cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
nendi rohaendi
Contact Email
nendi.rohaendi@esdm.go.id
Phone
+62817201536
Journal Mail Official
nendi.rohaendi@esdm.go.id
Editorial Address
PPSDM Geominerba Jl. Sudirman N0. 623
Location
Kota bandung,
Jawa barat
INDONESIA
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
 4   5   6   7   8 
APLIKASI METODE GEOSTATISTIK MULTIVARIAT UNTUK ESTIMASI ZONA BEDROCKENDAPAN NIKEL LATERIT Arif Budiyono
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 3 No 1 (2018): Jurnal Geominerba - 2018
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v3i1.94

Abstract

The problems in the exploration of lateritic nickel deposits arise when there was an unfinished drilling which had not penetrated the bedrock zone. This may lead to a non-optimal laterite nickel deposit resource model since the lateritic nickel mining should be carried out up to the bedrock zone. The multivariate geostatistics method was used to estimate the bedrock zone in the unfinished drilling location by utilizing the high saprolite zone elevation as the secondary data and bedrock zone elevation from the finished drilling as the primary data. Compared to the ordinary kriging, the ordinary cokriging technique approaches on multivariate geostatistics methods were proven to be able to improve the estimation results in which the statistical value of the estimated variance becomes smaller.
APLIKASI METODE RESISTIVITAS DC UNTUK PENDUGAAN BIDANG LONGSOR DAN BIDANG GELINCIR DI JALAN KERETA API KM 107 (1/5), CIGANEA, PURWAKARTA, JAWA BARAT Hilman Suwargana
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 3 No 1 (2018): Jurnal Geominerba - 2018
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v3i1.95

Abstract

Landslide which occurred at the railroad km 107 (1/5) Ciganea, Purwakarta, West Java, is tirggered by rainwater seeping into the porous rock such as breccias, sandstones, and soil, so as increasing the weight of the rock/soil. When the water is up to the rock that is impermeable, then the water will be moving over the rock, so that the rock serves as a sliding plane. If there is a rock that is above the sliding plane, then the rock will move in the sliding plane. One of the geophysical methods that can detect areas of landslide and sliding plane is Resistivity method. Resistivity method can detect areas of landslide and sliding plane based on value of rock resistivity. Data acquisition using method of electrical resistivity tomography. Based on resistivity section of line 1 which has been correlated with the drill data of BM-05, obtained litology at sliding plane is sandy clay with resistivity values of: (3.37 - 5.12) Ohm.m and claystone with resistivity values of < 3,36Ohm.m, whereas litology of landslide plane is sandstone with resistivity of: (7.81 - 18.00) Ohm.m and breccias with resistivity >18.1 Ohm.m.
KARAKTERISTIK SINGKAPAN BATUAN BEKU DAERAH CISAMPIH, DESA CITATAH, KECAMATAN CIPATAT, SEBAGAI LOKASI PRAKTIK KERJA LAPANGAN PELATIHAN BIDANG GEOLOGI Pudjo Asmoro; Aminul Wahib; Iwan Fahlevi Setiawan
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 3 No 1 (2018): Jurnal Geominerba - 2018
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v3i1.96

Abstract

Igneus rocks in the area Cisampih are only a small hillocks that covering about 1.5 hectares in the Citatah hills which is famous for limestones mining and marble. This mining also penetrated to some small hills of igneous rock,so its appearance as a dike through nearby rocks becomes clearer, as well as its burning effects. The altered part of limestone into marble in this area is interpreted as a result of this intrusion. The research was conducted by using geological mapping method, to know the lateral or vertical spread of existing rock outcrops, and to know the connection between the rocks. Petrographic analysis was conducted to determine the mineralogy composition of the rock, its function to name the rock type in more detail. The result of the research shows that the research area is composed by claystone which is crushed by limestone and the claystone are extruded by igneous rock but it doesn’t break through the limestone. This situation makes the area to be more attractive at least for field work practice trainees, geology students excursion, because it is supported by its relatively easy accessibility and close to Bandung city.
PEMANFAATAN TEKNIK ASCENDINGDAN DESCENDING SEBAGAI CARA EVAKUASI KEADAAN DARURAT DI BANGUNAN TINGGI LINGKUNGAN KESDM Yudiana Hadiyat; Leni Nurliana
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 3 No 1 (2018): Jurnal Geominerba - 2018
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v3i1.97

Abstract

Emergencies in buildings may be fires, earthquakes, falling at high. If such emergency conditions occur in non-tiered buildings then the evacuation process will be much easier than the evacuation process in high buildings. Ministry of Energy and Mineral Resources is one of the ministries that have high buildings in its work unit, which is definitely the potential for a emergencies will be very possible. When a emergencies occurs then an existing emergency response facilities should available and employees understand the evacuation procedure. There should be a way or method of escape from high buildings in addition other then use existing emergency response facilities that is by using rope. This study aims to determine whether ascending and descending techniques in the rock climbing can be applied as an alternative evacuation in case of emergency conditions, while the study method used is descriptive qualitative method. The research deliver that the existing facilities and infrastructure of emergency response condition in KESDM workforce have not been well managed and the employees are lack of knowledge of how to escape from emergencies. This can be seen from the absence of routine check cards of infrastructure, employees and security officers do not have the competence certificate of fire handling class B.
ANALISIS ASPEK GEOMORFOLOGI DESA MEKARJAYA, KECAMATAN CIEMAS, KABUPATEN SUKABUMI, JAWA BARAT Aliyuddin Jamil; Nana Sulaksana; Pradnya Paramarta Raditya Rendra
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 2 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v7i2.100

Abstract

The shape of the earth's surface that exists today is the result of geological processes that have taken place during the geological period which can show how the characteristics and distribution of the rocks. This research was conducted to find out how the geomorphological conditions were by analyzing the morphographic, morphometric, and morphogenetic aspects as a geomorphological shaper in an area. The research location is in Mekarjaya Village, Ciemas District, Sukabumi Regency, West Java which has geomorphological conditions that are influenced by the existence of old submarine volcano activity which then uplifted and exposed by intensive tectonic processes. The method used in this study combines qualitative and quantitative aspects supported by satellite imagery, data processing applications, and references from previous research. The results of this study show that there are 2 geomorphological units in the study area, namely the Slightly Steep Volcanic Hills Unit and Steep Volcanic Hills Unit with andesitic lava rock distribution and volcanic breccia. The river flow pattern that developed is a rectangular drainage pattern.
DAMPAK GEMPA BUMI DI SULAWESI BARAT DAN UPAYA MITIGASI Supartoyo; Hilman Suwargana; Arnan Karim
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 2 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v7i2.101

Abstract

On Friday of January 15, 2021 at 19:23 local time, the Mamuju area and its surroundings were hit by a destructive earthquake with a magnitude of 6.2 Mw (moment magnitude) which resulted disaster, which are : 105 people died (95 people in Mamuju Regency and 10 people in Majene Regency), 3,369 people were injured, about 3,750 buildings were damaged in Mamuju Regency and 4,172 buildings were damaged in Majene Regency. In addition, there are present of collateral hazard include ground crack, liquefaction and landslide. The maximum of earthquake intensity scale occurred in the Mamuju area of VII MMI (Modified Mercally Intensity). Seventeen months later, on Wednesday, June 8, 2022, at 12:32:36 local time, the Mamuju area and its surroundings were again hit by a destructive earthquake with a magnitude of 5.8 Mw. This earthquake also resulted disaster, which are : 17 people were injured, many buildings and 70 houses were damaged in Mamuju Regency. The earthquake intensity scale of V MMI. The two destructive earthquakes event give lessons learn of the importance for earthquake mitigation efforts. The results of field observations show that earthquake mitigation efforts have not been optimal in the West Sulawesi area. The fact that people still panicked during the earthquake and the amount of damage to buildings. Earthquake mitigation efforts through structural and non-structural mitigation must be increased in the West Sulawesi area to reduce the risk if an earthquake repeat in the future.
EVALUASI KONDISI RESERVOIR BERDASARKAN MONITORING GEOKIMIA FLUIDA PADA SUMUR PRODUKSI AGS-2 DAN AGS-8 LAPANGAN PANAS BUMI PATUHA, JAWA BARAT Ari Gunawan Sentosa; Agus Didit Haryanto; Dewi Gentana; Hendy Sujarmaitanto
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 2 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v7i2.102

Abstract

Patuha Geothermal Field is a vapor-dominated fluid system that mostly produces dry steam which associated with Quaternary Patuha Volcano. This field is located in Bandung Regency, West Java and has been exploited since 2014. This exploitation can cause changes in fluid characteristics of reservoir therefore the monitoring activity is carried out to identify these changes. This study uses fluid chemistry and tracer flow test data from two production wells, AGS-2 and AGS-8. The method used is a geochemical analysis of geothermal fluids. The results showed that the fluid from these wells are still influenced by magmatic volatiles which AGS-8 shows higher intensity than AGS-2. The concentration of non-condensable gases (NCG) has decreased since the start of exploitation, indicates that the boiling process is still ongoing in reservoir. AGS-2 well has meteoric water influx which causes the low value of dryness and enthalpy ​​also high potential of silica scaling compared to AGS-8.
POTENSI TANAH MENGEMBANG BERDASARKAN KADAR LEMPUNG DI KABUPATEN BEKASI, JAWA BARAT Dewi Ulfa Astriani; Dicky Muslim; Agung Mulyo; Tulus Pramudyo
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 2 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v7i2.103

Abstract

Bekasi Regency is composed of soft soil material that has swelling potential due to its expansive properties. This study aims to identify the swelling potential of soil using clay content parameters in six undisturbed samples. The samples were tested on basic physical properties to identify soil characteristics. The results showed that the study area is composed of high-plasticity silt soils (MH) based on the USCS. The percentage of clay is 5.5% to 20.1% and the percentage of silt is 33.2% to 85.7% indicating a more dominant silt content. Clay activity ranges from 2,418 to 4,973%, indicating the presence of montmorillonitic minerals. The swelling potential shows a value from 3.5817 to 33.525% including medium to very high potential. The difference in swelling potential in the soil samples can be caused by several factors such as the percentage of clay, moisture content, and plasticity index.
PENENTUAN JARAK BATU TERBANG MENGGUNAKAN METODE LINTASAN DI KUARI ANDESIT PT. NSM PURWAKARTA Awang Suwandhi; Wanda Adinugraha; Dwihandoyo Marmer; Maikel Kambuaya
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 2 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v7i2.105

Abstract

One of the problems in blasting is the presence of fly rocks which can have a serious impact on the surrounding environment, especially when hit by humans and infrastructure. To determine the horizontal distance of fly rocks is usually conducted by measuring the coordinates of the blasting point to the point where the rock fell to the ground. The video Tracker method approach is used to determine the farthest horizontal distance through its path. Based on the same blasting geometry, it was found that the equivalence of the horizontal distance of fly rocks using the video Tracker reached 97% of the coordinate measurement method. Meanwhile, the fly rocks distance resulting from the measurement method cannot be equated with the intrinsic or theoretical approach which is predictive in nature. The effect of total explosives used is quite significant on the occurrence of fly rocks. The more explosives used, the farther the fly rocks will be thrown. The incident of rocks being thrown away as a result of explosions at PT. NSM reached 95.60% due to the amount of explosives.
IDENTIFIKASI LOGAM BERAT DI LAHAN PASCA TAMBANG TIMAH DI KEPULAUAN BANGKA BELITUNG Asep Kurnia; Nendi Rohaendi
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 7 No 2 (2022): Jurnal Geominerba 2022
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v7i2.106

Abstract

The Bangka Belitung Islands Province (Babel) is one of the largest tin producing regions in Indonesia. The aim of the study was to identify the status and distribution of heavy metals (Pb, Cd, Cr, Zn, Mn) in post-mining areas in the Bangka Belitung Islands Province. This experiment was carried out through 3 stages of activity, namely: (1) Sampling of soil, water and plants in the field, (2) Analysis of heavy metal content in soil, water and plants as well as other soil chemical characteristics in the laboratory, and (3) Preparation of maps status and distribution of heavy metals in soil, water and plants in Kep Province. Bangka Belitung. Distribution of heavy metals Pb, Mn, Zn, and Cr in the soil is not normally distributed, while metal Cd is normally distributed, and the spatial distribution of metals Pb, Mn and Zn is distributed in groups, while metals Cd and Cr are evenly distributed. The frequency of detection of Cd exceeding the MAC value reached 96% spread over four districts). There is a very significant positive correlation (p<0.01) between Pb and Mn and Zn in the soil, and a significant negative correlation (p<0.05) between pH and Cr. The post-tin mining lands on Bangka Island covering an area of 56,421 ha generally have moderate to low levels of Pb, moderate to moderate Cd, moderate Cr, low to moderate Zn and low to moderate Mn. Heavy metals Pb, Cd, Mn, Zn and Cr were detected in all locations (n = 31), with minimum concentrations of 1.08 respectively; 0.79; 5.53; 42.01 and 0.65 mg/kg and the maximum is 76.05 respectively; 7.39; 560.66; 457.07; and 2.80 mg/kg. The detected frequency of Pb metal whose concentration exceeds the maximum allowable concentration (MAC) was 2 locations (8%), Cd metal 24 (96%), and Zn metal 8 locations (32%).

Page 6 of 9 | Total Record : 89

 4   5   6   7   8 

Filter by Year

2017 2024


Reset
Filter By Issues
All Issue Vol 9 No 1 (2024): Jurnal Geominerba - 2024 Vol 8 No 2 (2023): Jurnal Geominerba - 2023 Vol 8 No 1 (2023): Jurnal Geominerba - 2023 Vol 7 No 2 (2022): Jurnal Geominerba 2022 Vol 7 No 1 (2022): Jurnal Geominerba 2022 Vol 6 No 2 (2021): Jurnal Geominerba - 2021 Vol 6 No 1 (2021): Jurnal Geominerba - 2021 Vol 5 No 2 (2020): Jurnal Geominerba 2020 Vol 5 No 1 (2020): Jurnal Geominerba - 2020 Vol 4 No 2 (2019): Jurnal Geominerba 2019 Vol 4 No 1 (2019): Jurnal Geominerba 2019 Vol 3 No 2 (2018): Jurnal Geominerba - 2018 Vol 3 No 1 (2018): Jurnal Geominerba - 2018 Vol 1 No 1 (2017): Jurnal Geominerba - 2017 More Issue