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All Journal Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan Geoscience Journal Jurnal Teknologi Mineral dan Batubara Journal of Geoscience, Engineering, Environment, and Technology JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) BULLETIN OF THE MARINE GEOLOGY Buletin Sumber Daya Geologi Jurnal Geominerba Jurnal Teknologi Mineral dan Batubara
Johanes Hutabarat
Fakultas Teknik Geologi Universitas Padjadjaran, Bandung.
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Other

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Journal : Buletin Sumber Daya Geologi

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POLA ALIRAN PANAS BERDASARKAN ANALISIS FLUIDA DAN MINERAL UBAHAN DI DAERAH PANAS BUMI SORIK MARAPI, KABUPATEN MANDAILING NATAL, PROVINSI SUMATRA UTARA: HEAT FLOW PATTERN BASED ON ANALYSIS OF GEOTHERMAL FLUID AND ALTERATION MINERAL IN SORIK MARAPI REGION, MANDAILING NATAL DISTRICT, NORTH SUMATRA PROVINCE Azizi, Hisyam Azhar; Agus Didit Haryanto; Johanes Hutabarat; Dicky Muslim; Dewi Gentana; Ryan Hidayat
Buletin Sumber Daya Geologi Vol. 15 No. 3 (2020): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v15i3.309

Abstract

Sorik Marapi geothermal area in Mandailing Natal Regency, North Sumatra Province has a high-temperature geothermal system that is interpreted from the chemical characteristics of hot springs. The presence of alteration minerals such as epidot in exploration well cutting samples strengthens the estimated reservoir temperature reaches 235⁰C. The presence of hot water are more acidic hot spring around fumaroles and the minerals obtained from the drill well reflect the upflow zone while the hot spring group of neutral chloride water in the north with lower elevation reflects the outflow zone of the geothermal system here. This is a characteristic of hot fluid flow that occurs in geothermal areas of volcanic systems with steep terrain as well as Sorik Marapi area.
ANALISIS PENGINDERAAN JAUH DAN PEMODELAN 3D FAULT FRACTURE DENSITY (FFD) DALAM PENENTUAN ZONA PERMEABILITAS PERMUKAAN DI WILAYAH PANAS BUMI GUNUNG TAMPOMAS, JAWA BARAT: REMOTE SENSING ANALYSIS AND 3D FAULT FRACTURE DENSITY (FFD) MODELING INTO DETERMINATION OF SURFACE PERMEABILITY ZONES IN MOUNT TAMPOMAS GEOTHERMAL AREA, WEST JAVA Adi, Abizar; Haryanto, Agus Didit; Hutabarat, Johanes; Gentana, Dewi
Buletin Sumber Daya Geologi Vol. 16 No. 2 (2021): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v16i2.325

Abstract

The area of Mount Tampomas which is located in Buahdua District, Conggeang District, and Tanjungkerta District, Sumedang Regency, West Java was chosen as the research area because it is predicted to have geothermal potential with the presence of geothermal manifestations such as hot springs. The presence of manifestations relates to permeable zones controlled by geological structures. The lineament of the ridge and valley was observed and analyzed using ASTER GDEM remote sensing imagery and Indonesia Earth Form map (RBI), scale 1:25.000. The purpose of the study is to find out the relationship between permeability and the presence of geothermal manifestations in the research area. Research method by conducting remote sensing and fault fracture Density (FFD) analysis using 3D micromine software modeling. Results of remote sensing analysis with irradiation angle of 0°, 45°, 90°, 135° and altitude 45° shows the main pattern of the ridge - valley lineament interpreted as a fault in the research area have a relatively northwest-southeast and northeast-southwest direction. Indications of geological structures in the field are shown by the morphology of valley-ridges, in some places has a steep slope that form the fault escarpment and triangular facet. The FFD analysis results in the research area have varying permeability classes shown by low FFD values (0.00–3.00 km-1), medium (3.00-6.00 km-1) and high (6.00–9.33 km-1). The geothermal manifestations appear in the permeability zone that have medium to high FFD values marked by orange and red colors. From 3D micromine software modeling of the permeability zone and plotting of hot springs on the surface, it is clear that the appearance of hot springs to the surface is facilitated by faults that develop in the research area.
ESTIMASI TEMPERATUR BAWAH PERMUKAAN BERDASARKAN KEHADIRAN MINERAL ALTERASI PADA SUMUR “X” LAPANGAN PANAS BUMI WAYANG WINDU, PANGALENGAN, KABUPATEN BANDUNG, PROVINSI JAWA BARAT Vina Oktaviany; Johanes Hutabarat; Agus Didit Haryanto
Buletin Sumber Daya Geologi Vol. 12 No. 2 (2017): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1677.132 KB) | DOI: 10.47599/bsdg.v12i2.39

Abstract

Temperatur merupakan aspek penting dalam sistem panas bumi untuk pengembangan panas bumi sebagai sumber energi. Penelitian ini dimaksudkan untuk mengetahui jenis litologi, mineral alterasi, tipe dan intensitas alterasi serta penyebarannya pada sumur X, dan bertujuan menentukan temperatur berdasarkan geotermometer mineral yang kemudian dibandingkan dengan data hasil pengukuran temperatur (T) sumur. Objek dalam penelitian ini berupa serbuk bor (cutting) dari sumur X yang dianalisis dengan metode petrologi, petrografi, dan XRD. Hasilnya menunjukkan, bahwa litologi sumur X terdiri atas andesit terubah, tuf litik terubah, dan tuf kristal terubah. Mineral alterasi yang berkembang didominasi oleh mineral alterasi dengan pH netral yang berupa kuarsa sekunder, kalsit, epidot, montmorilonit, illit, smektit, klorit, oksida besi, dan pirit, serta beberapa mineral ber-pH asam seperti kaolinit, kristobalit, anhidrit, dan haloysit. Berdasarkan asosiasi mineralnya, alterasi pada sumur X dibagi menjadi tiga tipe, yaitu alterasi argilik dengan perkiraan temperatur antara 150oC hingga 180oC, alterasi subpropilitik antara 150oC s.d. 220oC, dan alterasi propilitik antara 210oC s.d. 280oC. Secara umum, hasil geotermometer mineral ini menunjukkan data temperatur yang lebih tinggi dibandingkan data T berdasarkan pengukuran sumur.
DELINEASI POTENSI BENTONIT MENGGUNAKAN METODA GEOLISTRIK DI DESA SEKARWANGI, KECAMATAN CURUGBITUNG, KABUPATEN LEBAK, PROVINSI BANTEN: DELINEATION OF BENTONITE POTENTIAL USING GEOELECTRIC METHOD IN SEKARWANGI VILLAGE, CURUGBITUNG DISTRICT, LEBAK REGENCY, BANTEN Ade Ihsanudin; Mega Fatimah Rosana; Johanes Hutabarat
Buletin Sumber Daya Geologi Vol. 18 No. 1 (2023): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v18i1.378

Abstract

Bentonite is an abundant mineral resource in Indonesia, based on data from the Center for Coal and Geothermal Mineral Resources (PSDMBP) in 2021 the measured resource of bentonite is 3,299,072,992.75 tons and has not been utilized optimally. Sekarwangi Village has bentonite resources, based on that the purpose of this research was conducted to find out the potential and types of bentonite found in the Sekarwangi area so that it can be put to good use. Sekarwangi Village is located in Curugbitung District, Lebak Regency, Banten Province, Indonesia. This research is divided into two stages, namely field activities and laboratory activities. Field activities include geological observations and geoelectric measurements. Laboratory activities are testing the geochemical content of rocks in the form of XRF (X-ray Fluorescence) and XRD (X-Ray Diffraction)analysis. The result shows that the rocks are composed of volcanic deposits, one of which is tuff. Based on the results of chemical analysis, bentonite in the study area is classified in the Ca-Bentonite category. Potential bentonite layer can be found at the depth of 1.27 - 40.24m. Bentonite has thickness ranging from 9.6m to 34.61m. The resistivity value ranges from 0.09 - 9.69 ohm/m.
KARAKTERISASI MINERALISASI TEMBAGA-EMAS BERDASARKAN GEOKIMIA MULTIUNSUR DENGAN METODE K-MEANS DAN ANALISIS KOMPONEN UTAMA, TOGURACI, INDONESIA: CHARACTERIZATION OF COPPER-GOLD MINERALIZATION BASED ON MULTIELEMENT GEOCHEMISTRY WITH K-MEANS AND PRINCIPAL COMPONENT ANALYSIS METHODS, TOGURACI, INDONESIA irwanda, Dharma; Mega F Rosana; Johanes Hutabarat
Buletin Sumber Daya Geologi Vol 19 No 2 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i2.466

Abstract

Multielement geochemical data processing with K-means and principal component analysis was carried out in the Toguraci, part of the Gosowong gold mine contract of work in North Halmahera Regency, North Maluku Province. Previous research has suggested that there is overprinting low sulphidation epithermal Au-Ag mineralization and Cu-Au porphyry. This research focused on 2 selected drill holes with a total of 540 samples that were analyzed for Au and 46 other geochemical elements. The purpose of this research is to determine the characteristics of the copper-gold mineralization, and its host rock with multielement geochemical analysis, in order to provide a guide for exploration activities. Multielement geochemical data processing with K-means produced 3 lithogeochemical clusters based on their immobile element composition, namely basalt and diorite which are the host rocks, and quartz vein. Principal component analysis shows consistent results for the 3 clusters, where the combination of PC1 and PC2 which cumulatively represented 46,32% of the variance, indicates high and low loading scores describing the association of immobile elements that separates basalt, diorite and quartz vein. Data simplification with 7 principal components (P1-PC7) representing 73,62% of the variance has produced 6 geological domains which have their respective geochemical characteristics, namely Quartz vein, Basalt-1, Basalt-2, Diorite-1, Diorite-2, and Diorite-3. Copper mineralization is found in Basalt-1 and Diorite-1 related to porphyry type that has characteristics of Mo-Cu-Re-Ge-Au elemental association. While gold mineralization is found in the Quartz vein domain related to low sulphidation epithermal type which is characterized by Ag-Sb-Te-Au-Tl-Bi-As-Pb-Se-In elemental association.
KARAKTERISASI MINERALISASI TEMBAGA-EMAS BERDASARKAN GEOKIMIA MULTIUNSUR DENGAN METODE K-MEANS DAN ANALISIS KOMPONEN UTAMA, TOGURACI, INDONESIA: CHARACTERIZATION OF COPPER-GOLD MINERALIZATION BASED ON MULTIELEMENT GEOCHEMISTRY WITH K-MEANS AND PRINCIPAL COMPONENT ANALYSIS METHODS, TOGURACI, INDONESIA irwanda, Dharma; Mega F Rosana; Johanes Hutabarat
Buletin Sumber Daya Geologi Vol 19 No 2 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i2.466

Abstract

Multielement geochemical data processing with K-means and principal component analysis was carried out in the Toguraci, part of the Gosowong gold mine contract of work in North Halmahera Regency, North Maluku Province. Previous research has suggested that there is overprinting low sulphidation epithermal Au-Ag mineralization and Cu-Au porphyry. This research focused on 2 selected drill holes with a total of 540 samples that were analyzed for Au and 46 other geochemical elements. The purpose of this research is to determine the characteristics of the copper-gold mineralization, and its host rock with multielement geochemical analysis, in order to provide a guide for exploration activities. Multielement geochemical data processing with K-means produced 3 lithogeochemical clusters based on their immobile element composition, namely basalt and diorite which are the host rocks, and quartz vein. Principal component analysis shows consistent results for the 3 clusters, where the combination of PC1 and PC2 which cumulatively represented 46,32% of the variance, indicates high and low loading scores describing the association of immobile elements that separates basalt, diorite and quartz vein. Data simplification with 7 principal components (P1-PC7) representing 73,62% of the variance has produced 6 geological domains which have their respective geochemical characteristics, namely Quartz vein, Basalt-1, Basalt-2, Diorite-1, Diorite-2, and Diorite-3. Copper mineralization is found in Basalt-1 and Diorite-1 related to porphyry type that has characteristics of Mo-Cu-Re-Ge-Au elemental association. While gold mineralization is found in the Quartz vein domain related to low sulphidation epithermal type which is characterized by Ag-Sb-Te-Au-Tl-Bi-As-Pb-Se-In elemental association.
Co-Authors Ade Ihsanudin Adi, Abizar Adjat Sudradjat Agus Didit Haryanto Agus Didit Haryanto Agus Didit Haryanto Agus Didit Haryanto Agus Didit Haryanto -, Agus Didit Haryanto Agustina Djafar Azizi, Hisyam Azhar Azwar Satrya Muhammad Cipta Endyana Dewi Gentana Dewi Gentana Dewi Gentana Dicky Muslim Emi Sukiyah Fauzan Thaha Assegaf Fery Erawan Gentana, Dewi Hendarmawan Hendarmawan Ildrem Syafri Ildrem Syafri Irwanda, Dharma Irzon, Ronaldo Iwan Setiawan Iyan Haryanto Khilal Khoiri Polanunu L. Sarmili -, L. Sarmili Lili Sarmili M. Ridfan Trisnadiansyah Mega F Rosana Mega Fatimah Rosana Mulyono - Nana Sulaksana Priatna Priatna Priatna, Priatna Purnama Sendjaja Putu Ayu Andhira Ronaldo Irzon Ryan Hidayat Sambodo, Tri Hananto Sendjaja, Purnama Stefanus Suryo Cahyono Sulaksana, Nana Teuku Yan Waliana Muda Iskandarsyah Vina Oktaviany Wilda Aini Nurlathifah Yudhi Listiawan