Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Bulletin of Scientific Contribution : Geology

bsc
Website

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 9 Documents

Search results for , issue "Vol 5, No 3 (2007): Bulletin of Scientific Contribution" : 9 Documents clear

NIKEL LATERITIK DI DAERAH TANAH MERAH, TABLASUFA DAN ORMO, KABUPATEN JAYAPURA, PROPINSI PAPUA -, Geni Dipatunggoro
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Nickel occurs in bedrock of ultramafic spread surrounding Jayapura to the west along the northeren beach of Papua, Occurs in layers of soil called Limonit and Saprolit where both are weathered of ultramafic bedrocks includes Peridotit, Harsburgit, Serpentinit, Dunit and Lerzolit.The geology of Jayapura including distribution of ultramafic and metamorphic rocks of Pra-Tersier age was uplifted to the land since the tectonic of Early Miocene to the present was subjected to some active tectonic characterized by steep and sharp morphology.From the result of previous investigations indicates that nickel grade are excellent and being prospective for industrial word especially in China. The highest obtained nickel grade reached 6 %.Fild investigation show the occurrence of DMP (Associated Minerals) in nickel area e.g. Iron (Fe), Cobalt (Co) and Chrom (Cr).

MORFOMETRI DAERAH ALIRAN SUNGAI PADA BENTANGALAM VULKANIK KWARTER TERDEFORMASI -, Emi Sukiyah; -, Mulyono
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

The Quaternary volcanic terrain has unique characteristic. Those phenomena are reflected by basin morphometry. Some morphometry variables can used are basin dimention, azimuth of river segment, azimuth of terrain lineament, river length (Ls), drainage density (Dd), and bifurcation ratio (Rb).Upper Citarum River area is the research area, exactly on Cijoho Basin, Cihejo Basin, Cigalugah Basin, and Barugbug Basin. Base on literature study result and field survey, those four basins have difference geological setting. Probabilistic approach used for know difference and similarity of basins. Statistic tests used are distribution normality of data and average difference tests.Result of research show highest Dd value exist on Cijoho Basin (3.78), otherwise its lowest exist on Barugbug Basin (2.35). That’s phenomena reflect difference of its volcanic rock characteristic. Commonly Rb values < 3 show that deformed basins. Rb values increase to downstream of Cihejo Basin, meanwhile on the other basins they are decrease. The Rb values escalation to downstream indicate strongly deformation at downstream of Cihejo Basin. The rivers of Cijoho Basin direct the-90o until 179o controlled by active tectonic. Meanwhile, the rivers pattern of Basins of Cihejo, Barugbug, and Cigalugah are controlled by active tectonic.

INVENTARISASI BAHAN TAMBANG DI WILAYAH CIBADAK, CIEMAS DAN CISAAT, KABUPATEN SUKABUMI -, M. Sapari D. Hadian; -, Cipta Edyana
Bulletin of Scientific Contribution: GEOLOGY Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Nowaday natural resources have to be optimalized for humanitarian welfare, It needed manajemen of mining effort that have the same with characterization of each natural resourses, then it needed to take inventory of appearance of natural resources itself. All the information of mineral deposits be fitured in Map that covered in Identification and Mapping Potential Mineral Resourses Work.South Mountained Zone is a Table Land which developed a triangle with its top at southern Bandung have direction west to east, from The Pelabuhan Ratu Bay until Nusakambangan. Width of South Mountained Zone is about 50km. This zone is divided into 3 subzones, which is Jampang Subzone, Pangalengan Subzone, and Karangnunggal Subzone. The research area is included in Jampang subzone that contain Pra-tertiary Rock and Tertiary Sediment and appears in western of this zone. The Oldest rock found at South Mountained Block West Java consist igneous rock, ultrabase, and basalt (Van Bemmelen, 1949) and Skish which appears in Pra-tertiary age (Mark, 1957). Endang Toyib (1975) comment that complex melange deposits which is consist in Ciletuh area are the oldest rock (Mps, Mgg, Mgp). Those rocks formed by ofiolith and metamorphic rock and sedimentary rock consist black clay that scraped and mixed tectonically.

STUDI GEOKIMIA BATUAN VULKANIK PRIMER KOMPLEKS GUNUNG SINGA - GUNUNG HULU LISUNG, BOGOR - JAWA BARAT -, Johanes Hutabarat
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

The research about study on geochemistry volcanic rocks of Gunung Singa - Gunung Hulu Lisung, Nanggung, Bogor, West Java.Samples of the Gunung Singa-Gunung Hulu Lisung were extensively analyzed for major oxides and trace elements. Compositions of geochemical samples have been plotted and are used in drawing petrogenetic inferences. volcanic rocks Gunung Singa - Gunung Hulu Lisung belong to the medium calc-alkalic to high Calc-alkalic dacite suite, and have SiO2 contents in the range of 61,34-68,55%, high Al2O3 (14,99-19,63%) and low TiO2 content and relatively high K2O (1,90-2,55%)Oxide variation diagrams for the Gunung Singa-Gunung Hulu Lisung show linear trend with much scatter. This is partially due to the fact that SiO2 makes up an increasing percentage of silicic rocks allowing less scatter in the other oxides. However, we suggest that mich of the scatter is due to mixing of variably fractionated basaltic magma with silicic magma

STUDI PETROGRAFI BATUAN BEKU GUNUNG SINGA BOGOR - JAWA BARAT -, Johanes Hutabarat; -, Mulyono
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

This research about study on petrography of igneous rocks (dacitic) of Gunung Singa, Nanggung, Bogor, West Java.Results of petrography and chemical analysis of these igneous rocks indicates that volcanics rock (lava) as dacite.Petrographic description of dacite show by porphyritic textures with plagioclase and pyroxene minerals as phenocryst. Mineralogical composition of these rocks consist of plagioclase, pyroxen, K-Felsdpar, amfibole, and opaque minerals, and secondary minerals like chlorite, clay minerals, epidote and opaque minerals.

GEOLOGI DAN POTENSI BAHAN GALIAN BIJIH BESI DAERAH ACEH BARAT DAYA -, Iyan Haryanto
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

The geology of the Aceh Baratdaya has been controlled by convergence of the Eurasian and Indian lithospheric plates since the Mesozoic era. Various types of rock—including the metamorphic, meta-sedimentary, volcanic, and plutonic rocks—and the associated economic mineral deposits have been formed by diverse geologic proceses (i.e., sedimentation, lithification, metamorphosis, crystallization, and structural processes) associated with convergent plate interactions.The magnetic iron ores in the study area are interpreted as the crystallization product of hydrothermal solutions. Genetically, the iron ore in the study area is of lateritic type. Most of the ores in the study area are spread in northwest-southeast direction, in harmony with the general trend of faults and folds.

KETERDAPATAN BAHAN GALIAN GALENA DI DAERAH CIGEMBLONG, KABUPATEN LEBAK, PROPINSI BANTEN -, Mega Fatimah Rosana; -, Euis Tintin Yuningsih; -, Adi Hardiyono
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

The objective of the research is to identified and investigated the occurrence of lead, its distribution, size, formation, quantity and quality in the district of Cigemblong, regency of Lebak, province of Banten as a guide for advance investigation. Several samples collected and analyzed petrographically to identified rock, alteration and ore mineral variation as well as geochemistry analysis by XRF method.The stratigraphic units of the research area can be classified into three rock units, such as from oldest to youngest one are carbonaceous claystone, tuf, andesitic – dioritic intrusive, and volcanic breccia units. Three alteration types in the research are are prophylitic, argillic, and silicification alteration.Field investigation concluded that mineralization occurred as mineralization zone of quartz veins with N – S and NE – SW direction, partially as thin lensing in claystone unit. Otherwise the distribution are limited, and separated each other. So, it is difficult to trace the vein zone and lensing as same vein.The characteristic of the mineralization zone gangue minerals dominated composed of quartz, calcite and clay mineral, with ore minerals of pyrite

KARAKTERISTIK TANAH LEMPUNG LAPUKAN FORMASI BALIKPAPAN DI SAMBOJA, KALIMANTAN TIMUR Zakaria, Zufialdi -; Dipatunggoro, Geni -; Haryanto, Edi Tri -
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc.v5i3.8625

Balikpapan Formation (Upper Middle Miosen) consist of quarzite sandstone, silty claystone, and shale with marl as intercalation, limestone and coal. clay at Samboja as apart of Balikpapan Formation, consist of silt, clay and sand.Clay identification based on soil mechanic is clay with high plasticity (CH), illitic, very low permeability (K = 6,61E-08 to 1,48E-07 cm/sec), medium to medium-high activity (A= 0.55 to 0.91)Keywords: clay, soil mechanic

PERAN BATUAN DASAR TPA DALAM MEREDUKSI PENYEBARAN AIR LINDIAN SAMPAH (LEACHATE) SECARA ALAMIAH DI DAERAH BEKAS TPA PASIR IMPUN -, T. Yan W. M. Iskandarsyah
Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

This research was conducted at Pasir Impun Landfill Site which had an unperfect sanitary landfill system, so that the groundwater contamination occurred in the surroundings area. In order to minimize the spreading of leachate as natural, basement rock properties of landfill site could be an important factor. Generally, the basement rock of Pasir Impun Landfill Site had a good geological characteristic, eventhough there was a poor value of hydraulic conductivity between 10-4 - 10-5 cm/sec (>10-7 cm/sec; minimum value for a good landfill site). The good basement rock properties of Pasir Impun Landfill Site were (i) the basement rock had a deep groundwater table, (ii) a highly clay content in the basement rock which caused a rising retardation factor. Procentage of clay mineral (kaolinite) in the basement rock of this landfill site could be 87,22 %, with the value of retardation factor was 2,63. On the other side, the poor value of dispersion at the Pasir Impun Landfill Site showed that natural attenuation did not occure yet intensively. So, it could be predicted for 10 years later that the leachate plume will bigger than now, but still in 200 meter radius of leachate spreading.

Page 1 of 1 | Total Record : 9

Filter by Year

2007 2007

Filter By Issues

All Issue Vol 23, No 2 (2025): Bulletin of Scientific Contribution : GEOLOGY Vol 23, No 1 (2025): Bulletin of Scientific Contribution : GEOLOGY Vol 22, No 3 (2024): Bulletin of Scientific Contribution : GEOLOGY Vol 22, No 2 (2024): Bulletin of Scientific Contribution:GEOLOGY Vol 22, No 1 (2024): Bulletin of Scientific Contribution : GEOLOGY Vol 21, No 3 (2023): Bulletin of Scientific Contribution : GEOLOGY Vol 21, No 2 (2023): Bulletin of Scientific Contribution : GEOLOGY Vol 21, No 1 (2023): Bulletin of Scientific Contribution : GEOLOGY Vol 20, No 3 (2022): Bulletin of Scientific Contribution : GEOLOGY Vol 20, No 2 (2022): Bulletin of Scientific Contribution : GEOLOGY Vol 20, No 1 (2022): Bulletins of Scientific Contribution : Geology Vol 19, No 3 (2021): Bulletins of Scientific Contribution : Geology Vol 19, No 2 (2021): Bulletins of Scientific Contribution : Geology Vol 19, No 1 (2021): Bulletin of Scientific Contribution : GEOLOGY Vol 18, No 3 (2020): Bulletin of Scientific Contribution : GEOLOGY Vol 18, No 2 (2020): Bulletin of Scientific Contribution : GEOLOGY Vol 18, No 1 (2020): Bulletin of Scientific Contribution : GEOLOGY Vol 17, No 3 (2019): Bulletin of Scientific Contribution : GEOLOGY Vol 17, No 2 (2019): Bulletin of Scientific Contribution : GEOLOGY Vol 17, No 1 (2019): Bulletin of Scientific Contribution GEOLOGY Vol 16, No 3 (2018): Bulletin of Scientific Contribution GEOLOGY Vol 16, No 2 (2018): Bulletin of Scientific Contribution GEOLOGY Vol 16, No 1 (2018): Bulletin of Scientific Contribution GEOLOGY Vol 15, No 3 (2017): Bulletin of Scientific Contribution:GEOLOGY Vol 15, No 2 (2017): Bulletin of Scientific Contribution GEOLOGY Vol 15, No 1 (2017): Bulletin of Scientific Contribution Vol 14, No 3 (2016): Bulletin of Scientific Contribution Vol 14, No 2 (2016): Bulletin of Scientific Contribution Vol 14, No 1 (2016): Bulletin of Scientific Contribution Vol 13, No 3 (2015): Bulletin of Scientific Contribution Vol 13, No 2 (2015): Bulletin of Scientific Contribution Vol 13, No 1 (2015): Bulletin of Scientific Contribution Vol 12, No 3 (2014): Bulletin of Scientific Contribution Vol 12, No 2 (2014): Bulletin of Scientific Contribution Vol 12, No 1 (2014): Bulletin of Scientific Contribution Vol 11, No 3 (2013): Bulletin of Scientific Contribution Vol 11, No 2 (2013): Bulletin of Scientific Contribution Vol 11, No 1 (2013): Bulletin of Scientific Contribution Vol 10, No 2 (2012): Bulletin of Scientific Contribution Vol 10, No 1 (2012): Bulletin of Scientific Contribution Vol 9, No 3 (2011): Bulletin of Scientific Contribution Vol 9, No 2 (2011): Bulletin of Scientific Contribution Vol 9, No 1 (2011): Bulletin of Scientific Contribution Vol 8, No 3 (2010): Bulletin of Scientific Contribution Vol 8, No 2 (2010): Bulletin of Scientific Contribution Vol 8, No 1 (2010): Bulletin of Scientific Contribution Vol 7, No 2 (2009): Bulletin of Scientific Contribution Vol 7, No 1 (2009): Bulletin of Scientific Contribution Vol 6, No 2 (2008): Bulletin of Scientific Contribution Vol 6, No 1 (2008): Bulletin of Scientific Contribution Vol 5, No 3 (2007): Bulletin of Scientific Contribution Vol 5, No 2 (2007): Bulletin of Scientific Contribution Vol 5, No 1 (2007): Bulletin of Scientific Contribution Vol 4, No 2 (2006): Bulletin of Scientific Contribution Vol 4, No 1 (2006): Bulletin of Scientific Contribution Vol 3, No 2 (2005): Bulletin of Scientific Contribution More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Muhammad Kurniawan Alfadli

Contact Email
m.kurniawan@unpad.ac.id

Phone
+6285669298592

Journal Mail Official
bsc.ftg@unpad.ac.id

Editorial Address
-

Location
Kota bandung,

Jawa barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Muhammad Kurniawan Alfadli

Contact Email m.kurniawan@unpad.ac.id

Phone +6285669298592

Journal Mail Official bsc.ftg@unpad.ac.id

Editorial Address -

Location Kota bandung, Jawa barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Muhammad Kurniawan Alfadli

Contact Email
m.kurniawan@unpad.ac.id

Phone
+6285669298592

Journal Mail Official
bsc.ftg@unpad.ac.id

Editorial Address
-

Location
Kota bandung,

Jawa barat

INDONESIA