Jurnal RISET Geologi dan Pertambangan
Vol 31, No 1 (2021)

AQUIFER MAPPING BASED ON STRATIGRAPHIC AND GEOELECTRICAL DATA ANALYSIS IN BEDOYO REGION, GUNUNG KIDUL REGENCY, YOGYAKARTA SPECIAL REGION

Fatimah Fatimah (institut teknologi nasional yogyakarta)
Al Hussein Flowers Rizqi (Institut Teknologi Nasional Yogyakarta (ITNY))
Waskita Murti Bambang Yudhana (Institut Teknologi Nasional Yogyakarta (ITNY))



Article Info

Publish Date
30 Jun 2021

Abstract

The research area is a high karst area composed of carbonate rocks, where drought occurred almost every year. This study aimed to determine water availability in aquifer rocks by analyzing the surface geology and subsurface layers (geophysical method). We used the Schlumberger configuration in the geoelectric method at four locations in the study area to determine the resistivity value of the rocks beneath the surface. The results revealed that the site comprises tuff, crystalline limestone, layered limestone /chalky, and gravel to clay deposits. An aquifer was only found in Asem Lulang Village, which has a wedge layer with a thickness of 59 meters and thinned down to 5 meters towards the village of Ngalas Ombo. The value of the resistivity aquifer ranges from 0.18 to 9.18 ohm.m. The existence of that aquifer could indicate that the aquifer is only found in weakly undulated  

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Journal Info

Abbrev

JRISGEOTAM

Publisher

Subject

Earth & Planetary Sciences

Description

RISET (Indonesian Journal of Geology and Mining) welcomes article submissions dealing with Geology; Applied Geophysics; ...