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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

Analisis Daerah Potensi Longsor Menggunakan Metode Geolistrik Resistivitas di Danau Kastoba Pulau Bawean Indonesia Karimah Karimah; Adi Susilo; Eko Andi Suryo; Aunur Rofiq; Muhammad F.R. Hasan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1414

Abstract

Kastoba Lake in Bawean Island Indonesia is a tourist attraction that has a level of vulnerability in landslide disasters. The landslides has been happen. From the large and small scale in the Kastoba Lake. Base on the problem, the landslides occured due to the field of derailment. According to the above statement, it was necessary to know the subsurface structure and the field of avalanche derailment in the kastoba lake area. This data was allowed by geophysical resistivity method which a dipole-dipole configuration with 4 measurement points. The acquisition of data was based on preliminary studies from the analysis of landslide vulnerability level maps (DEM Alos data processing) that have been done first. The results of lithological analysis with geoelectric resistivity methods in this research obtained three layers of subsurface structure, namely top soil (top layer) with a resistivity value of 7-110 Ωm, clay (middle layer) which was a resistivity value of 110-210 Ωm and lava (bottommost layer) which was a resistivity value of 210-357 Ωm. The field of gelincir in the research area was on the top layer of soil composed of weathering of rocks mixed with organic material or leaf/tree decay with an average depth of 7.25 meters. Thus, this research can be one of the parameters of landslide disaster mitigation in the development of geotourism in Kastoba Lake
3D Modelling of Geoelectrical Resistivity Data to Determine the Direction of Landslides in Kastoba Lake, Bawean Island, Indonesia Karimah Karimah; Adi Susilo; Eko Andi Suryo; Aunur Rofiq; Muhammad F.R. Hasan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 3 (2022): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i3.1714

Abstract

Landslides are one of the factors caused by subsurface structures that are not compact, and have low density or resistivity values due to changes in groundwater. Rainwater that infiltrates into the ground will reach to an impermeable layer which is identified as a slip plane. This research was conducted in the Kastoba Lake area, Bawean Island, Indonesia. The purpose of this study is to determine the slip plane and the direction of the landslide in the studied area. Data acquisition was carried out based on a preliminary study of residual anomaly contour analysis from gravity data, then geoelectric data acquisition was carried out in the studied area. The results of lithological analysis on 3D geoelectric resistivity modeling in this study obtained three layers of subsurface structures, namely topsoil, clay, and lavas. The slip plane of the study area is above the clay layer (7.25 meters depth). The results of the 3D interpretation indicated that the direction of the landslide was towards the north, as evidenced by the existence of public information that the area studied had landslides with the avalanche direction towards the north.  For further analysis, a factor of safety analysis is needed based on the analysis of the bore hole drilling method in the studied area
Co-Authors A'isyah Salimah A. T. S. Azhar A. T. Sudjianto Adi Susilo Adi Susilo Adi Susilo Adi Susilo Adi Susilo Adinegara, Aldo W. Agung B. Broto Agung Budi Broto Agung Teguh Wibowo Almais Agung, P. A. Maha Agus Naba Agus Naba Ahmad Imron Rozuli Ahmad N. Faris Ahmad, Mustaffa A. Alamsyah M. Juwono Alamsyah M. Juwono Amalia Amalia Amalia Amalia Amalia Amalia Anggraeni, Ike Listya Anis Nurullaili Anis Rosyidah Anjar Pranggawan Azhari Annabil, Achmad Achdan Aprilia, Faridha Arbad, Arliandy Pratama Ashari, Fadhil Muhamad Aunur Rofiq Aunur Rofiq Azzahro, Rossyda Bambang Setiahadi Budi Damianto Bunga Puspita, Mayang Daeng A. Suaidi Denny Yatmadi Denny Yatmadi Denny Yatmadi Didik Yudianto Dini Fitriani Dito Ibrahim Gumelar DYAH NURWIDYANINGRUM Eko Andi Suryo Eko Andi Suryo Faridha Aprilia Farizky Hisyam Ferdinal, Ferdinal Firdaus, Devan Maulana Germanus Tirta Tambing Gunawan, Fahdynia Karnira Habibiy Idmi, Mohammad Hakim, Meilia Aquina Hamdi Rifai Haniyyah, Saffanatul Hapsoro, Cahyo Aji Hari Wisodo, Hari Hidayat, Lukman Hakim Hisyam, Farizky I Ketut Sucita Idmi, Mohammad Habibiy Imam H Sasongko Juwono, Alamsyah M. Karimah Karimah Kartikaningsih, Hartati Khuluq, Muhammad Husnul Komarruzaman, Abdul Razaq Linda Sari Wulandari M. I. S. Fazlina Maharani Pertiwi Koentjoro Mauludi Ariesto Pamungkas Mauludi Ariesto Pamungkas Mega Isnaeni Miftakhul Cahyati Mohammad Habibiy Idmi Mohd. J. Bin Ahmad Muhammad Gusti Alif Zuhry Hanafi Muhammad Nizam Zakaria Mujtaba, Mochammad Wafa Husain Musta, Baba Mustaffa A. Ahmad Mustaffa A. Ahmad Muwardi Sutasoma Nur Aziza Putri Osa, Dominggus Benyamin P. A. Maha Agung Prastyo, Redy Eko Putera Agung Maha Agung Putri, Agustine Hanafi Razi, Mohd Adib Mohammad Riandi, Muhammad Alvaro Rinawati Rinawati Rinawati Rinawati Salimah, A’isyah Saputra, Jonathan Siti Rohmah Siti Zulaikah Solly Aryza Sri Herwiningsih Sri Sudaryanti, Sri Sukadi, Zefanya Nicko Sukarman Sukarman Sukir Maryanto Suripto Suripto Susilo, Adi Sutan Haji, Alexander T. SUTIKNO Sutrisno Sutrisno Sutrisno Sutrisno Swastirani, Astika Tri Widya Swastika Tri Widya Swastika, Tri Widya U. A. Abdurrahman Wiwik Handayani Yanuar Setiawan Yanuarini, Erlina Yelvi Yelvi Yoyok Adisetyo Laksono Yudianto, Didik Yunika, Nieske Ari Zainorabidin, Adnan