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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 7 Documents
 1 
Search results for , issue "Vol 4, No 2 (2006): Bulletin of Scientific Contribution" : 7 Documents clear
EXTENSION TEKTONIK SELAT SUNDA -, Budi Mulyana
Bulletin of Scientific Contribution Vol 4, No 2 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (616.69 KB) | DOI: 10.24198/bsc.v4i2.8123

Abstract

Sumatra and Java Islands are representing a part of Sunda arc from plate of southern Eurasia. It started from north Andaman sea of Aceh-Sumatra-Jawa to southern Sumbawa island. Its network is including into island arc systems with mechanism of subduksi between Indo-Australian to Eurasia plates. Change of direction and speed of Indo-Australia plate subduction to Eurasia plate is started normally in part of Southern Java - Java Trench - becoming subduction oblique at Sumatra Trench. Change of the pattern cause to be formed its Fault Sumatra System (Fault of Semangko and Fault laugh) at Sumatra Island tinder, mark with lines Sunda strait volkanic area start from eldest of Sukadana, Krakatau Compleks to Panaitan young island. Change pattern direction of speed and movement of Indo-Australia plates to Eurasia plates is very interconnected sliver with effect of movement of India plate of collision the India continent. 
KARST CITEUREUP UNTUK SUPLEMEN DOKUMEN AMDAL DAN PENAMBANGAN BATUGAMPING -, Geni Dipatunggoro
Bulletin of Scientific Contribution Vol 4, No 2 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (846.971 KB) | DOI: 10.24198/bsc.v4i2.8119

Abstract

Karst can be defined as a peculiar and dry landscape developed as a result of dominantly dissolutional erosion of limestone by rain origin water which enter into the limestone and circulate in the underground drainage then resurgent to the surface as springs. The term karst is derived from the Yugoslavian language “kras” meaning “stone”, and has a root of Italian place Carso. This term is applied to a relative narrow strip of limestone extending along the northeastern coast of the Adriatic Sea.The composition of rocks in the investigated area consists of bioclastic Miocene aged limestone of the Kelapanunggal Formation overlying alternating claystone and sandstone belonging to the Cibulakan Formation of the same age.The Karst developed in investigation areas : 1. Dolines and 2. Kockpit Doline, 3. Swallow Holes, 4.Collapse Cave, 5. Singking Stream and 6. Uvala.
GEOLOGI BAWAH PERMUKAAN FORMASI CIKAPUNDUNG BERDASARKAN ANALISIS GEOLISTRIK DI DESA CIPICUNG, MANGGAHANG, KECAMATAN BALE ENDAH, KABUPATEN BANDUNG -, Undang Mardiana
Bulletin of Scientific Contribution Vol 4, No 2 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (938.356 KB) | DOI: 10.24198/bsc.v4i2.8124

Abstract

Sub-District Of Manggahang, District of Bale Endah have hilly and plain morphology with enough difference of height. Geologically is compiled by volcanic rock which consist of brecia, tuff, and lava which product of Old Volcanic. It is included in Cikapundung Formation which Middle Plistosen age (Silitonga, 1979) and lake sediment representing interval of fine clasticas clayey tuff, silty tuff, locality is found the existence of plant pickings, fine-coarse sandstone till with congelation rock fragment, this sediment is Quater age.Based on resistivity value, rock stratigraphy in study area have resisitivity which vary start from value set of Ωm (soil), tens of Ωm (brecia/tuff weathered), hundreds of Ωm (brecia-tuff), thousands of Ωm (lava 1), tens of thousand Ωm (lava 2), and hundreds of thousand Ωm (lava 3), third of him represent of andesitic lava (porfiry andesit at upper, and porfiry diorit at bottom).At high elevation covered by soil which thiner than foot-hill with spreading follow topography. Bellow of soil are interval of brekcia and tufa disseminating until assumption point GL - 02. and more thinning at foot area (to southern). Below interval of brecia and tuf, there are andesitic lava. At top hill, there is lava at 800 m elevation and in GL-02 having elevation 700 m. Hence if taken by elevation 700 m representing boundary of lower elevation, hence is andesitic lava from 100 m till 10 m.
ANALISIS KIMIA BATUAN BASEMEN GRANITOID DI SUB CEKUNGAN JAMBI, SUMATRA SELATAN BERDASARKAN DATA DARI SUMUR JSB-3, JSB-4 DAN JSB-6 -, Euis Tintin Yuningsih
Bulletin of Scientific Contribution: GEOLOGY Vol 4, No 2 (2006): 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.v4i2.8120

Abstract

Research area located at Jambi sub basin, the northern part of South Sumatra Basin formed during Tertiary. The propose of the research is to determine petrological characteristics of pre-Tertiary basement rock based on major oxides analysis from the granitoid basement rock in research area with AAS method (Atomic Absorption Spectrophotometry) so the petrogenesis could be determined including kinds and characteristics of parent magma. Chemical rock analysis confirm the lithology of granitoid basement in Jambi sub basin are intermediate – acid magmas, calc-alkaline, medium – high K, metalluminous, subduction-related (orogen) at active continental margin. Granitoid at JSB-4 and JSB-6 shows magnetite series and I type. This Mesozoic granitoid probably as extension from the Thailand and Burma granite province, that underline the fact that there has been a history of subduction-related magmatism along Southwestern edge of Sundaland since earliest Mesozoic times.
KLASIFIKASI GEOMORFOLOGI UNTUK PEMETAAN GEOLOGI YANG TELAH DIBAKUKAN -, Ike Bermana
Bulletin of Scientific Contribution Vol 4, No 2 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.722 KB) | DOI: 10.24198/bsc.v4i2.8125

Abstract

Some expert mention that surface of recent earth is reflection of geological process that goes on at past. Some state in Europe are connecting study of geomophology with geography. It is known as physical geography, but some of state in Europe and America are includes geomophology as geological science branch. While in Indonesia, more uppermost as physical geography, because indirect corellation to activity of development, specially development of agriculture and urban.
PEMANTAUAN ALIRAN SEDIMEN MELAYANG SUB-SUB DAS DI CITARUM HULU DALAM KAITANNYA DENGAN UMUR OPERASIONAL WADUK SAGULING -, Edi Tri Haryanto
Bulletin of Scientific Contribution Vol 4, No 2 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.609 KB) | DOI: 10.24198/bsc.v4i2.8121

Abstract

Monitoring suspended load transport flowing in to Saguling Reservoir has been conducted from August 2005 to January 2006 by means of measurements : water level, discharge, and suspensions of Upper Citarum River at Station Nanjung and its main tributaries at six other stations: Cikapundung, Cikeruh, Citarik, Cirasea, Cisangkuy, and Ciwidey River. Discharge and sediment suspension rating curve was made than compared with which measured and analyzed by the Institute of Ecology Padjadjaran University in 1982 and that also reported by Dewanti 1983. The results indicated that trend of sediment suspension transports was not significantly difference between that in 1982, although since 1992, total sediment depositions in the reservoir was slightly increase above deposition plan (4 million m3 per year). During the last seventy half years, the total deposition sediment was 67,832,078 m3, the life storage capacity was 167,689,000 m3. By using the assumptions of steady rate of deposition in the reservoir, the remaining operational age of Saguling reservoir was 25 years. The conclusions is that the life time of Saguling Reservoir for electric power generation still in plan. To halt worsening conditions of erosion rate in the Upper Citarum Watershed and sediment transport pattern in to the Saguling reservoir, integrated planning of watershed management system should be taken in to account..
EVALUASI LINGKUNGAN UNTUK FONDASI DI DAERAH LAPUKAN BREKSI VULKANIK, JATINANGOR, SUMEDANG, JAWA BARAT -, Zufialdi Zakaria
Bulletin of Scientific Contribution Vol 4, No 2 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.165 KB) | DOI: 10.24198/bsc.v4i2.8122

Abstract

Jatinangor consist of volcanic brecia and its weathered. This terrain as development area. This terrain is require some analysis to it land development, for example is foundation analysis. To anticipate of negative impact as effect of foundation failure, hence requireded by calculation of bearing capacity. Also required environmental analysis by Environmental Evaluation by identifying impact and also give environmental management instruction and also environmental monitoring that started with location of foundation at appropriate deepness. Monitoring herein can be done to condition of building (house, bridge, drainage, road, street, etc.).

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