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Jurnal Geominerba
Published by Pusat Pengembangan Sumber Daya Manusia Geologi, Mineral, dan Batubara
ISSN : 25801376     EISSN : 29632196     DOI : -
Core Subject : Science, Education, Engineering,
Earth & Planetary Sciences Education Engineering Other
The GEOMINERBA journal is published by the Center for Human Resources Development, Geology, Minerals and Coal which is published every June and December. Published publications related to the Development of Human Resources in the Field of Geology, Minerals and Coal.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 89 Documents
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GEMPA BUMI MERUSAK JAWA TIMUR SELATAN 10 APRIL 2021 Nia Kurnia Praja; Supartoyo; Amalfi Omang
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 6 No 2 (2021): Jurnal Geominerba - 2021
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1402.867 KB)

Abstract

On April 10th, 2021, at 14:00 local time, there was a destructive earthquake in the southern part of East Java area from the intraslab zone, resulting 9 people victim in Malang and Lumajang regency, 121 people injuries in Malang and Blitar regency, and thousands of buildings damage in the area of ​​South East Java. Also, this earthquake has triggered a small landslide and soil cracks type of lateral spreading. The maximum earthquake shaking occur in the southern part of Malang and Lumajang regency with earthquake intensity scale of MMI (Modified Mercally Intensity). Result of surface shaking modelling in the southern of East Java region ranged from 0.092 g (gravity) to 0.13 g.
PENGARUH PENGGUNAAN ALAT PERAGA DAN VIDEO PEMBELAJARAN TERHADAP PEMAHAMAN MATERI DIKLAT JURU LEDAK KELAS II TAHUN 2021 Yudiana Hadiyat; Leni Nurliana
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 6 No 2 (2021): Jurnal Geominerba - 2021
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.269 KB)

Abstract

The success of blasting activities can be seen from three aspects, namely the absence of accidents, achieving production targets and the absence of impact on the environment. The success of the blasting is influenced by the knowledge, skills and work attitude (competence) of the Blaster. One alternative to increase competence can be done through effective education and training. This study aims to determine the extent of the effectiveness of teaching aids and learning videos in increasing the understanding of training participants on the material presented. This research use a questionnare that is submitted to the participants of Class II Explosive Training Class IV 2021 at PPSDM Geominerba. The results of the questionnaire were processed using statistical methods through several analyzes, namely regression analysis and analysis of variance. From the results of data processing, it is found that there are three variables that have an influence on increasing the understanding of class II Explosive Training participants, namely the use of teaching aids and learning videos can increase the focus of training participants (X1), increase enthusiasm (X2) and reduce the boredom of training participants during training take place (X3). Variable X3 has the greatest influence among the other two variables on increasing participants' understanding. Based on the results of the analysis of variance, it can be seen that teaching aids and learning videos are proven to increase the effectiveness of Class II Explosive Training.
PEMANFAATAN KARBON AKTIF UNTUK MEREDUKSI BAHAYA MERKURI DAN SIANIDA PADA PERTAMBANGAN EMAS RAKYAT Imelda Hutabarat
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 1 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (784.21 KB) | DOI: 10.58522/ppsdm22.v7i1.52

Abstract

Small scale gold mining uses a lot of mercury and cyanide reagents in gold processing without sufficient knowledge and skills in its mineral processing and waste management. As a result, the processing of small scale gold mining becomes an environmental impact in the community because it is still carried out traditionally by ignoring environmental and health impacts, including the selection of inappropriate technology. Therefore, the community needs to be given education and appropriate technology related to process waste management, so that the process carried out is more effective, efficient and reduces the impact on the environment. This activity is a ccommunity service (Pengabdian kepada Masyarakat) activity, Bandung Polytechnic on Energy and Mining (PEP Bandung) with the theme of Utilization of Adsorbents of Zeolite and Activated Carbon to Reduce Industrial Waste (a case study of gold processing waste treatment in Sukabumi Regency) with the aim that the community around gold processing locations can consciously and independently manage gold processing waste so that: first, the impact on humans and the environment can be minimized and secondly, the use of process water can be reused effectively and efficiently. The method used is to test the absorption of metals dissolved in cyanide solution and see the percentage of dissolved metal absorption in activated carbon. The results obtained are that activated carbon is able to absorb metals especially mercury (Hg), gold (Au), copper (Cu), lead (Pb), zinc (Zn) and arsenic (As). As part of the social activity to the community, it has been prepared simple equipment to absorb metal dissolved in a cyanide solution that can be utilized in a waste pond of mining gold processing community in Simpenan District, Sukabumi Regency.
IDENTIFIKASI ZONA SESAR MENGGUNAKAN PENDEKATAN GEOMORFOLOGI TEKTONIK DAN PEMETAAN GEOLOGI DI DESA BAN, KABUPATEN KARANGASEM, BALI Ida Bagus Oka Agastya; Putu Diyan Diwyastra; Suryo Hespiantoro
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 1 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1435.898 KB) | DOI: 10.58522/ppsdm22.v7i1.53

Abstract

This study focus on the movement of the fault that caused an earthquake on October 16, 2021 at 03:18:23 WITA with an earthquake magnitude of 4.8 Mw. The epicenter of the earthquake on land was at coordinates 115.45° East Longitude and 8.32° South Latitude with a depth of 10 km. The purpose of this study was to identify the presence of an active fault zone and to determine the fault kinematics in Ban Karangasem. The method used is SRTM DEM Image Analysis, Tectonic Geomorphology Approach, and Geological Mapping. Secondary data collected by GIS (Geographical Information System), and primary data collected by field surveying to observe the existing deformation and topography to determine the geometry and kinematics of an active fault. Focal Mecanism Analysis also used to determine the kinematics active fault, data sources published by BMKG. The results showed there are geological structures in the Buyan Beratan and Batur Purba Formation (Qpvb) and the Agung Volcano Formation (Qhva) in the study area. The geological structure is in the form of shear dan gash fracture, right slip fault, left normal slip fault, and left slip fault. The fault is classified as an active fault and cuts young rock, with an estimated fault zone length of 18 km with 5 fault segments. The existence of this fault zone is influenced by subduction activities in the south of Bali Island between the Eurasian Continental Plate and the Indo-Australian Ocean Plate.
ZONASI PERGERAKAN TANAH DI DESA PANYUTRAN DAN SEKITARNYA, KECAMATAN PADAHERANG, KABUPATEN PANGANDARAN, PROVINSI JAWA BARAT Jhon Pengarapen Barus; Nana Sulaksana; Zufialdi Zakaria
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 1 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1013.482 KB) | DOI: 10.58522/ppsdm22.v7i1.54

Abstract

The research area located in Panyutran Village and its surroundings are areas whose surface is covered by Tertiary-aged rocks. In the study area, the constituent rock types are volcanic breccia, tuff and limestone. The method of studio analysis approach with remote sensing is the lineament analisys, lineament structure, slope, rock strength, mountain front sinuosity (Smf), and the ratio of the width of the valley floor to the height of the valley (Vf). The results of the analysis of these aspects indicate that the research area has an area with high or unstable ground movement susceptibility 2.3%, medium tectonic activity vulnerability 86.3% and low or stable ground movement vulnerability 11.4%. The results of the morphotectonic analysis show that the research area has medium tectonic activity.
PENGARUH PENERAPAN RUANG KOSONG PADA LUBANG LEDAK TERHADAP JARAK LEMPARAN BATU TERBANG < 150 M GUNA MEMPERKECIL JARAK EVAKUASI ALAT MEKANIS (STUDI KASUS PELEDAKAN PADA PT ALAMJAYA BARA PRATAMA) Wanda Adinugraha; Abdillah Fikri
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 1 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1248.624 KB) | DOI: 10.58522/ppsdm22.v7i1.55

Abstract

Based on the blasting analysis with air decking on the distance of flying rock throws, there are three parameters of blasting geometry that affect flying rock throws, namely the height of the water deck column, the height of the stemming column, and the initial burden distance. Based on the standard deviation value, the calculation of the predicted distance of flying rock throws uses the theory of Richard and Moore's cratering type, resulting in a prediction of the distance of flying rock throws that are close to the actual distance of Flying Rock throws. In order to distance the flying rock <150 m, the recommendation for blasting geometry at the initial burden minimum is 3.25 m and maximum is 4 m and the height of the stemming column is added 0.65 m from the actual stemming height and height the air deck column is reduced by 0.65 m from the actual air deck height.
ANALISA KUALITAS DAN SUMBERDAYA BATUBARA LAPANGAN X, PT. BUKIT ASAM (PERSERO) TBK., TANJUNG ENIM, SUMATERA SELATAN Dian Agus Widiarso; Faiq Nirmala
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 1 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (470.508 KB) | DOI: 10.58522/ppsdm22.v7i1.56

Abstract

Exploration activities are needed to find areas that have coal potential. The research area is an area that has not been mined yet. The purpose of this study is to determine the distribution of the coal in the area of research and analysis resource calculation, rank coal, coal and quality in the research area. The method used is to do the mapping to determine the distribution of coal. coal quality analysis is based on the proximate analysis and calculation of coal resources by using software Minescape 4118. seam A1 has measured resources amounted to 28.6 million tons, designated amounted to 27.8 million tons and 26.1 million tons of inferred. seam A2 has measured resources amounted to 58.2 million tons, designated amounted to 39.6 million tons and 33.5 million tons of inferred. seam B1 has measured resources amounted to 62.5 million tons, designated amounted to 36.2 million tons and 35.8 million tons of inferred. seam B2 has measured resources amounted to 7.89 million tons, designated amounted to 8.63million tons and 9.50 million tons of inferred. seam C has measured resources amounted to 67.8 million tons, designated amounted to 33.1 million tons, and amounted to 37.5 million tonnes inferred. total moisture values obtained tend to be low. Sulfur high value on the seam B1 and C are high influenced by the presence of sea water. The calorific value of the highest in the area of research is on the seam of seam C because C is the oldest seam.
KETIDAKPASTIAN DISTRIBUSI KUALITAS BATUBARA MENGGUNAKAN METODE INTERPOLASI PADA SITE BANKO TENGAH BLOK A, KABUPATEN MUARA ENIM, SUMATERA SELATAN Dian Agus Widiarso; Ulfatunnisa; Nurakhmi Qadaryati
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 1 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (905.522 KB) | DOI: 10.58522/ppsdm22.v7i1.57

Abstract

Block A of Banko Tengah is a concession exploration area. Along with the increasing demand for electrical energy & the condition of diverse coal qualit,y so a feasibility study is needed for optimizing exploration activity. The research location is Lawang Kidul District, Muara Enim Regency, South Sumatra. Uncertainty studies are related to distribution, seam continuity, and spatial variability pattern, accordingly needed seam reconstruction and coal quality assessment based on drilling data and result of geochemical test analysis. Interpolation methods are kriging, inverse distance to power, and natural neighbor. The quality analysis results show that mine brand of A1 is GAR 4.200 LS, A2 is GAR 4.400 LS, B1 is GAR 4.400 LS, B2 is GAR 4.200 LS, C1 is GAR 4.600 HS, and C2 is GAR 4.400 LS. The statistical assessment was carried out on B1 because of continuity seam, good mine brand, and the most data. The effectiveness of the interpolation method is natural neighbor because the borehole points are pretty close (there is dense data in East-West & rare data in Northeast – East) and the variability of the actual data is quite low.
PERBANDINGAN PENDEKATAN PEMBELAJARAN TCL DAN SCL TERHADAP PEMAHAMAN MATA DIKLAT PERATURAN PERUNDANGAN PERTAMBANGAN Mirna Mariana
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 5 No 1 (2020): Jurnal Geominerba - 2020
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4974.714 KB)

Abstract

The research was conducted to compare Teacher Center Learning (TCL) and Student Center Learning (SCL) approaches for better understanding in Mining Regulation especially Safety and Environment Regulation. The research method used is qualitative with descriptive analysis method, directional discussion, and question – answer the lesson plan in SCL approach are used Small Group Discussion, Contextual Instruction, and Problem Based Learning methods. The observation results from a comparison between the two learning approaches, the results show that the SCL approach provides an understanding result of 76% being able to understand and apply legislation, while the TCL approach is only 31%. The results of the questionnaire illustrate that the SCL approach gives more confidence to participate in implementing K3 and environmental legislation with a satisfaction index of 3.23 (almost achieving very good).
TIPE DAN ESTIMASI TEMPERATUR AIR BAWAH PERMUKAAN DAERAH PANAS BUMI GUNUNG PAPANDAYAN, GARUT, JAWA BARAT Fauzan Thaha Assegaf; Agus Didit Haryanto; Johanes Hutabarat; Dewi Gentana
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 5 No 1 (2020): Jurnal Geominerba - 2020
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7006.495 KB)

Abstract

The location of the Papandayan study area is administratively located in the Cisurupan District, Regency Garut, West Java Province, was chosen as a research site because estimated to be an area that has geothermal potential. The purpose of this study is to determine the direction of the alignment of the structure, type of fluid, origin, and approximate subsurface temperature of the geothermal fluid.The method used in this research is DEM-SRTM image to determine the pattern of ridge and valley alignment that reflects the geological structure in the study area. Data processing of geochemical laboratory analysis results of geothermal fluid and remote sensing are supported by observing the phenomenon of landscape, geological structure and physical properties of geothermal manifestations on the surface in the field. The results of the alignment analysis of the SRTM-DEM image processed in the rosset diagram shows the alignment pattern (geological structure) in the study area tend to have North East-South West. The results of water chemical data plotting in the Cl-SO4-HCO3, Cl-Li-B and Na-K-Mg ternary diagrams show the characteristics, types of water in the study area as chloride-sulfate and sulfate types. The fluids move to the surface as an upflow and have been mixed and diluted with shallow ground water or meteoric water, and significant reaction occurs between the fluid and the wall rock which it passes. The results of the calculation by using water geothermometer, it can be estimated that subsurface temperature in the study area between 170°C-237°C.

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