cover
Article Per Year (5 Year)
All
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
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 419 Documents
 26   27   28   29   30 
IDENTIFIKASI KEBENCANAAN GEOLOGI KABUPATEN CIANJUR, JAWA BARAT -, Zufialdi Zakaria
Bulletin of Scientific Contribution Vol 6, No 1 (2008): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (160.139 KB) | DOI: 10.24198/bsc.v6i1.8158

Abstract

Area of Cianjur Regency is represent the part of west Indonesian tectonic. Regional of west Indonesian tectonics is influenced by two plate, that is Indo-Australa and Eurasia, with plate boundary characteristic is Java Trench at south Java. Regional of Cianjur Regency have potency of geological hazard which need to attention from possibility of tsunami in south coast Java, until possibility of volcano eruption (Mt. Gede) in north region. Early warning system is required to various geology disaster referring to various project or activity which have developed or will expand.
PERAN ASPEK GEOMORFOLOGI DALAM MENENTUKAN KARAKTERISTIK ENDAPAN DEBRIS AVALENCHES GUNUNG PAPANDAYAN, GARUT, JAWA BARAT Nursalim, Asep; Sulaksana, Nana; Sukiyah, Emi
Bulletin of Scientific Contribution Vol 14, No 1 (2016): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1451.012 KB) | DOI: 10.24198/bsc.v14i1.9790

Abstract

Studies in this research are the characteristics of one of material deposits from the volcanoes eruption. Volcanic activity in Indonesia is a natural phenomenon that can occur at any time. Both material losses and loss of life will always happen at any moment in particular that deal directly with the volcano. The volcanic activity was resulted is deposition of debris avalanches. The study was conducted deposition of debris avalanches in complex of Papandayan volcanoes, Garut, West Java.In this study conducted by the interpretation of high resolution image data , and morphometry sub watershed for the morphologic aspects. The study was conducted to compare the deposited of debris avalanches from the eruption in 1772 and the eruption of 2002. Descriptive analysis of physical properties indicate a difference in both the materials. Deposition of debris avalanches in 1772 showed that sediment material is dominated by the matrix with widespread distribution . While the deposition of debris avalanches in 2002 are dominant fragment sizes and larger components and distribution concentrated in the upper reaches of the river that flows into the Cimanuk river. Both of debris avalanches are absent a scoria, pumice and large juveniles, which is one parameter of explosive. Analysis of  watershed morphometry showed different drainage densities in both materials, which is conducted to determine the resistance response of rocks whereas deposited debris avalanches. Keywords : Eruption, Debris avalanches, G. Papandayan. Studi dalam penelitian ini mengenai karakteristik salah satu endapan material hasil erupsi gunung api. Aktifitas gunung api di Indonesia merupakan salah satu fenomena alam yang dapat terjadi setiap saat. Kerugian baik materi maupun korban jiwa akan selalu terjadi setiap saat di khususnya yang berhadapan langsung dengan gunung api tersebut. Salah satu hasil dari aktifitas gunung api tersebut menghasilkan endapan debris avalanches. Penelitian endapan debris avalanches  ini dilakukan di komplek Gunung api Papandayan, Kabupaten Garut, Jawa Barat.Dalam penelitian ini dilakukan dengan cara interpretasi data citra resolusi tinggi, dan morfometri sub DAS untuk aspek morfologinya. Penelitian dilakukan untuk membandingkan endapan debris avalanches hasil erupsi tahun 1772 dan erupsi tahun 2002. Hasil analisis deskriptif sifat fisik menunjukkan adanya perbedaan kedua endapan tersebut. Endapan debris avalanches  tahun 1772 menunjukkan material endapan yang didominasi oleh matrik dengan penyebaran yang luas. Sedangkan endapan debris avalanches tahun 2002 dominan ukuran fragmen dan komponen yang besar dan penyebarannya terkonsentrasi di hulu sungai yang mengalir ke sungai Cimanuk. Kedua endapan tidak ditemukan  pumis dan skoria serta juvenil yang besar yang merupakan salah satu parameter eruspsi eksplosif. Dari analisis morfometri daerah aliran sungai memperlihatkan kerapatan pengaliran yang berbeda di kedua endapan, yang dilakukan untuk mengetahui respon resistensi batuan dimana endapan debris avalanches diendapkan. Kata kunci : Erupsi,  Debris avalanches, G. Papandayan.
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.).
INDIKASI ENDAPAN TSUNAMI BERDASARKAN SUBFOSIL DI RAWA DAERAH SIMEULUE, SUMATERA UTARA Lestari, Raihanna Ayu; Fauzielly, Lili; -, Winantris; -, Yudhicara
Bulletin of Scientific Contribution Vol 12, No 3 (2014): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (491.085 KB) | DOI: 10.24198/bsc.v12i3.8377

Abstract

Administratively, the study site is located in Sumatra Utara region, on swamp area at Simeuleu Island, which has coordinates point on 95° 43’ 15” BT and-2° 45’ 29” LS. Subfossil group used are foraminifera and ostracoda. Based on Simeuleu core analysis of lithological and biofacies, the study area are divided into 3(three) biofacies namely A,B and C. in Biofacies A, Heterolepa subhaidingeri is found as the predominate species that live in outer neritic environment. In Biofacies B, Elphidium depressulum is found as the predominate species that live in middle neritic environment. And in Biofacies C, Hanzawaia grossepuncata and Pararotalia calcariformata are found as the predominate species that live in middle neritic environment. Origin of depositional environment of tsunami deposits is middle neritic and outer neritic.
REKAM INTI SEDIMEN GUNA PREDIKSI PERUBAHAN LINGKUNGAN DI DELTA KALIGARANG, PROVINSI JAWA TENGAH Astriandhita, Karina Melias; Winantris, .; Muljana, Budi; Putra, Purna Sulastya; Praptisih, .
Bulletin of Scientific Contribution Vol 15, No 3 (2017): Bulletin of Scientific Contribution:GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (378.296 KB) | DOI: 10.24198/bsc.v15i3.15104

Abstract

ABSTRACTDetailed 20 meters core sampling of sediment was carried out from the recent deltaic Kaligarang, northern part Semarang, Central Java. The main objective of this research is to predict environment changes according to some parameters sedimentation process, for example grain size, organic and inorganic content and the occurrence of benthic foraminifera. The core was analyzed by destructive techniques. The sediment record indicated that the silt grain size dominance deposited in littoral to inner shelf with high organic content than inorganic. Keywords: Kaligarang Delta, grain size, organic content, foraminifera ABSTRAK20 meter rekaman vertikal inti sedimen resen dari Delta Kaligarang, Semarang Utara, Jawa Tengah. Objek penelitian ini untuk memprediksi perubahan lingkungan saat sedimen terendapkan berdasarkan dari parameter besar butir, material organik dan inorganik, dan foraminifera bentik. Inti batuan dianalisis dengan teknik dekstruktif. Hasil penelitian menunjukan bahwa karakter sedimen memiliki dominansi lanau yang terendapkan pada lingkungan litoral-paparan dalam disertai kandungan material organik lebih tinggi dibandingkan inorganik. Kata kunci: Delta Kaligarang, besar butir, material organik, foraminifera
PENARIKHAN RADIOKARBON KAITANNNYA DENGAN DINAMIKA DAUR PROSES PENGENDAPAN KUARTER FLUVIAL DAN DANAU TERHADAP PERUBAHAN IKLIM DAN TEKTONIK DI PAPARAN DANAU SINGKARAK, KAB. SOLOK, SUMATERA BARAT -, Herman Mulyana; -, Herman Moechtar
Bulletin of Scientific Contribution Vol 8, No 1 (2010): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1102.141 KB) | DOI: 10.24198/bsc.v8i1.8243

Abstract

The Quaternary deposits in the studied area comprises of river channel, floodplain, swampy which influence by rising and falling of lake level, lake, tidal-lake, and swamp deposits. These deposited separated by three depositional intervals (IP I-III). Vertically, the character of environment changing seems not gradually. These differences caused by dominant of tectonic effects. Therefore, climate was not important force in controlling the change of the environments. It’s mean, the sedimentary processes on the basin were under controlled by tectonic.
Peran Ilmu Dasar dalam Geoteknik untuk Menunjang Pembangunan Berkelanjutan yang Berwawasan Lingkungan Zakaria, Zufialdi; Jihadi, Luthfan Harisan
Bulletin of Scientific Contribution Vol 14, No 3 (2016): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1290.962 KB) | DOI: 10.24198/bsc.v14i3.10971

Abstract

Geoteknik adalah salah satu dari cabang dari ilmu geologi yang erat hubungannya dengan pembangunan berkelanjutan yang berwawasan lingkungan. Kajian-kajian geoteknik memerlukan ilmu dasar seperti matematika, statistika, fisika, biologi, dan kimia. Beberapa kajian geoteknik berhubungan dengan pembangunan infrastruktur seperti jalan tol, jalan kereta api, jembatan, menara, pondasi gedung, desain lereng rekayasa, dan lain-lain. Makalah ini memperlihatkan beberapa penelitian geoteknik yang memanfaatkan ilmu dasar, yaitu desain lereng stabil, desain pondasi, hubungan antar variabel tanah, maupun perbaikan tanah.  Penelitiannya a.l.: 1) Analisis kestabilan lereng, tujuan untuk mendapatkan lereng stabil, metode menggunakan model Starlet, hasil yang didapatkan adalah desain lereng stabil dan antisipasi keruntuhan lereng pada zona kerentanan gerakan tanah. 2) Analisis dayadukung tanah, tujuan untuk menentukan dayadukung yang aman bagi fondasi, metode yang digunakan adalah melalui cara Terzaghi, hasil yang didapatkan adalah nilai dayadukung tanah yang diijinkan untuk peletakan fondasi. 3) Soil improvement, tujuan untuk perkuatan fondasi,  metode melalui pencampuran tanah dasar dengan kapur (CaO), hasil yang didapatkan adalah meningkatnya kekuatan dayadukung tanah pada tanah ekspansif. Kesimpulan dari semua penelitan geoteknik tersebut adalah kajian geoteknik tidak bisa lepas dari ilmu dasar matematika dan ilmu pengetahuan alam. Kata Kunci: geoteknik, pembangunan berkelanjutan, lereng stabil, dayadukung tanah, soil improvement Geotechnics is one of branches of geological science   are closely related to environmentally sustainable development. Geotechnical studies require some basic sciences such as mathematics, statistics, physics, biology, and chemistry. Some geotechnical studies related to the development of infrastructure such as toll roads,   railways, bridges, towers, building foundation, slope design engineering, and others. This paper shows some geotechnical studies that utilize basic sciences, namely:  stable slope design, foundation design, the relationship between variables soil, and soil improvement. The study included: 1) Slope stability analysis, objective research is to get a stable slope, the method is using the Starlet model, the results obtained are stable slope design and anticipation of the slope landslide on vulnerability zone of mass movement, 2) Analysis of soil bearing capacity, in order to determine safety bearing capacity for the foundation, the method is using Terzaghi equtaion, the results obtained are allowable soil bearing capacity for safety foundation. 3) Soil improvement, the goal of strengthening the foundation, the basic method by mixing soil with lime (CaO), the results obtained are the increasing strength of the soil bearing capacity on expansive soil. The conclusion of all geotechnical research are geotechnical studies cannot be separated from the basic sciences of mathematics and natural science. Keywords: geotechnical, sustainable development, stable slope, soil bearing capacity, soil improvement
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2106.491 KB) | DOI: 10.24198/bsc.v5i3.8149

Abstract

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.
TINJAUAN ALIH-TEMPAT KELOMPOK OFIOLIT DI DAERAH CILETUH, JAWA BARAT Sendjaja, Yoga Andriana; Sunarie, Cecep Y.
Bulletin of Scientific Contribution Vol 13, No 3 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.816 KB) | DOI: 10.24198/bsc.v13i3.8410

Abstract

Ophiolite outcrops offers a unique opportunity to learn directly oceanic lithosphere, as ophiolite represents one of the few outcrops of rock that body can not be reached. Ophiolite is interpreted in the context of plate tectonics, as part of the oceanic lithosphere thrust into the continent during the first phase of orogenesa. Many geologists believe that the definition of ophiolite according to Penrose Field Conference in 1972, which is a typical sequence of rocks composed of, starting from the bottom: the complex ultramafic, gabbro complex, complex sheeted mafic dikes, complex mafic-volcanic and sedimentary pelagos. Ophiolite sequence may be incomplete, torn or termetamorfisme. Group ophiolite in area Ciletuh is an assemblage of mafic rocks (basalt, gabbro and ultramafic (peridotite, serpentinite), which is closely associated with the sedimentary-volcanic and metamorphic rocks. Generally ofiolitnya a sequence ophiolite very incomplete, and the mechanism of the transferor-tempatannya (emplacement ) can be equated with ophiolite "Cordilleran", which is rather a ophiolite (ocean floor, which did not contain fragments of the continent) above the subduction complex.
POTENSI DAN KUALITAS BATUBARA DAERAH LIPON-GENDANG KECAMATAN SUNGAI DURIAN, KABUPATEN KOTABARU, KALIMANTAN SELATAN -, Yuyun Yuniardi
Bulletin of Scientific Contribution Vol 4, No 1 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (622.959 KB) | DOI: 10.24198/bsc.v4i1.8113

Abstract

Location of research area was in Lipon-Gendang, Sungai Durian District, Kotabaru Residence, Kalimantan Selatan Province, there were into Tanjung Formation which had Coal Bearing Formation.Focused of subject this research was quality and potential of coal, and those have been coal distribution from several coal seam, resources prediction with used USGS methode, and analysis quality of coal from field research sample.There had been potential enough for coal from result of research. And that proved with have four seam were thickly between 0,2 – 3 m, and predicted of resources were 1.403.550 ton, and then quality of coal : calory average 5419,46 cal/gr and sulfur average 1,47 %.

Page 28 of 42 | Total Record : 419

 26   27   28   29   30 

Filter by Year

2005 2025


Reset
Filter By Issues
All Issue Vol 23, No 3 (2025): Bulletin of Scientific Contribution : GEOLOGY 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