Distribution of the Gunungsewu karstic aquifers based on fractal analysis – case study: Semanu and surrounding area, Yogyakarta, Indonesia

702001-100794-601-B
Author : Sari B. Kusumayudha, M.T. Zen, Sudarto Notosiswoyo & Rudy Sayoga Gautama
Publication : Bulletin of the Geological Society of Malaysia
Page : 345-350
Volume Number : 43
Year : 1999
DOI : https://doi.org/10.7186/bgsm43199934

Bulletin of the Geological Society of Malaysia, Volume 43, Dec. 1999, pp. 345 – 350

Distribution of the Gunungsewu karstic aquifers based on fractal analysis – case study: Semanu and surrounding area, Yogyakarta, Indonesia

SARI B. KUSUMAYUDHA1, M.T. ZEN2, SUDARTO NOTOSISWOYOAND RUDY SAYOGA GAUTAMA3

1Geology Department, UPN “Veteran” Yogyakarta, Indonesia

2Geophysics Department, Institute of Technology, Bandung, Indonesia

3Mining Engineering Department. Institute of Technology, Bandung, Indonesia

 

Abstract: In the Semanu Subdistrict, a part of the Gunungsewu Region, Southern Mountains of Central Java, Indonesia, the lithologic formation comprises carbonate rocks, which are composed of four lithofacies namely boundstone, packstone, wackestone, and marl. All of the carbonates except marl are very prospective aquifers in the study area. Using conventional mapping method, determining the distribution of these aquifers, is not easy to do, due to their almost similar physical characteristics in the field. Fractal analysis, in this study, can be utilized to help outline the distribution of the carbonate aquifers mentioned above. The delineation is executed by unifying the fractal dimension values of the topography on the study area, and then drawing their boundaries. It can be done because the topographic irregularity degree of a particular place, which represents the performing geologic formation, is actually specified by its fractal dimension.

https://doi.org/10.7186/bgsm43199934


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