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Alam Budiman Thamsi
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Journal of Geology and Exploration
Published by CV. Insight Publisher
ISSN : -     EISSN : 29633869     DOI : https://doi.org/10.58227/jge
Core Subject : Science, Engineering,
Earth & Planetary Sciences Engineering
Journal of Geology and Exploration opens a new era for the publication of geoscientific research articles in English, covering geology, geophysics, geochemistry, paleontology, structural geology, mineralogy, petrology, stratigraphy, sedimentology, environmental geology, economic geology, petroleum geology, hydrogeology, remote sensing and mining exploration.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Teknik Geologi dan Geologi Teknik
Articles 35 Documents
 1   2   3   4 
Geochemical Characterization of Silica Sand in the Sidenreng Rappang Area Based on X-Ray Diffraction Analysis and X-Ray Fluorescence Analysis Suriyanto Bakri; Muhammad Anas; Muhamad Hardin Wakila; Citra Aulian Chalik
Journal of Geology and Exploration Vol. 2 No. 1 (2023): Journal of Geology and Exploration, June 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i1.36

Abstract

Silica sand is one of the mineral materials whose presence in nature is very abundant and can be utilized in various applications, but this material is still mixed with other elements. In the chemical element on the periodic table silica is symbolized (Si). The purpose of this study was to determine the types of minerals present in silica sand and to determine the percentage of silica sand mineral content. The research location is in the area of ​​Sidenreng Rappang Regency, Sidrap is a district in South Sulawesi Province, Indonesia. This research method uses XRD and XRF analysis methods. From the results of research on minerals contained in silica sand, among others, Albite and pyroxene. With mineral content that predominates in silica sand, among others, the albite mineral from sample 1 is 23.2%, sample 2 is 32.2% and sample 3 is 13.5% while the Pyroxene mineral from sample 1 is 17.6%. , sample 2 of 13.5% and sample 3 of 17.0%.
Flood Management Strategy Based on Community Perception in Rajabasa Area, Bandar Lampung City Pranahayu Sekar Winahyu; Az Zahra Putri Sugiarto; Tiara Tabitha; Nandi Haerudin; Rahmi Mulyasari
Journal of Geology and Exploration Vol. 2 No. 1 (2023): Journal of Geology and Exploration, June 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i1.44

Abstract

A flood is an event that occurs when an excessive volume of water flow submerges land. Bandar Lampung is one area that has the potential for flooding. Floods that occur in the Rajabasa area are caused by disturbances to the balance of nature due to human activities. In this case, this study aims to determine the coping strategy before the flood occurred in the Rajabasa area, to find out the coping strategy when a flood occurs in the Rajabasa area and the last is to find out the disaster management strategy after the flood in the Rajabasa area. The research method used was literature review such as journals and articles about flooding as a source of research carried out by collecting data and information about flooding and survey activities by distributing questionnaires to the public using the Google form as well as short and focused interviews with flood-affected communities. The results of this study indicate that the flood management strategy in the Rajabasa area of Bandar Lampung City, based on the community's point of view, is in the medium category, that is, the community already understands the coping strategy before the flood occurs, during the flood and after the flood occurs.
Reclamation Plan on Stone Land of The Ex-Nickel Mining at PT Vale Indonesia Tbk Central Pinnacle Condemnation Muhammad Furqan Al Faruqi; Firman Nullah Yusuf; Habibie Anwar; Alam Budiman Thamsi
Journal of Geology and Exploration Vol. 2 No. 1 (2023): Journal of Geology and Exploration, June 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i1.46

Abstract

Environmental and occupational safety issues in the world's mining business have always been the most important issues. The main problems that arise in ex-mining areas include environmental changes which include chemical changes, physical changes and biological changes (Hoskin, 2002). Reclamation is an activity carried out throughout the stages of the mining business to organize, restore and improve the quality of the environment and ecosystem so that they can function again according to their designation (Ahmad, 2006). Primary data collection was obtained using a mobile phone as evidence of the implementation of research activities for research location data, reclamation locations were taken using GPS (global position system) and drones. Secondary data is given directly from supervisors in the company. Land arrangement is intended to obtain a surface finish that is stable and has a natural shape so that it is in harmony with the shape of the pristine landscape, supports the success of plant growth, facilitates access to further work throughout the area, and increases the aesthetic value of the land (Munir, 2017). All irregular heaps are tidied up and leveled, deposits that have the potential to form a collection of water are filled with the result of pushing material from the leveled heap. Ex-mining land with irregular and uneven terrain (holes, relatively steep slopes) must be laid out in such a way as to be stable with low landslide and erosion hazard potential (Noor Rizqoon, 2004). Piling of rocks using top soil as thick as 50 cm on rocky ground. Activities that are no less important are sowing topsoil, making contour drains and making planting holes, these activities are carried out by making arrangements for making drainage and pocket ponds have been completed. Planting holes with a spacing of 3.5 meters and 4 meters can be ascertained that in 1 hectare of reclamation land for Konde Central Pinnacle 714 planting holes can be made, so it can be concluded that the planting holes for Konde Central Pinnacle are good with spacings of 3.5m and 4m.
Alteration and Mineralization in the Coppo Village, Barru District, South Sulawesi Province Muhamad Hardin Wakila; Nurliah Jafar; Agung Fiqriansyah
Journal of Geology and Exploration Vol. 2 No. 1 (2023): Journal of Geology and Exploration, June 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i1.50

Abstract

Hydrothermal alteration can be used to interpret and identify undiscovered mineralization, and can lead to the discovery of such mineralization. In the research area, it was found that there were outcrops that were altered with the physical characteristics of weathered outcrops. The research location is in the Camba Formation of Volcano Rock Members, and there are indications of sulfide mineralization, megascopically this study took 3 (three) alteration samples, selected based on the differences in color and texture of the rocks found. Samples we reanalyzed to determine alteration mineral assemblages using petrographic and XRD analysis methods, then to determine the type of alteration in sulfide deposits in the study area using the classification by Corbett and Leach, 1996. The results of the petrographic analysis showed that sample 1 consisted of chlorite, epidote, quartz and mineral assemblages. opaque minerals, sample 2 consists of plagioclase minerals, kfeldspar, clay minerals and quartz, sample 3 consists of epidote minerals, calcite and opaque minerals. The results of the XRD analysis showed that sample 1 consisted of the minerals quartz, chlorite, epidote and pyrite, sample 2 consisted of the minerals kaolinite, illite and pyrite, sample 3 consisted of the minerals quartz, chlorite, dolomite, epidote and auricuprite. The results of the analysis of alteration minerals assemblages were classified using Corbett and Leach, 1996 and it was found that the types of alteration in the research area were propylitic and argillic alteration types.
Groundwater Quality Analysis In Sidomulyo Hamlet, Argomulyo Village, Kalaena District East Luwu County Andri Widianto; Jamal Rauf Husain; Firman Nullah Yusuf
Journal of Geology and Exploration Vol. 2 No. 1 (2023): Journal of Geology and Exploration, June 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i1.51

Abstract

The geographical condition of Kalaena District is one of the sub-districts in East Luwu Regency. Kalaena District is located at 2o 03' 00” – 2o 30' 31” South Latitude and 120 o 49’30” - 121 o 00’ 30” East Longitude with an area of 64.54 km2. Groundwater is part of the water that is below the surface of the ground, groundwater is a necessary need for the community, making the quality of groundwater very necessary to be maintained and maintained. The data collection stage is the activity of retrieving all the required field data. The data used in this study were obtained from the results of direct surveys in the field on several wells in Argomulyo village, taking water samples and then testing the pH value, color, taste, smell, turbidity, weather, well depth, water level, well diameter, citizen interview data and research documentation photos, then several samples were subjected to laboratory tests to find out the chemical content in the residents' wells. It is known that the results of the study show that the contents of TDS, DO, calcium, iron and chloride are still below the threshold, only turbidity has a value above the permitted threshold, the feasibility of shallow groundwater is based on Government Regulation of the Republic of Indonesia No.22 article 1 paragraph 37 of 2021 in the research area based on the results of chemical analysis and physical tests performed. fall into class 3 category.
The Effect of Slope Slope on the Distribution of Nickel Laterite at PT Sentratama Karya Cemerlang, South Konawe Regency, Southeast Sulawesi Province Bakri, Suriyanto; Hardianto; Bakri, Hasbi; Fadli Heriansyah, Andi
Journal of Geology and Exploration Vol. 2 No. 2 (2023): Journal of Geology and Exploration, December 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i2.108

Abstract

The Morphology That Develops In The Study Area Consists Of Undulating Hills. Based On The Results Of The Slope Analysis, The Research Area Is Divided Into Several Slope Classes, Namely Flat Slopes, Gentle Slopes, Sloping Slopes And Steep Slopes. The Process Of Forming Laterite Nickel Deposits Will Be Greatly Influenced By The Slope Conditions. In The Research Area, Slopes That Have A High Percent Slope, The Thickness Of The Deposits That Will Be Formed Will Be Thinner, Ranging From 6-12 Meters, On The Other Hand, Slopes That Have A Low Percent Slope, The Thickness Of The Deposits That Will Be Formed Will Be Thicker, Ranging From 18-30 Meters. Therefore, This Study Aims To Determine The Effect Of Slope On The Distribution Of Nickel Laterite, Namely To Determine The Slope Of The Slope On Nickel Laterite At Pt Sentratama Karya Cemerlang, Laeya District, South Konawe Regency, Southeast Sulawesi Province
Estimation of Laterite Nickel Resources Using Ordinary Krigging Method at PT Vale Indonesia Nuha District East Luwu South Sulawesi Province Rauf Husain, Jamal; Bakri, Hasbi; Adnan Firdaus
Journal of Geology and Exploration Vol. 2 No. 2 (2023): Journal of Geology and Exploration, December 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i2.113

Abstract

Resources have an economic value, form, quality, quantity rate, geological characteristics, and endurance to be economically extracted. Mineral resources are grouped according to their degree of geological certainty into the categories of assumed, indicated, and measured. The research aims to assess the potential resource potential of nickel laterite and the spread of the rate of mineralization of nickel in the research area using the geostatistical method of Ordinary Kriging. The research methodology is based on conducting statistical and geostatic analysis, starting with univariate statistical analysis, spatial statistics, bivariate statistics, and resource estimates. The results of the statistical calculation using the Ordinary Kriging for limonite and saprolite zones with an average gap of 25 meters and an average depth of 20 meters with their parallel directions to the west, north-northeast, south-east, southeast, and west-southwest obtained a total volume of 119,920,468 m3 with a tonnage of 201,798,081 tons and a mean rate of nickel laterite of 1.56% Ni. Based on the results of an evaluation, it can be concluded that the number of nickel laterite deposits with a cut-off grade of 1.4% is 89,804,733 tons and the average rate is 1.83% Ni.
Geometric Design Analysis of Pit X Mine Slope Koninis Area, Bunta District, Banggai Regency, Central Sulawesi Province Azikin, Busthan; Astaman, Hery; Langkoke, Rohaya
Journal of Geology and Exploration Vol. 2 No. 2 (2023): Journal of Geology and Exploration, December 2023
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i2.114

Abstract

Penelitian mengenai mengenai analisi geometri lereng tambang PIT X dilakukan IUP PT. X di Desa Koninis yang secara administrasi termasuk di Kecamatan Bunta, Kabupaten Bangggai, Provinsi Sulawesi Tengah, dengan mendesain geometri lereng secara statis dan dinamis berdasarkan Keputusan Menteri ESDM No. 1827 K/30/MEM Tahun 2018. Analisis dilakukan menggunakan metode Bishop Simplified menggunakan perangkat lunak Slide 6.0 dari Rockscience. Hasil dari analisis lereng statis lereng keseluruhan pada kondisi tanpa muka air tanah adalah 2.00 dan pada lereng keseluruhan yang dipengaruhi oleh muka air tanah adalah 1.77, inter-ramp bagian limonit adalah 2.53 dan pada lereng inter-ramp bagian saprolite adalah 1.92, lereng tunggal bagian limonit adalah 5.35 dan pada lereng tunggal bagian saprolit adalah 4.10. Sedangkan analisis lereng dinamis lereng keseluruhan dengan koefisien gempa adalah 1.11, inter-ramp bagian limonit dengan koefisien gempa adalah 1.77 dan pada lereng inter-ramp bagian saprolit dengan koefisien gempa adalah 1.35, lereng tunggal bagian limonit dengan koefisien gempa adalah 2.75 dan pada lereng tunggal bagian saprolite dengan koefisien gempa adalah 4.679. Berdasarkan data bor, hasil analisis laboratorium sampel UDS, dan data kegempaan maka nilai FK pada zonasi limonit lebih besar dibandingkan dengan nilai FK pada zonasi saprolit. Desain ini untuk mensimulasikan pemodelan desain geometri lereng pada PIT X daerah penelitian.
Landslide Susceptibility Mapping using Geographic Information System (GIS) and Remote Sensing Data in North Luwu, South Sulawesi Province, Indonesia Chalik, Citra Aulian; Wakila, Muhamad Hardin; Jafar, Nurliah; Nurhawaisyah, Sitti Ratmi; Firdaus; Heriansyah, Andi Fahdli
Journal of Geology and Exploration Vol. 2 No. 2 (2023): Journal of Geology and Exploration, December 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i2.115

Abstract

Climate, topography, and rock conditions in Indonesia are relatively diverse, both physical and chemical, these conditions can cause adverse consequences such as floods, landslides, forest fires, and droughts. The Information from Volcanology and Geological Disaster Mitigation on Monday, July 13, 2020, flash floods and flow of debris due to landslides have occurred in Masamba and Baebunta, North Luwu, South Sulawesi Province. The purpose of this paper is to map the distribution of landslide susceptibility area using remote sensing and GIS data. The Method used to analyze the landslide susceptibility estimation model refers to the Indonesian Center for Agricultural Land Resources Research and Development (ICALRD). The parameters used in this model are rainfall, soil type, rock type, slope, land use, and land movement. The ICALRD Landslide Susceptibility Estimation Model in study area shows that there are three classes of landslide susceptibility, such as low, medium, and high susceptibilities. There are six subdistricts which are in medium to high landslide susceptibility, and the others are low to medium landslide susceptibility. The locations of landslides and flash floods that occurred in Masamba and Baebunta indicate areas with medium to high landslide susceptibility.
Quality Analysis of Limestone for the Raw Material of Cement Making Industry in Tangofa Village, Bungku Pesisir Sub-district, Morowali Regency Wakila, Muhamad Hardin; Bakri, Suriyanto; Syam, Nur Ilahi
Journal of Geology and Exploration Vol. 2 No. 2 (2023): Journal of Geology and Exploration, December 2023
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v2i2.121

Abstract

Morowali Regency, Central Sulawesi Province is one of the largest nickel laterite producing areas in the world, on the other hand this area also has abundant limestone potential, one of the areas that has limestone potential is the Tangofa Area, Morowali Regency. The absence of information related to the chemical composition of limestone in the area is the basis for this research. The purpose of this study was to determine the elemental and mineral content of limestone and to determine the quality of limestone as cement raw material based on CaO and MgO content. The research method was carried out with several stages, namely: literature study, field data collection, and laboratory analysis (Petrography, XRD, and XRF). From the results of petrographic analysis, it can be seen that the constituent minerals of limestone in the research area are calcite and quartz minerals, as well as the results of XRD analysis, which show the presence of calcite minerals that dominate the entire sample with a percentage reaching 100%. The results of analysis with the XRF method can be known oxide compounds constituent limestone in the study area are: CaO, MgO, K2O, PbO, Nb2O5, CuO, Sb2O3, RuO4, SnO2, and In2O3. Rh2O3, TiO2, PdO, and Ag2O. The CaO content of the three samples has a percentage of >48%, while the average MgO content does not exceed 6%, so it can be concluded that the limestone in the study area has good quality for cement raw materials.

Page 2 of 4 | Total Record : 35

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