Tuk Sibedug, between myth and science (Using geoelectricity method to determine the subsurface of Tuk Sibedug)
M. Faizal Zakaria, Yatini, I Putu Gema B.W, Firasti Herniaswati
1. Teknik Geofisika, UPN "Veteran" Yogyakarta
2. Teknik Geofisika, UPN "Veteran" Yogyakarta
3. Teknik Lingkungan, UPN "Veteran" Yogyakarta
4. Fisika, Universitas Islam Negeri Sunan Kalijaga Yogyakarta
Abstract
Tuk sibedug is a spring located in Seyegan sub-district, Sleman Regency. This spring is never dry even in the long dry season. Myth says that the spring is purified because it was discovered by Sunan Kalijaga during the Islamic dispatch in Java. This study aims to determine the subsurface conditions around Tuk Sibedug and determine the configuration of groundwater systems in these areas. The study was conducted by measuring the geoelectric method of Dipole-dipole configuration. Measurements were made on 3 tracks around the spring with a target depth of about 90 m. The tool used is Syscal Jr Switch-48. The software used is Global Mapper13, Surfer10, Res2dinv3, and Arcgis 10.3. The result interpreted as clay stone, sandstone, and breccia. The clay has the smallest resistivity value ie (3.80 - 9,18) Ohm-meter, sandstone (9,18 - 34,40) Ohm-meter, and breccia (34,40 - 83,10) Ohm-meter. Ground water is stored in sandstone. The type of aquifer is a confined aquifer so it has it own natural pressure to push the water to the surface.
Keywords: Tuk Sibedug, Resistivity, aquifer
Topic: Geophysics,Geomatics and Geochemistry