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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Transformasi: Jurnal Pengabdian Masyarakat Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Jurnal Geosaintek Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology Civil Engineering Dimension Jurnal GEOSAPTA Jurnal Kelautan Nasional Dharma Bakti Indonesian Journal of Community Services Dinamika Journal : Pengabdian Masyarakat Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal of Earth and Marine Technology (JEMT) Industrial Research Workshop and National Seminar Prosiding University Research Colloquium Darma Sabha Cendekia Jurnal Profesi Insinyur Indonesia Jurnal Geosaintek Jurnal Pengabdian Masyarakat Terapan Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Sachrul Iswahyudi
Jurusan Teknik Geologi, Fakultas Teknik, Universitas Jenderal Soedirman
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Transportation Other

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Journal : Journal of Geoscience, Engineering, Environment, and Technology

 1 
The Origin of Geothermal Water Around Slamet Volcano - Paguyangan - Cipari, Central Java, Indonesia Sachrul Iswahyudi; Indra Permanajati; Rachmad Setijadi; Januar Aziz Zaenurrohman; Muhamad Afirudin Pamungkas
Journal of Geoscience, Engineering, Environment, and Technology Vol. 5 No. 4 (2020): JGEET Vol 05 No 04: December 2020
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2020.5.4.4112

Abstract

The existences of several hot springs between Slamet volcano, Paguyangan, and Cipari Districts raised questions regarding their origin. Several studies have been conducted related to the hydrothermal system at the location. Subsequent studies are needed to understand the hydrothermal system at the research site for the sustainability and conservation of geothermal natural resources. This research has reviewed several previous studies plus the latest information on the origin of hot spring water with the help of deuterium (2H) and 18O isotopes. This study used geochemical analysis of hot springs (geothermal) and local meteoric water to obtain information on isotope values. This was used for the interpretation of the origin of geothermal water. This study also used regional geological analysis methods for the interpretation of the mechanism for the emergence of these hot springs. The results of the analysis informed that the origin of hot water was local meteoric water. The geological structure was weak enough to allow water from the geothermal reservoir to reach the surface and meteoric water into the reservoir.
Integrated Subsurface Analysis of Thickness and Density for Liquefaction Hazard: Case Study of South Cilacap Region, Indonesia. Maulana Rizki Aditama; Huzaely Latief Sunan; FX Anjar Tri Laksono; Gumilar Ramadhan; Sachrul Iswahyudi; Fadlin
Journal of Geoscience, Engineering, Environment, and Technology Vol. 6 No. 1 (2021): JGEET Vol 06 No 01 : March (2021)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2021.6.1.5892

Abstract

The thickness of the liquefable layer can be the factor inducing liquefaction hazard, apart from seismicity. Several studies have been conducted to predict the possibility of the liquefable layer based on the filed sampling. However, a detailed investigation of the subsurface interpretation has not been defined, in particular the thickness estimation of the liquefable layer. This study is carried out in south Cilacap area where potential liquefaction is exists due to the earthquake history data and near surface condition. The aim of this study is to investigate the physical properties and thickness distribution using GGMplus gravity data and resistivity data. This research is conducted by spectrum analysis of gravity model and 2D resistivity model . This study’s main results is by performing the residual gravity anomaly with the associated SRTM/DEM data to define the subsurface physical distribution and structural orientation of the area. Residual gravity anomaly is also separated through the low pass filter in order to have robust interpretation. The residual anomaly indicates that the area has identical structural pattern with geological and SRTM map. The results show a pattern of high gravity index in the northeast area of ​​the study having range of 70 – 115 MGal gravity index, associated with the volcanic breccia, and a low gravity profile with less than 65 in the southwest, associated with the alluvial and water table dominated distribution. The thickness of Alluvial is determined by resistivity model with H1 at a range of 3 meters and H2 at a range of 4 m. This research is included in the potential liquefaction category with the potential for a large earthquake.
Co-Authors Aditama, Maulana Rizki Akhmad Khahlil Gibran Andreas, Roy Anjar Tilaksono Anjar Tri Laksono Anjar Trilaksono Aries Susanty Arwan Apriyono Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo asmoro Widagdo Asmoro Widagdo, Asmoro Attabik, Laskarul Wildan Bela Agung Pratama, Bela Agung Dedi Kusnadi Dedi Kusnadi Dino Gunawan Pryambodo Dudi Hermawan Fadlin Fadlin Fadlin Fajar Rizki Widiatmoko Fajar Rizki Widiatmoko Firmansyah, Irwan FX Anjar Tri Laksono FX Anjar Tri Laksono FX Anjar Tri Laksono FX Anjar Tri Laksono FX Anjar Tri Laksono Gentur Waluyo Gentur Waluyo Gentur Waluyo, Gentur Gibran, Akhmad Khahlil Gumilar Ramadhan Hadi, Mochammad Nur Hari Prihatno Hasanuddin - Hermawan, Dudi Huzaely Latief Sunan Huzaely Latief Sunan Huzaely Latief Sunan Idra Permanajati Indra Permana Jati Indra Permana Jati Indra Permana Jati Indra Permanajati, Indra Irwan Firmansyah Januar Aziz Zaenurrohman Januar Fery Irawan Joko Prihantono Karisun, Kharisun Laksono, Anjar Tri Laksono, FX Anjar Tri Laskarul Wildan Attabik Mochammad Nur Hadi Muhamad Afirudin Pamungkas Muhamad Afirudin Pamungkas Muhammad Ramdhan Mustofa, Santia Ardi Nasir Sudirman Pamungkas, Muhamad Afirudin Paryanto Paryanto Prasetya, Yogi Adi Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi, Rachmad Rino Wahyu Pamungkas Santi Dwi Astuti Santia Ardi Mustofa Semeidi Husrin Siswandi Siswandi Siswandi Siswandi, Siswandi Sukmaji Anom Raharjo Sumiyanto Sumiyanto Sunan, Huzaely Latief Syahrial Nur Amri Widiatmoko, Fajar Rizki Yanto Yanto Zaroh Irayani