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INDONESIA
Journal of Geosciences and Applied Geology
Published by Universitas Padjadjaran
ISSN : 25793136     EISSN : 25793136     DOI : https://doi.org/10.24198/gsag.v7i3
Core Subject : Science, Engineering,
Earth & Planetary Sciences Engineering
Journal of Geological Sciences and Applied Geology (GSAG) is a National multidisiplinary Journal focus on Geological Sciences, Applied Geology, and Geological Engineering and Earth Science. Our Mission is to publish research related to (but not limited) Geology Petrology Paleontology Stratigraphy Sedimentology Remote Sensing Geomorphology GIS Engineering Geology Geotechnics Geochemistry Geophysics Geological Hazard and Disaster Geopark Hazard Mitigation Geography Earth Sciences
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi
Articles 117 Documents
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Geotourism Potential on Geosites in Natuna Geopark Prisca Nurul Pratiwi; Mega Fatimah Rosana; Kurnia Arfiansyah
Journal of Geological Sciences and Applied Geology Vol 5, No 2 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v5i2.34904

Abstract

Natuna is a district located in the Riau Islands Province. The Natuna area, consist of several islands. The main island namely Bunguran island, where the capital city of Natuna Regency is located. The islands have several rare geological heritages that has national and international significant value. The islands also have been designated as Natuna National Geopark since 2018. The purpose of this study is to analyze the potential of geotourism in several geological site of the Natuna Geopark. The research method used is collection and data analysis from secondary data that available, The geotourism components category are used classification by Newsome & Dowling (2010). Some geological diversities are used as geosites that has potential to be development as geotourism area. The results show that several geological sites in the Natuna Geopark can be developed and used as geotourism activities including: geosite for sightseeing; geo-sports; geo-study; geo-conservation and geo-education; and geo-festival. There are 11 geosites that have the potential to develop geotourism components, including Bukit Gundul, Gunung Ranai, Tanjung Senubing, Tanjung Datuk, Pantai dan Gua Kamak, Gugus Pulau Tiga, Pulau Senoa, Bukit Kapur, Pulau Akar, Pusat Informasi Geologi, and Batu Rusia. Some of the sites are already facilitated with infrastructure for tourism.Keywords: Geotourism, Geosite, Geological Heritage, Natuna Geopark.
Fulfillment Of Water Needs With Rainwater Harvesting Concept at Campus Universitas Padjadjaran, Jatinangor, West Java BOMBOM RACHMAT SUGANDA; Mochamad Nursiyam Barkah; Teuku Yan Waliyana Muda Iskandarsyah; Nanda Natasia; Mohamad Sapari Dwi Hadian
Journal of Geological Sciences and Applied Geology Vol 2, No 2 (2017): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i2.13449

Abstract

University of Padjadjaran (Unpad) as a means of education and research has need of water large quantity. Until now meeting the needs of water was carried out as a conventional namely the usage of groundwater. Through the passing of time, the constant use of groundwater and land use change in the catchment area may pose a risk of ground water crisis. Rainwater in the university environment has large potential with an average annual rainfall is 961.92 mm. The concept of rainwater harvesting by using potential water which be runoff will become the source of water to the fulfillment of a need. Unfortunately, rainwater that become runoff can contain bacteria and chemical contents that may be harmful to health. It is necessary for the screening process using filtration and membrane technology that can clean water and produce safe water to drink.
ANALYSIS OF GEOMORPHOLOGICAL ASPECTS OF SURADE SUB-DISTRICT, SUKABUMI DISTRICT, WEST JAVA Yusi Firmansyah; Nur Khoirullah; Moh Fahrul Yahya
Journal of Geological Sciences and Applied Geology Vol 7, No 1 (2023): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v7i1.49334

Abstract

The current form of the earth's surface romance is the result of geological processes that have taken place during the geological period which can show how the characteristics and distribution of the constituent rocks. This research was conducted to find out how the geomorphological conditions by analyzing the aspects of morphography, morphometry, and morphogenetics as a form of geomorphology in an area. The research location is in Mekarjaya Village, Ciemas Sub-district, Sukabumi Regency, West Java, which has geomorphological conditions influenced by the activity of an old submarine volcano which was then uplifted and experienced an intensive tectonic process. The method used in this study combines qualitative and quantitative aspects supported by satellite imagery, data processing applications, and references from previous research results. The results of this study show that there are 2 geomorphological units, namely the Slightly Steep Volcanic Hills Unit and the Steep Volcanic Hills Unit with the distribution of andesitic lava and volcanic breccia rocks. The drainage pattern that develops is rectangular.
THE SUSTAINABLE MANAGEMENT OF POST-MINING LANDUSE; AN AHP APPROACH A CASE STUDY: EX-SAND MINING IN INDRAMAYU REGENCY, WEST JAVA Ahmad Helman Hamdani; Johanes Hutabarat; Faisal Muhamadsyah
Journal of Geological Sciences and Applied Geology Vol 4, No 3 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i3.32224

Abstract

Recently, the sustainable management of post-mining land use has received great attention. The mining-closure, due to the mine has no longer economic value, or the mined material has run out; often leaving poor landscapes and degraded land.  The mining company have to rehabilitate the ex-mining land so that it can be returned to its original baseline stage or can be used for other more useful activities. The objective of research is to arrange the sustainable management plan of post-mining land use at ex sand-mining in Indramayu Regency, West Java. The Analytical Hierarchy Process (AHP) approach used to determine the priority of activities that will be carried out on the land. Several criteria and alternative were calculated by Saaty’s AHP pairwise comparison scale.  The research results reveal that in post mining land use management based on sustainable management, economic criteria must be considered first, followed by environmental, socio-culture and finally technical criteria. Fishery, cattle breeding and agriculture were found to be the optimal alternative for sand post‐mining land use.
Control of Geological Structure on the Springs Distribution and Their Physical Properties. Case Study: Southern Slope of Mt. Lampobattang, South Sulawesi GALIH AJI MAHENDRA; Teuku Yan Waliana Muda Iskandarsyah; Ismawan ismawan ismawan; Ciria Humanis Brilian
Journal of Geological Sciences and Applied Geology Vol 3, No 1 (2019): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v3i1.21235

Abstract

The study area is located at Southern Slope of Mt. Lampobattang, South Sulawesi. According to Armstrong (2012), Sulawesi is controlled by a complex geological structure. This condition can affect the characteristics of subsurface groundwater (Ismawan, 2013) specifically on the distribution and physical properties of springs. So, this research is needed to do. The aim of this study is to know the effect of geological structure on the distribution and physical properties of springs in the study area. This research was conducted with a qualitative analysis method of field data which resulted by geological and hydrogeological mapping at the study area. Based on the analysis results, the study area is consisted of 7 rock units consist of tuff, breccia and lava. There are 6 faults that control the study area with SW-NE and SE-NW trend. The study area is divided into 3 fracture density zones, those are low fracture density (0-500 M-1), medium fracture density (500-950 M-1), and high fracture density (950-1200 M-1). The geological structure affects the distribution of springs and their physical characteristics. This is evidenced by the appearance of springs along the fault and in the medium to high density zone. The characteristics of the Physical Properties of springs are influenced by the occurrence of faults and fractures in the study area that make the low values of EC and TDS. TDS values of springs have a vulnerable value of 0-193 ppm and EC values 0-357 μS. Therefore, the fracture and fault as the geological structure affect the distribution and physical properties of springs in the study area.
MANAGEMENT OF THE BATUR GEOPARK AS GEOLOGICAL CONSERVATION BASIS Sapari Dwi Hadian; Bombom Rachmat Suganda; Cecep Yandri Sunarie; Mochamad Nursiyam Barkah; Teuku Yan W M Iskandarsyah; Ratu Bulqiah Ulfa; Ayu Krishna Yuliawati; Kurnia Arfiansyah
Journal of Geological Sciences and Applied Geology Vol 6, No 1 (2022): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v6i1.45208

Abstract

The Batur Caldera is located in Kintamani District, Bangli Regency, Bali Province. The coordinates are 8 0 14.30' South Latitude, 115 0 22.30 East Longitude. The closest city distance is Bangli. The Batur Caldera contains the Batur Volcano and to the right is Lake Batur. Around it, in accordance with the beliefs of the local community, there are many temples, such as Besakih Temple and Pasar Agung Temple.Indonesia's success in making the Batur Caldera a Geopark recognized by UNESCO, thanks to the hard work of the Bangli Bali Regent/Pemda, Kemenparekraf, ESDM Geology Agency. In an effort to promote themselves and improve the quality of Batur Caldera geopark tourist destinations.Indonesia's wealth consisting of flora, fauna, cultural diversity, is a tourism asset that Indonesia already has that is able to realize love for national diversity as well as national unity. In addition, geological heritage (geoheritage) and sustainable geological diversity are the beginning of a geological park (geopark) towards nature-based tourism activities (geotourism). Geopark is the protection of cultural and natural heritage by emphasizing the potential between socio-economic and cultural development and the preservation of the natural environment. Geotourism as an earth heritage contains geological sites, which can produce science, scarcity, beauty, and education. Referring to conservation, education, and local economic growth.In realizing Geotourism in Indonesia, it is necessary to have the role of Tourism Stakeholders, namely a group of tourism actors who are responsible for implementing tourism that is responsible for preserving nature and is sustainable, including the Central Government, Regional Government, Private sector, and the Indonesian Tourism Promotion Agency.The government is supervised by the Ministry of Tourism and Creative Economy which is handed over to the Culture and Tourism Office in each region in the development of infrastructure, policies, regulations and promotions. In addition, the Geology Agency, as an institution that carries out geological conservation efforts in the context of sustainable development, is planning and preparing to organize the Geotourism. Besides that, there is the role of the community, several expert institutions in their fields to empower the community to be able to participate in the geotourism industry. Keyword : Geopark, Geotourism, Stakeholders, Batur Caldera
EFFECT OF BEDDING PLANES ON SLOPE STABILITY IN COAL OPEN MINE PT. PAMAPERSADA NUSANTARA DISTRICT ASMI, CENTRAL KALIMANTAN Faisal Akbar; Raden Irvan Sophian; Dicky Muslim; Sahala Manullang
Journal of Geological Sciences and Applied Geology Vol 4, No 1 (2020): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i1.29069

Abstract

Bedding planes are one of the distinctive features of an open coal mine. The presence of the bedding planes can be a slip surface on a slope that has a dip direction relatively in the same direction as the bedding planes. Kinematic analysis for open pit slopes is one important aspect of the influence of the bedding planes in minimizing the occurrence of landslides. The purpose of this research is to explain the effect of the presence of bedding planes on slope stability. The method used is secondary data collection, field observations, and kinematic analysis. The results showed that the slopes of the study area were composed of sandstone, claystone, siltstone, carbonaceous claystone, and coal. Carbonanaceous claystone as a weakly layer. The rock bedding area on this slope has a strike/dip N 288 ° E / 17 °, while the slope of the research has an overall slope 29 ° and a slope dip direction N 15 ° E. The dip direction value that is relatively unidirectional between the bedding planes and the slope of the research with a difference of 3 ° can be the cause of the slip surface and is prone to landslides. Thus, the slopes of the study area have the potential plane failure so that geotechnical engineering is needed in the next mining process to ensure slope stability.
THE PRESENCE OF REVERSE SLIP FAULT AND ITS IMPLICATION TO GEOMORPHOLOGY DEVELOPMENT AND LITOLOGY DISTRIBUTION AT CIKASO REGION, CIAMIS DISTRICT, WEST JAVA. Iyan Haryanto; Anisa Ayu Saputro; Alvin Adam Arifin; Nisa Nurul Ilmi; Edy Sunardi
Journal of Geological Sciences and Applied Geology Vol 2, No 6 (2018): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i6.20863

Abstract

Distribution of stratigraphic sequence as the basis of various geological studies has been carried in many researches. The presence of various rock can be affected by tectonic events that have occurred before, during, and after their formation. Besides that, control of geological structure will support other research such as geomorphology, and stratigraphy. This research purpose to know what structure develop and correlation between structure and rock distribution, in Cikaso Region, Ciamis District, West Java. The method of this paper are geological mapping and studio analysis. Geological mapping carried to take out data of lithology strike dip and structure. And studio analysis to processed data with software. Geomorphology of research area are four units, that are structural hills of steep slope unit, structural hills of rather steep slope unit, structural plain of sloping slope unit, and structural plain of very sloping slope unit. There are two geology structure, are Cikaso Thrust Fault and Cigayam Sinistral Shear Fault. Based on lithostratigrapgic aspect, they are five rocks units. From old to young are Volcanic Breccia, Non Carbonate Sandstone, Clastic Limestone, Carbonate Sandstone, and Carbonate Claystone.
SLOPE STABILITY ANALYSIS USING FINITE ELEMENT METHOD (FEM) IN WARA OPEN PIT COAL MINE, PT ADARO INDONESIA, TABALONG, SOUTH KALIMANTAN Josua Washington Sihotang; Taufiq Bakhtiar; Nur Khoirullah; Raden Irvan Sophian; Zufialdi Zakaria
Journal of Geological Sciences and Applied Geology Vol 3, No 3 (2019): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v3i3.25667

Abstract

The stability of slope is impacted by Rock Mass Rating, material properties, and slope geometry. Furthermore, the slope stability analysis was needed to know the slope stability condition. This research aims to know the Strength Reduction Factor (SRF) value by using Finite Element Method (FEM) using Hu=1 and Hu=Auto. The geotechnical mapping that is Rock Mass Rating (RMR) and Measured Section were done to get the Geological Strength Index (GSI) and profile of layer rocks in highwall slope SCT_J1 and SCT_J2. From the FEM analysis, actual slope SCT_J1 has the SRF=1.25 with Hu=1 and SRF=1.4 with Hu=Auto. SCT_J2 has SRF=1.21 with Hu=1 and SRF=1.3 with Hu=Auto. From the slope stability analysis, SCT_J1 and SCT_J2 were classified into stable slope due to the SRF value higher than 1.2.
THE SINISTRAL STRIKE SLIP FAULT AS AMPANA BASIN CONTROLLER IN CENTRAL SULAWESI Rahmat Yantono Saragih; Iyan Haryanto; Emi Sukiyah; Nisa Nurul Ilmi; Edy Sunardi
Journal of Geological Sciences and Applied Geology Vol 2, No 4 (2018): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i2.18289

Abstract

The presence of gas seepage born in Tanjungapi precisely in the southwestern part of the basin.This remission is supposed to be formed from main rocks of Mesozoic aged. The condition ofAmpana Basin formation cannot be separated from the effect of the relatively northeast-southeastsinistral strike-slip-fault. Based on the 43 outcrop, the main deformation product was identified asan extensional/hybrid joint with a relatively west-east fault line structure on average shear strain(η) = 58o (+) to (η) = 60o (+) and in form of the relatively northwest-southeast strike-slip-faultstructure line with the range of shear strains value between (η) = 45o (+) to (η) = 54o (+). Thekinematics movement of relatively vertical main stress gives a subsidence impact on the surfaceof Mesozoic-Paleogenic aged rock. The sedimentation process of Neogene-aged clastic, from theBongka Formation, Kingtom Formation, and Lonsio Formation ran fast and make the lowerMesozoic-Paleogene-aged rock being burdened by the upper younger rocks. The tectonicdevelopment in Ampana Basin is recorded in Lonsio Formation, Bongka Formation, and limestonein the form of structural indication and deformation showing the period of Central Miocene toHolocene tectonic with the relatively west-east direction of the main regional stress. Keywords: Ampana basin, deformation, strike slip fault, Sulawesi, Tanjungapi

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