1. Aquifer geometry identification based on geoelectrical data in the central part of Tegal-Brebes Groundwater Basin.
- Author
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Puspita, Tita Rahma, Eka Putra, Doni Prakasa, and Kuncoro, Dwi Agus
- Subjects
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GEOPHYSICAL well logging , *ALLUVIUM , *GROUNDWATER management , *GEOPHYSICAL surveys , *DATA logging , *AQUIFERS - Abstract
One important crucial data in terms of groundwater management in the Tegal-Brebes Groundwater Basin is to know the configuration of the aquifer system. The aquifer geometry can be determined by interpreting resistivity value from geoelectrical surveys and geophysical logging data. In this research, to identify the aquifer geometry in the central part of the Tegal-Brebes Groundwater Basin, vertical electrical sounding (VES) of the geoelectrical method is measured for six (4) stations, representing north to the south distribution of the aquifer system and 129 geophysical well logging data. Geologically, the northern part of the research area originated from alluvial deposits, and the central regions consist of lahar deposits which are volcanic products from Slamet Volcano. The southern part consists of andesite to basalt composition in the form of volcanic breccia, tuff, and lahars from the eruption of the Quaternary – Pleistocene Slamet Volcano. The VES measurement is conductedby using the Wenner-Schlumberger configuration and carried out with a maximum length of 400 meters. This research reveals the subsurface model in the study area consists of 7 layers, which is 3 sand layer and 4 clay layer. The sand layer is interpreted as the aquifer layer and the clay layer is interpreted as the aquiclude layer. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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