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All Journal Bulletin of Scientific Contribution : Geology Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geosciences and Applied Geology
Bombom Rachmat Suganda, Bombom Rachmat
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Pengaruh Perubahan Lahan Dan Iklim Terhadap Ketersediaan Airtanah Pada Subdas Cibeureum (Kawasan Bandung Utara) Suganda, Bombom Rachmat; Hani, Fauziyah; Hadian, Sapari Dwi; Barkah, Muhammad Nursiyam; Listiawan, Yudhi
Dinamika Rekayasa Vol 17, No 2 (2021): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2021
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2021.17.2.331

Abstract

SubDAS Cibeureum merupakan bagian dari DAS Citarum. SubDAS Cibeureum merupakan bagian dari Kawasan Bandung Utara. Seiring pertumbuhan penduduk yang meningkat, pembangunan pun terus terjadi sehingga mengubah tutupan lahan dari hutan menjadi pemukiman, jalan, industri, bahkan kawasan ini sangat diminati untuk dijadikan tempat wisata padahal disisi lain area ini harus dilindungi karena merupakan kawasan resapan air. Selain perubahan lahan, perubahan iklim juga akan mempengaruhi potensi air. Oleh karena itu untuk melihat pengaruh perubahan lahan dan iklim terhadap potensi air dilakukan perhitungan ketersediaan air menggunakan metode neraca air thornthwaite. Parameter yang digunakan adalah data curah hujan dan suhu dari stasiun BMKG Bandung  tahun 2007-2017 dan data penutupan lahan Jawa Barat tahun 2009, 2012 dan 2017. Rata-rata curah hujan periode 2007-2009 sebesar 2084.7 mm/tahun, periode 2010-2012 sebesar 2664.3 mm/tahun, sedangkan periode 2013-2017 sebesar 2583 mm/tahun Rata-rata evapotranspitrasi periode 2007-2009 sebesar 1188.94 mm/tahun, periode 2010-2012 sebesar 1194.41 mm/tahun, dan periode 2013-2017 sebesar 1210.71 mm/tahun. Karena adanya perubahan lahan, maka koefisien run off meningkat dari 0.26 (2009), 0.31 (2012), dan 0.375 (2017). Dari hasil perhitungan didapat bahwa dari tahun 2007-2012, kawasan ini mengalami perubahan lahan yang mengakibatkan kenaikan debit run off dan perubahan iklim yang mengakibatkan kenaikan debit presipitasi efektif. Dan dari hasil penelitian didapat bahwa ketersediaan air meningkat pada tahun 2012 karena curah hujan yang meningkat cukup besar pada periode tahun 2010-2012
PRELIMINARY STUDY OF ROCK GEOCHEMISTRY FOR GOLD MINERALIZATION IN AREA-“X”, CENTRAL KALIMANTAN Sunarie, Cecep Yandri; Fachrudin, Kurnia Arfiansyah; Barkah, M. Nursiyam; Hadian, M Sapari D.; Suganda, Bombom Rachmat; Helmi, Faisal
Journal of Geological Sciences and Applied Geology Vol 5, 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.v5i3.38348

Abstract

Area-“X” is located in the Central Kalimantan Province of Indonesia, one of several places in the Central Kalimantan region with a high potential for gold deposits. During the investigation, selected mineralized rock samples were collected, resulting in two rock outcrop samples and four rock float samples. All samples were analyzed for Au content at the local laboratorium using the Aqua Regia AAS method.  The lithology of the investigation area can be classified into two different rock units: The sedimentary rock unit and the igneous rock unit. The rock outcrop samples assay return with gold (Au) content from 0.21 ppm to 1.43 ppm. At the same time, the rock floated Au content from 0.79 ppm, Au, to 3.86 ppm. One rock outcrop sample named “Outcrop-001” identified as Quartz Vein up to 40cm width with N500E/850 strike and dip. The other two rock outcrop samples designated “Outcrop-002” and “Outcrop-003” are the parallel quartz veinlet up to 8cm width with strike N350E and unidentified dip. Based on field observation and assay results, this area-“X” has potential for gold mineralization as vein type.
POTENCY OF SOIL WATER IN MASINAM ISLAND BASED ON THE ROCK RESISTIVITY VALUE Firmansyah, Yusi; Restu, Abigail; Suganda, Bombom Rachmat; Dwi Hadian, Mohammad Sapari; Ganjar Gani, Reza Mohammad
Journal of Geological Sciences and Applied Geology Vol 2, No 5 (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.v2i5.20241

Abstract

Groundwater is water that is contained in soil layers or rocks that are located below the soilsurface. The resistivity or geoelectric method is used to obtain an anomaly of material under thesurface using electrical properties. 2 Dimensional Geoelectric Measurements are carried out asmany as 5 Tracks. From the results of the analysis based on surface data, the resistivitydistribution value in the study area can be interpreted to obtain 3 rock packages with low, mediumand high types of resistance. If it has low resistance (smaller than 45 Ωm), the lithology in thispackage is claystone, this layer is interpreted as not being able to store water and tends to easilyescape the water. While the value of the medium type of resistance (45 μm to 200 Ωm) has goodporosity. The lithology of this package is interpreted as sandstone. Lithology at high resistivityvalues (greater than 200 Ωm), is interpreted as limestone. This limestone layer is presumed tohave undergone a karstification process and presumably, this layer has the potential to be a goodaquifer that can accommodate enough water and drain at a certain time.
Fulfillment Of Water Needs With Rainwater Harvesting Concept at Campus Universitas Padjadjaran, Jatinangor, West Java SUGANDA, BOMBOM RACHMAT; Barkah, Mochamad Nursiyam; Iskandarsyah, Teuku Yan Waliyana Muda; Natasia, Nanda; Dwi Hadian, Mohamad Sapari
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.
MANAGEMENT OF THE BATUR GEOPARK AS GEOLOGICAL CONSERVATION BASIS Hadian, Sapari Dwi; Suganda, Bombom Rachmat; Sunarie, Cecep Yandri; Barkah, Mochamad Nursiyam; W M Iskandarsyah, Teuku Yan; Bulqiah Ulfa, Ratu; Krishna Yuliawati, Ayu; Arfiansyah, Kurnia
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
ASPEK FISIK DASAR DALAM PENENTUAN ARAHAN KESESUAIAN LAHAN PADA RENCANA TATA RUANG WILAYAH KABUPATEN BANGKA SELATAN Suganda, Bombom Rachmat
Bulletin of Scientific Contribution Vol 7, No 1 (2009): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (712.988 KB) | DOI: 10.24198/bsc.v7i1.8229

Abstract

Land use in spatial planning, often forgetting that the land carrying capacity refers to the thematic maps. The number of land suitability analysis on spatial planning that is not appropriate, and often result in the basic physical problems. Basic physical problems will interfere the facilities and infrastructure which supporting economic activity, resulting in financing that sometimes is not economical.
PENGEMBANGAN KAWASAN PERMUKIMAN DAN KAWASAN INDUSTRI BERDASARKAN KEMAMPUAN LAHAN SERTA FASIES VULKANIK KUARTER Suganda, Bombom Rachmat; Hutabarat, Johanes; Sulaksana, Nana; Hendarmawan, Hendarmawan
Bulletin of Scientific Contribution Vol 15, No 1 (2017): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (665.921 KB)

Abstract

AbstrakGunung Gede Pangrango dan Gunung Salak merupakan gunung api strato  yang terdapat di Sukabumi Bogor merupakan daerah yang subur sehingga kawasan budidaya pertanian yang sangat subur beralih fungsi menjadi kawasan budidaya permukiman serta industri. Karakteristik batuan, kemiringan lereng, bahaya geologi, potensi air tanah, tekstur tanah, drainase, kepekaan tanah terhadap erosi dan curah hujan merupakan suatu hal yang sangat penting dalam penentuan kesesuaian lahan yang akan mengatur tata guna lahan.  pemanfaatan lahan sebagai kawasan budidaya sehingga harus diatur pemanfaatan lahannya sehingga tidak membahayakan bagi manusia serta menjaga keseimbangan alam. Gunung Salak daerah resapan terletak pada fasies medial dengan elevasi 600-900 meter di atas permukaan laut dan pada lereng Gunung Pangrango daerah resapan terletak pada fasies proksimal dengan elevasi 2058-21227 meter di atas permukaan laut.Kesesuaian lahan pada daerah lereng gunung api vulkanik di daerah penelitian meliputi wilayah limitasi di sekitar fasies sentral dan proksimal, kemudian wilayah  kendala di sekitar ujung akhir fasies proksimal kemudian wilayah limitasi pada fasies medial serta pada ujung akhir medial merupakan wilayah kendala  dan  wilayah kemungkinan di sekitar fasies distal. Kata Kunci :  gunungapi, pengembangan kawasan, kemampuan lahanabstract Cicurug area and Caringin located on the border of Sukabumi and Bogor in West Java. It is a part Mount Salak and Pangrango’s slopes, which is a volcano quarter a certainly fertile area for farming area. The very fertile farming area is then converted into residential and industrial area. Analysis of land capability in the form of rock characteristics, slope, geological hazards, water potential, soil texture, drainage, soil sensitivity to erosion and rainfall are very important in determining the suitability of land that would manage land use. Factors of natural hazards as well as water catchment areas is a limiting factor for land use as cultivated area that should be regulated so that the land use is not harmful to people as well as maintaining the balance of nature. Catchment areas in the region shows the slopes of Mount Salak catchment area lies in the medial facies with elevation of 600-900 meters above sea level and on the slopes of Mount Pangrango catchment areas located in the proximal facies with 2058-21227 meters elevation mean sea level.Key word : volcano, Area Development, Land capability
Co-Authors Bulqiah Ulfa, Ratu Cecep Yandri Sunarie, Cecep Yandri Dwi Hadian, Mohamad Sapari Dwi Hadian, Mohammad Sapari Fachrudin, Kurnia Arfiansyah Faisal Helmi Ganjar Gani, Reza Mohammad Hadian, M Sapari D. Hani, Fauziyah Hendarmawan Hendarmawan, Hendarmawan Iskandarsyah, Teuku Yan Waliyana Muda Johanes Hutabarat Krishna Yuliawati, Ayu Kurnia Arfiansyah, Kurnia M. Nursiyam Barkah, M. Nursiyam Mochamad Nursiyam Barkah Muhammad Nursiyam Barkah, Muhammad Nursiyam Nana Sulaksana Nanda Natasia Restu, Abigail Sapari Dwi Hadian, Sapari Dwi W M Iskandarsyah, Teuku Yan Yudhi Listiawan Yusi Firmansyah, Yusi