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Sekretariat Redaksi Jurnal Geologi dan Sumberdaya Mineral Pusat Survei Geologi, Badan Geologi, Gedung A, Lantai 1 Jalan Diponegoro No. 57, Bandung, Indonesia
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Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Published by Pusat Survei Geologi
ISSN : 08539634     EISSN : 25494759     DOI : https://doi.org/10.33332
Core Subject : Science,
Chemistry Earth & Planetary Sciences Energy
The JGSM acts as a publication media of high quality scientific investigations resulted from various geological scientific issues. Published articles covers Geo-sciences, Geo-resources, Geo-hazards, and Geo-environments. Geo-sciences are basic earth sciences in geology, geophysics, and geochemistry. Geo-resources are applied earth sciences scoping in geological resources. Geo-hazards are applied earth sciences concerning in geological hazards. Geo-environments are applied earth sciences focusing in environmental geology.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi
Articles 482 Documents
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IDENTIFIKASI GUNUNG API PURBA DI DAERAH SAPAYA, SULAWESI SELATAN PADA DATA INDERAAN JAUH Sidarto Sidarto; Udi Hartono
Jurnal Geologi dan Sumberdaya Mineral Vol. 19 No. 6 (2009): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v19i6.219

Abstract

In Tertiary, the South Arm of Sulawesi Island is a volcanic arc represented by Camba Formation having a relatively wide distribution. Integration of landsat and IFSAR images is able to visualize volcanic morphological features, lithology and volcanic structures that are used to identify ancient volcanoes in Sapaya area and surroundings. The result of geological interpretation on the images indicated there were two ancient volcanoes in this area, involving Sapaya and Bantoloe Volcanoes. The Middle Miocene - Pliocene Sapaya Volcano shows eroded cone feature, consisting of breccia volcanic (proximal facies), tuff (medial facies), and conglomerate (distal facies) units, and the vokanic structures are caldera, and radier intrusion basalts; while the Pliocene Bantoloe Volcano is identified by an eroded cone morphology, consisting of volcanic breccia of Bentoloe (proximal facies), lava Bantoloe (central testes), and diorite showing a deep seated intrusion (central facies). The Sapaya Volcano might be controlled by Tithyan type subduction showing a collision between micro continental which is part of Australian Continent and Eurasian Continent Plates. Keywords: South Arm Sulawesi, morphology, lithology, volcanic structure, ancient volcanoes, landsat and IFSAR Images       
GEOLOGI DAN PALEONTOLOGI FORMASI BALANGBARU DAN FORMASI MARADA BERUMUR KAPUR, SULAWESI SELATAN Fauzie Hasibuan; Alex Limbong
Jurnal Geologi dan Sumberdaya Mineral Vol. 19 No. 6 (2009): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v19i6.220

Abstract

A geological and paleontological studies on the Balangbaru and Marada Formations has been carried out. Both formations show that their depositional environment was in basin with turbidity currents. Marada Formation can be correlated with Panggalungan Member of the distal part of the Balangbaru Formation. Paleontological study on the Balangbaru Formation has yielded some macrofossils such as echinoid, bivalve Inoceramus sp., ammonite Grossouvreites sp. Marada Formation contains trace fossil Spirorhaphe sp. and species of nannoplankton have been extracted from the shale e.g. Ceratolithoides aculeus, C. kamptneri, Lucianorhabdus cayeuxii, L. arcuatus, L. maleformis, Micula murus, M. concava Lithraphidites quadratus, and Prediscosphaera sp. Based on the presence of macrofossils, nannoplankton, and radiolarian fossils of previous workers it can be concluded that the deposition of the Balangbaru and Marada Formations was in Albian to Maastrichtian (Late Early Cretaceous to Late Cretaceous) time. Keywords: echinoid, bivalvia, ammonite, trace fossil, nannoplankton, radiolarian turbidite
PERUBAHAN LINGKUNGAN DAN KARAKTER SISTEM PENGENDAPAN PLISTOSEN AKHIR HOLOSEN DI DATARAN PANTAI PEKALONGAN, JAWA TENGAH Herman Moechtar; Herman mulyana; Suyatman Hidayat
Jurnal Geologi dan Sumberdaya Mineral Vol. 19 No. 6 (2009): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v19i6.221

Abstract

The study of the environmental changes and character of the depositonal systems during Late Plistocene to Holocene on the Pekalongan coastalplain was based on analyses of the sedimentology and stratigraphy of fourteen boreholes. The penentration of the bore head varied from 7.70 to 15.80 m. Six depositional environments which occurred above the Damar Formation (QTd) are: linier clastic deposits (offshore, nearshore, and beach), fluvial deposits (river channel and floodplain), and swamp deposits. These deposits are separated by three depositional intervals (IP I-III). Based on the correlation of lateral and vertical stratigraphic successions, the environmental changes and character of the depostional systems are controled by sea level changes during the Late Pleistocene which were related by glacial and inter-glacial periods. Probably, after deposition of IP I, a local tectonichsve controled deplifting of the are. Keywords: Sedimentology, Stratigraphy, late Pleistocene - Holocene
STRUKTUR GEOLOGI BAWAH PERMUKAAN LINTASAN PANGALENGAN-SUBANG, IMPLIKASINYA TERHADAP KESTABILAN LAHAN Subagio Subagio; Bambang Suci Widijono
Jurnal Geologi dan Sumberdaya Mineral Vol. 19 No. 6 (2009): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v19i6.222

Abstract

The high anomaly pattern of West Java extending from Banten Province to the boundary of West - Central Java area, changes to low anomaly pattern in Bandung to Pamanukan. This phenomenon formed anomaly alignment with high gradient in the boundary part of both anomaly patterns. The profile pattern of Bouguer anomaly along Pangalengan­Subang and Gudangkahuripan-Parongpong sections show more detailed illustration of the subsurface geology structures. Qualitative and quantitative gravity analyses that were supported by surface geological data, sediment thickness, and remote sensing data, estimate that the anomaly alignment reflects a fault that formed a big graben. The anomaly profiles also describe some fault forming some horsts and grebens. Based on erotion intensity esoect in the mountainous area, and geological structures, the land stability of this area is interpreted as very low. Keywords.' high, low, anomaly alignment, structure, Pangalengan-Subang Section, horst, graben, land stability
KARAKTERISTIK OIL SHALE DI KAWASAN BUKIT SUSAH, RIAU Muhammad Heri Hermiyanto; Hermes Panggabean
Jurnal Geologi dan Sumberdaya Mineral Vol. 18 No. 1 (2008): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v18i1.223

Abstract

Oil shale, as an alternative energy resource, is recognized in the Eocene - Oligocene Kelesa Formation, located in theBukit Susah area, within the Central Sumatera Basin, of the back-arc type. An almost complete rock sequence of the86.8 m thick part of oil shale-bearing formation, found in the Puti Kayu River, comprises an association of shale with carbonaceous siltstone, sandstone, conglomeratic sandstone, and conglomerate. The thickness of shale bed is approximately 27.90 meter. Oil shale in the study area is potential as an oil-gas prone source rock, within good to excellent category, containing Kerogen Types I and II.. The dominant maceral group is exinite, composed of alginite (0.4- 0.6 %), resinite (0.4 - 2.0 %), sporinite (0.4 - 0.8 %), suberinite (0.4 - 2 %), cutinite (0.6 - 1.4 %), and exsudatinite (0.2 - 0.6 %); whilst the minor one is vitrinite ranging from 0.6 - 7.6 %. The average value of vitrinite reflectance varies from 0.27 to 0.43 %. Thermal maturity level of the oil shale, in general, is situated  within  the immature category, although it tends to be close to the immature - mature boundary line, beyond oil birth line. Clay minerals consist of smectite-illite assosiation, with illite and kaolinite. The shale has undergone a diagenetic process within an early diagenetic level. A palynological study shows that the age of the oil shale in Bukit Susah is Middle to Late Eocene. Keywords: oil shale, alternative energy, Eocene-Oligocene , Bukit Susah, oil-gas prone
FASIES DAN PERUBAHAN LINGKUNGAN PENGENDAPAN KUARTER DI DAERAH LABUHAN (BELAWAN), SUMATERA UTARA Herman Mulyana; Herman Moechtar
Jurnal Geologi dan Sumberdaya Mineral Vol. 18 No. 1 (2008): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v18i1.224

Abstract

The Quaternary deposits in the Labuhan, Belawan, North Sumatera, have been studied. These deposits have been correlated, using sections on 1:100 scale.  From the correlation of thirteen boring logs, the Quaternary sediments can be divided into facies: (a) marine, (b) beach, (c) marsh, (d) floodbasin, and (e) fluvial channels. Furthermore, the Quaternary sediment consists of 4 (four) depositional cycles namely interval A, B, C, and D.The stratigraphic succession of Quaternary and basin fill in the studied area were influenced by global events. Changes in climatological conditions between sub-humid to optimum into subhumid to dry are the effect from Milankovitch cycles; and sea-level fluctuations from high sea-level into maximum to low sea-level were correlated to global changes of sea-level. Keywords: sedimentary environment, climate, sea-level, global
SEDIMENTASI FORMASI SEMILIR DI DESA SENDANG, WURYANTORO, WONOGIRI, JAWA TENGAH Surono Surono
Jurnal Geologi dan Sumberdaya Mineral Vol. 18 No. 1 (2008): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v18i1.225

Abstract

Semilir Formation crops out widely along the Southern Mountains, the southern part of Central Jawa. This formation plays an important role in both stratigraphy and magmatism of the area. The formation is conformably underlain by turbidite-dominated sediments of Kebo Butak Formation and the upper part is overlain by the volcanic breccia of Nglanggran Formation. On the basis of lithological variation, the Semilir Formation can be distinguished into four units: sandstone, lapilli tuff, pumice breccia and andesitic pumice breccia.  Calcareous clay within the sandstone unit contains nannofossils which indicate an Early Miocene age. On the other hand, fission track datings of zircon, which is contained in the pumice of the pumice breccia facies, have resulted in the ages of 17.0 + 0 Ma and 16.0 + 1.0 Ma or latest Early Miocene.The depositional environments of the formation indicate a shallowing upward sequence, and volcanism was very active during the deposition of the upper part of the formation. The pumice breccia and andesitic pumice breccia units were deposited in a relatively short time. Keywords: age, stratigraphy, lithologic unit, fission track
UMUR FORMASI NAMBO DI SULAWESI TENGAH DENGAN ACUAN KHUSUS FOSIL MOLUSKA Fauzi Hasibuan; A. Kusworo
Jurnal Geologi dan Sumberdaya Mineral Vol. 18 No. 1 (2008): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v18i1.226

Abstract

The Nambo Formation distributed in the eastern of Sulawesi is well exposed along the Nambo River, Luwuk, Central Sulawesi. In this locality it consists of calcareous grey shale, with some calcareous sandstone interbeds,  about 50 m thick. The molluscan fauna is composed among others of Retroceramus (R.) haasti, Malayomaorica malayomaorica, B. aucklandica similis, Belemnopsis moluccana, B. galoi, B. stolleyi and B. mangolensis. It is concluded that based on the molluscan faunal assemblage, the age of the formation is Tithonian. It is correlable with the upper part of the Buya Formation in the Sula Islands. Keywords : Nambo Formation, molluscs, Tithonian, Nambo River, Central Sulawesi, Buya Formation, Retroceramus, Malayomaorica,  Belemnopsis.
DINAMIKA GARIS PANTAI KABUPATEN INDRAMAYU, JAWA BARAT, BERDASARKAN PENAFSIRAN CITRA SATELIT Dida Kusnida; P. Astjario
Jurnal Geologi dan Sumberdaya Mineral Vol. 18 No. 1 (2008): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v18i1.227

Abstract

Marine and coastal dynamic maps of Indramayu extracted from satellite imageries indicate the quantification of changes; those are changes of coastline, extension and the potential areas of erosion and sedimentation. The biogeochemical and hydro-oceanographic interactive processes of the up and downstream areas produce the marine and coastal physiographic of Indramayu. Therefore, the problem solving of coastal abrasion and accretion in Indramayu have to be executed through inter-sector coordination. Keywords: abrasion, accretion, coastal, coastline, satellite imageries
Kondisi Geologi dan Pemodelan Kestabilan Lereng Jalur Transek Liwa-Ranau, Liwa, Lampung Barat Prahara Iqbal; Sonny Aribowo; Asep Mulyono; Arifan Jaya Syahbana
Jurnal Geologi dan Sumberdaya Mineral Vol. 18 No. 3 (2017): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v18i3.228

Abstract

Landslide investigations and slope stability modeling have been carried out on the Liwa-Ranau transect road, West Lampung, with the aim of finding the relationship between geological conditions and landslide events. The research methods that be used in this investigation are geological mapping, disturbed and undisturbed soil sampling, laboratory analysis, slope stability analysis, and structural geology analysis. The Liwa-Ranau transect road has a hills topography with a NE-SW, north-south, and NW-SE direction and relatively sharp curve lineament. Based on the field observations, there are four points of landslides which are distributed in the middle of the transect road. Result of field observation shows soil translational slides and debris flow slides which developed with a 12-15 m wide, 15-55 m height, and 37-75 o slope angle. The sliding soil and rock types consist of sandy tuff, clay soil, and claystone.Keywords: Liwa-Ranau transect road, West Lampung, landslide, slope stability modeling, clay soil, sandy tuff

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