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Bulletin of Scientific Contribution : Geology
Published by Universitas Padjadjaran
ISSN : 16934873     EISSN : 2541514X     DOI : doi.org/10.24198/bsc%20geology.v18i1
Core Subject : Science, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Environmental Science
BSC Geology adalah jurnal yang dikelola oleh Fakultas Teknik Geologi Universitas Padjadjaran,terbit 3 kali dalam setahun (April, Agustus, dan Desember), yang menerbitkan karya tulis ilmiah dalam bidang kebumian terutama yang berkaitan dengan geologi seperti : Petrologi Paleontologi Geomorfologi Stratigrafi Geologi Dinamik Geologi Lingkungan dan Hidrogeologi Geologi Teknik Geokimia Geofisika Sedimentologi. Setiap artikel yang akan diterbitkan adalah bersifat tanpa biaya (no processing charges dan no submission charges). Dewan redaksi dan penerbit tidak pernah meminta bayaran untuk penerbitan pada jurnal ini. Tujuan dari jurnal ini adalah untuk memperkaya pengetahuan dan informasi tentang ilmu kebumian dan dapat dimanfaatkan untuk kemaslahatan bersama.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi
Articles 6 Documents
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Search results for , issue "Vol 3, No 2 (2005): Bulletin of Scientific Contribution" : 6 Documents clear
PENENTUAN TIPOLOGI AKIFER BERDASARKAN METODA GEOLISTRIK DAN HIDROKIMIA, KOTA TANGERANG Dwi Hadian, M. Sapari
Bulletin of Scientific Contribution Vol 3, No 2 (2005): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (65.762 KB) | DOI: 10.24198/bsc.v3i2.7453

Abstract

Electrical sounding expectation is used to estimate the early model from a groundwater system in thefield, which can be used as a comparison of field results. The comparison enhances to entrust the processof field activities and provide the opportunity to modify the programs in the field and to ensure that we haveenough information received efficiently - in a point of view of geological framework. A Usefulness of amapping hydrogeology is to show the under surface geometry (structure) and the hydraulic property fromearth materials which is used to investigate the hydrodynamic property appeared from the undergroundwater on natural shares ( Basin) or a part of its filler.The exploration using the method of the electrical sounding is conducted on land surface by injecting adirectional current (DC) with a low frequency into a deeper ground passing through two current electrodes.A different potential capacity is measured on the surface by two potential electrodes. The result of themeasurement capacity which is injected and the potential difference occurred in every different electrodedistance will give a value variation of a typical resistance. The value variation shows the existence of anunderground rock coat variation, while the method of hydrochemistry explains the genesis of thegroundwater based on a physical characteristic and chemistry substances on the field.Both methods are expected to reconstruct the aquifer condition and its system through surface andunderground surveys. The combination results of both surveys must be depicted in a form of ahydrogeology map (and its differential map), a block diagram depicting the aquifer, and aquifer system ina form of two dimensions. The other surface hydrogeology surveys use geological method. In contrast, theunderground hydrogeology survey use the electrical sounding method.
PENELITIAN STRUKTUR GEOLOGI DAN KAITANNYA TERHADAP KEMUNGKINAN ADANYA POTENSI EMAS PRIMER DAERAH GUNUNG ASTANA BOGOR, JAWA BARAT Haryanto, Iyan
Bulletin of Scientific Contribution: GEOLOGY Vol 3, No 2 (2005): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc geology.v3i2.7454

Abstract

The study area that is mainly hilly, contains volcanics matters such as breccias, tufaceous lapili, tufand lava. Several outcrops are followed by mineralization where quartz vein also occurred.Developed structures in the study area are quite complex, where NE – SW faults pairing with NW –SE faults. Mineralization zones and quartz vein are found on faults segments, these evidence shows thatthere are primary Au prospect at the subsurface in the study area.
TEKTONOSTRATIGRAFI CEKUNGAN OMBILIN SUMATERA BARAT Mulyana, Budi
Bulletin of Scientific Contribution Vol 3, No 2 (2005): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc.v3i2.7455

Abstract

Ombilin Basin is represent basin intramontane which limited by volcano-plutonic of Bukit Barisanand zona of Sumatera Fault system which representing a active strike-slip fault zone in west andmetasedimen rock in. Form of fisiography Ombilin Basin show a hilly at part of edge of east-west untilto north with precipitous morphology and level-off continent. Ombilin Basin basement is divided twopart, that is structured basement by Mergui terrain and Woyla terrain. Eldest Basement of Ombilin Basinis Formation of Limestone crystallin of Silungkang (age Perm) which laid bare at Tanah Hitam whichrepresent the part of Mergui terrains continent.Tectonism of Ombilin Basin is started at Paleogen related to peripatetic Southeast Asia tectonismwhich moving of India Block to northern. Early Paleogen, Ombilin Basin is formed with early motion oftranstensional effect of strike-slip fault motion of duplex regional, that is graben part of northeastOmbilin Basin. Motion of strike-slip fault are Sitangkai fault and Silungkang fault where this faultsmotion result attraction style in the form of normal fault by terrace to left north-south. This fault patterncontrol forming of first basin cause to be formed its faults which instructing northwest-southeast, northsouth,and northeast-soutwest of west-east. Tectonostratigraphy Ombilin Basin is represent full grabenwith set of deposits syn-rift tectonostratigraphy and of post-rift deposits continue at mechanism oftransgressive in the early Neogen.
FASIES BATUBARA FORMASI WARUKIN BERDASARKAN ANALISIS CORE DI DAERAH SUNGAI DIDI, KECAMATAN DUSUN TIMUR, KABUPATEN BARITO TIMUR KALIMANTAN TENGAH Yuniardi, Yuyun
Bulletin of Scientific Contribution Vol 3, No 2 (2005): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (472.644 KB) | DOI: 10.24198/bsc.v3i2.7451

Abstract

Research area layed on Sungai Didi, Dusun Timur District, Barito Timur Residence, KalimantanTengah Province. The border in geographically, 1150 11’ 1,22” – 1150 12’ 35” East Longitude and 20 2’27,93” – 20 3’ 28,74” South Latitude.Geology of research area consisted of two rock units, there were sandstone unit and claystone unit.Claystone unit consisted of claystone with alternated by coal, and then sandstone unit consisted ofsandstone which have coarse grain to fine grain. Both of those units were related with WarukinFormation, where formed at fluviatil environment with Middle Miosen of age.Research area facies would have four kinds and made into the group, there were MS (massivesandstone), FS (fining upward sandstone), CL (claystone) and Co (coal). Facies model which made haveconsisted of MS facies in lowers followed with FS facies, and then CL facies and Co in uppers.Keywords : Warukin Formation, Fluviatil, Facies
PERAN GEOLOGI TEKNIK DAN ANALISIS KEWILAYAHAN DALAM GEOLOGI MILITER DI INDONESIA Zakaria, Zufialdi
Bulletin of Scientific Contribution Vol 3, No 2 (2005): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.423 KB) | DOI: 10.24198/bsc.v3i2.7456

Abstract

Since ancient Chinesse era to World-War 2, knowledge of geoscience hold important role in themilitary world. Landscape analysis (potency and constraint) for military is needed to evaluate enemymovement and its war equipments, to determining access of location rute, to mapping hydrogeologysurface and underground for structural defence & military personnel and also for attack. Though Spot-5,Ikonos and Quickbird sattelite images’ exist, but map of military geology is necessary to remainingsurface material physical characteristic toward teritorial enemy and also to develop defence citadel.Map and scale of military geology based on engineering geology condition for need of military. Variationscale depend on needed, from big scale (most detailed) to small scale (regional).In Indonesia, Indonesian Association of Geologist (IAG) both Geological Research and DevelopmentCenter (GRDC) not had Unit of Military Geology yet. In America, Unit of Military Geology was formedsince 1942. This unit duty is complie terrain intelligence, how troops can be move in land; finding ofwater, fuel, mineral and construction material, solving construction problem and base landing plane. 
KARAKTERISTIK LAVA DAN KEMUNGKINAN PEMANFAATANNYA SEBAGAI BAHAN GALIAN KONSTRUKSI DAERAH MALIMPING KABUPATEN BANDUNG, JAWA BARAT Sukiyah, Emi
Bulletin of Scientific Contribution Vol 3, No 2 (2005): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.29 KB) | DOI: 10.24198/bsc.v3i2.7452

Abstract

This research background are potency and limitation aspects in construction material resourcesapplication in southern part of Bandung Regency. The problem of research is role of lava characteristicin application designe as construction material resources. This research use deduction method withprobabilityapproach. Result of research show lava at Malimping area and surrounding have characteristicare grey-black, fine to intermediate texture, basaltic. A part of lava has sheeting joint and anothermassive. Based on petrographic analysis, a part of lava has a little alteration. That condition showed bya part of pyroxene had altered to chlorite. Result of chemical and physical analysis of rock show lava atMalimping area and surrounding is basalt. Potency of lava at Malimping is significane as contructionmaterial. Based on morphometry calculation and lava outcrop spreading, lava potency estimated44.573.500 m3. Nevertheless, that all potency can’t used because it spread in upper area of Citarumriver. Based on lava characteristics, outcrop position, regulation of landuse and trend of communityneed so that basalt lava potency used as dimention stone. That using can up value of contructionmaterial so that income of community in that surrounding area can up too.

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