Claim Missing Document
Check
Articles

Found 2 Documents
Search

ANALYSIS OF THE EXISTENCE OF GEOTHERMAL MANIFESTATIONS USING FAULT FRACTURE DENSITY (FFD) IN TEMPURAN DISTRICT, MAGELANG REGENCY Salma khoirunnisa; Wibowo, Nugroho Budi; Rosyida, Hana; Khaerunnisa, Icha; Jannah, Dea Mutiara; Elsha C., Fathunajah; Mery S. A., Indar
KURVATEK Vol 9 No 1 (2024): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v9i1.4701

Abstract

Being in an active fire lane means that Indonesia has geothermal potential. The geothermal research location is in the Tempuran area, Magelang Regency. The method used is by using alignment in the National Digital Elevation Model (DEMNas) data and calculating it using the Fault Fracture Density (FFD) method, the result of which is a contour map. This research aims to identify the existence of geothermal manifestations with FFD values. The research results show that the FFD value in the Tempuran geothermal manifestation area varies between 0.09 - 1.80 km/km2. The FFD value shows that the Tempuran geothermal manifestation is in a low density zone. There is no direct correlation between the presence of geothermal manifestations and the FFD value. The Tempuran geothermal manifestation is thought to be related to geological formations composed of volcanic rock and related to an aquifer system, as well as faults that trend northwest-southeast.
Identifikasi Nilai Resistivitas Bawah Permukaan Area Longsor Dusun Bengle, Wonogiri : Identification of Subsurface Resistivity Values in the Bengle Hamlet Landslide Area, Wonogiri Khaerunnisa, Icha; Mery S. A., Indar; Affrilianto, Riko; Susanti, Dwi Budi; Suwondo, Wawan Joko; Niyartama, Thaqibul Fikri
Jurnal Stasiun Geofisika Sleman Vol. 3 No. 1 (2025): Jurnal Stasiun Geofisika Sleman (JSGS) - Juni 2025
Publisher : Stasiun Geofisika Kelas I Sleman

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mendeteksi lapisan bawah permukaan daerah Dusun Bengle yang pernah mengalami longsor pada tahun 2017 dengan menggunakan metode geofisika resistivitas dipole-dipole. Pengukuran dilakukan sepanjang transek berarah Barat-Timur sepanjang 160 m. Hasil pengukuran diolah menggunakan perangkat lunak Res2dinv untuk menghasilkan model penampang dua dimensi. Berdasarkan nilai resistivitas dan pengelompokan warna, diduga terdapat tiga lapisan, yaitu: lapisan atas berupa tanah lempung basah dengan nilai resistivitas 2,01-33,6 Ωm pada kedalaman 0-13,5 m, lapisan tengah berupa tanah lempung ter konsolidasi dengan nilai resistivitas 33 ,6-2310 Ωm, dan lapisan bawah berupa batuan dasar dengan nilai resistivitas 2310-38741 Ωm.