the analysis of physical-chemical content of the water, and the projection of the level of public health. The result of the physical identification of the water as much as 8 samples were declared contaminated. Sampling see the provisions on physical changes on either the river or the well, the results of the analysis of physical-chemical water, found many chemical compounds which exceed standard pH obtained ranged from 6.25- 8.16 and types of groundwater salt (31-464 mg/L TDS), increase the value of pH and TDS is assumed to be due to saltwater waste results from drilling for petroleum is illegal, and the presence of chemical compounds, either the main or excessive accessories in water then it can affect health, which that is evidenced by the results of the projection of the level of public health from the years 2016 to now that continues to decline. referring to the decision of the Minister of State for the environment number: 115 the year 2003 on guidelines for the determination of the Status of Water quality by the State Minister for the environment using STORET method with a score of 16 (polluted medium).

Pemanfaatan Sistem Informasi Geografis Untuk Zonasi Kawasan Pertambangan Kabupaten Ngawi Yazid Fanani; Avellyn Shinthya Sari
PROMINE Vol 6 No 2 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Ngawi regency has large potential of mining resources. However, there is no detailed data in mining arearegulation to optimalization of mining resources in Ngawi Regency. This research focus to identify miningresources in Ngawi Regency and making mining zonation used GIS aplication. Ngawi Regency Mining zonationmake with weighting and scoring in mining parameters than processing with overlay method. Based on thisresearch, Ngawi has 6 potential distribution mining resources, tehre is : Clay, Andesite, Limestone, Hard Soil,Sandstone, and Breccia. In Mining Parameters Ngawi Regency have 9 Parameters. Ngawi regency miningzonation can be divided into can be permitted to mined in 197 location, can be permitted to mined with certaincondition in 91 location , and can’t be permitted to mined in 254 location.

Pengembangan Wilayah untuk Pembangunan Daerah Pangalengan Kabupaten Bandung Berbasis pada Satuan Genetik Wilayah Geologi dan Kebencanaan Dudi Nasrudin Usman; Sri Widayati; Sriyanti Sriyanti
PROMINE Vol 5 No 2 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Unit of Area Genetics (SGW) as one of the methods in considering geological aspects for geologicarea-based development. The geological condition as part of the natural movement in a particularcondition makes it possible to predict its effect on the movement of an area in particular with regard tonatural disasters. Pangalengan who has a million beautiful natural charm, especially from the point ofpan-dang geology need it to be studied based on geological data. The charm is the presence of activevolcanoes in the region such as Mount Malabar, Mount Wayang, Mount Windu and others. In addition,the morphology of Pangalengan is relatively well represented in the highlands, hills and mountainareas as part of Java's tectonic activity. Another evidence of such activity is the existence of fault linesin the Pan-galengan mountains of Southeast-Northwest. Pangalengan who has a million beautifulnatural charm, especially from the point of pan-dang geology need it to be studied based on geologicaldata. The charm is the presence of active volcanoes in the region such as Mount Malabar, MountWayang, Mount Windu and others. In addition, the morphology of Pangalengan is relatively wellrepresented in the highlands, hills and mountain areas as part of Java's tectonic activity. Anotherevidence of such activity is the existence of fault lines in the Pan-galengan mountains of Southeast-Northwest.

Karakteristik Endapan Tras Nagreg untuk Menudukung Pemberdayaan Perekonomian Masyarakat Lokal, Desa Nagreg Kendan, Kecamatan Nagreg, Kabupaten Bandung Sri Widayati; Dudi nasrudin usman; Sriyanti Sriyanti; Linda Pulungan; Dono Guntoro
PROMINE Vol 5 No 2 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Characteristics of sediment Tras Nagreg as part of the volcanic process in the region provides anopportunity and potential to be utilized through mining activities. Mining activities, as a capitalintensive,labor-intensive and risk-filled industry, do not always have a negative impact on thesurrounding community, there is something to do with the economic aspects in which all types ofmineral deposits have economic value including tras. Nagreg Kendan Village, Nagreg Subdistrict aspart of Bandung Regency which has tras sediment potential, where in quality and quantity, trassediment in the area has big enough potency to be utilized especially to improve prosperity of localcommunity. Currently, the number of people with productive age is quite a lot, which becomes thecapital for the management of tras going forward, another thing to consider is the existence of thelocation not far from the access road that connects Bandung - Garut, Bandung - Cianjur and Bandung- Jakarta.

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