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Pelacakan Airtanah-Dalam Di Kampung Teknologi Desa Suwawal Timur, Kecamatan Pakis Aji, Jepara

Sukadana, I Gde (2010) Pelacakan Airtanah-Dalam Di Kampung Teknologi Desa Suwawal Timur, Kecamatan Pakis Aji, Jepara. In: Seminar Geologi Nuklir dan Sumberdaya Tambang Tahun 2010, 26 Oktober 2010, Jakarta.

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Abstract

Jepara’s Kampung Teknologi located in Suwawal Village, Pakis Aji Subdistrict, Jepara Regency, Central Java with an area of ±140 Ha. The aim of this activities is to get potential drilling location, including stages of activities: desk study, topography measurement, soil/rocks radioactivity measurement, geologi/hidrogeology maping, radon gas measurement, and geoelectric survey. Suwawal Village and it’s surrounding morphology are undulating plain, elevation of 30-72 meters above sea level. Geology of this area compiled by tuffaceous sandstone unit, sandy breccia unit, conglomeratic sandstone unit, laharic breccia unit, and sandy tuff unit. Clay tuff unit, and conglomeratic sandstone at the bottom are not exposed in surface. Radiometric soil value from pebbly sandstone weathering show 200 – 240 c/s, from tuffaceous sandstone weathering show 230 – 260 c/s, and from breccia weathering show 250– 310 c/s. Measurement of radon gas intensity ranged from 45-248 KBq/m3 with anomalous values more than 160 KBq/m3 trending west – east relatively. Based on these anomalies with geological structure measurement and springs alignment there are sinistral fault trending northwest – southeast. Geoelectric measurements using schlumberger configuration carried out by 20 points divide this area into 5 rocks unit based on their resistivity values, namely: laharic breccia with resistivity value range of 111-340 ohm-m, conglomeratic sandstone from 23.26 to 32.77 Ohm-m, wet breccia from 50.5 to 65 Ohm-m, tuff / claystone from 3 to 5.5 Ohm-m, sandstone from 24.5 to 35 ohm-m. Inthis area yield 3 potential locations, there are SWL-10 (as potential-1), SWL-14 (as potential-2), and SWL-4 (as potential3), with conglomeratic sandstone, breccia, and sandstone as potential aquifer.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Aquifer, Deep groundwater, geology, geophysic, Jepara.
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Bahan Galian Nuklir > Teknik Eksplorasi Bahan Galian Nuklir
Divisions: Pusat Teknologi Bahan Galian Nuklir
Depositing User: USER PTBGN BATAN
Date Deposited: 04 May 2018 09:47
Last Modified: 04 May 2018 09:47
URI: http://repo-nkm.batan.go.id/id/eprint/910

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