Geoelectric resistivity aplication for cave determining in Seropan area Gunung Kidul, Yogyakarta

Pulung A. Pranantya, Nurlia Sadikin

Abstract


In terms of geology, most areas in south of the Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the existence of underground river in caves, however, indicate the potential amount of water within the area, especially in the eastern part of the Gunungkidul District. Although limited information available, some fishermen have discovered that Seropan cave contains fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using a multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The isopach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results, i.e. 110o2223.6388 EL 8o42.874 SL. [DY1][PP2]

[DY1]Perbaiki grammar

In terms of geology, most areas in south of Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the exixtence of underground river in caves, however, indicate potential amount of water within the area especially in eastern part of Gunungkidul District. Although limited information available, some fishermans has discovered that Seropan cave contain fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The iso pach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results i.e. 110o2223.6388 EL 8o42.874 SL.

[PP2]Sudah diperbaiki


Keywords


Limestone; Seropan Cave; Gunung Kidul; resistivity method; sub-surface river

References


G. Leucci. 2005. Integrated Geophysical Surveys to Assess the Structural Conditions of a Karstic Cave of Archaeological Importance. Natural Hazards and Earth System Science. European Geosciences Union 5 (1): 17-22.

Grandis, Hendra. 2008. Metode Geolistrik. Institut Teknologi Bandung, Bandung. Pp 1-42.

Kirsch, Reinhard. 2006. Groundwater Geophysics, A Tool For Hydrogeology, Springer-Verlag Berlin Heidelberg 2006. Germany. Pp 85-116, 402-436.

Kollert. 1969. Groundwater Exploration By The Electrical Resistivity Method, Geophysical Memorandum 3/69. Geophysics & Electronics, Atlas Copco ABEM, Sweden. Pp 1 - 9

MacDonald & Partners. 1984. Greater Yogyakarta Groundwater Resources Study, Volume 3 Groundwater, Volume 3C Cave Survey. Ministry of Public Works

Mitrofan, Horia. 2007. Geoelectrical investigations by means of resistivity methods in karst areas in Romania. Environmental Geology July 2008, Volume 55, Issue 2, pp 405413.

Mohammed I.I. Abu-Shariah. 2009. Determination of Cave Geometry by Using a Geoelectrical Resistivity Inverse Model. Universiti Putra Malaysia, Malaysia.

Pneka, Tom. 2010. Gravitationally Induced Caves and other Discontinuities Detected by 2D Electrical Resistivity Tomography: Case Studies from the Polish Flysch Carpathians. Department of Physical Geography and Geoecology, Faculty of Science, University of Ostrava, Czech Republic.

Rahardjo, W .,dkk. 1995. Peta Geologi Lembar Yogyakarta, Jawa, Skala 1 : 100.000. Pusat Penelitian dan Pengembangan Geologi, Bandung.

Robert, T., D. Caterina, J. Deceuster, O. Kaufmann, and F. Nguyen. 2012. A salt tracer test monitored with surface ERT to detect preferential flow and transport paths in fractured/karstified limestone. Geophysics 77 no. 2: B55-B67.




DOI: https://doi.org/10.32679/jsda.v12i2.53

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