Studi Akuifer dengan Metode Geolistrik Resistivitas Desa Dadapan Kendal, Ngawi-Jawa Timur

Fajar Rakhmanto, Nicho Andreas Fernando

Abstract

ABSTRAK

Pengukuran geolistrik dilakukan di Desa Dadapan Kecamatan Kendal Kabupaten Ngawi Jawa Timur sejumlah 3 (tiga) titik pengukuran VES (Vertical Electrical Sonding). Hasil pengukuran geolistrik dan data geologi menunjukkan kondisi batuan merupakan satuan Batuapung, Breksi/Andesit dan Batuapung berpasir. Nilai resistivitas yang menunjukkan akuifer pada range 50 – 200 Ohm meter yang terdapat pada batuapung berpasir. Tiga titik pengukuran menunjukkan lapisan akuifer dalam pada batuapung berpasir miring ke titik DDP-3 dengan kedalaman 71 – 180 meter.

Kata kunci : desa dadapan kendal; VES (Vertical electrical Sonding; akuifer; batuapung berpasir


ABSTRACT

Geoelectric measurements in Dadapan Village, Kendal District, Ngawi Regency, East Java were 3 (three) measurement points of VES (Vertical Electrical Sonding). Geoelectric measurement results and geological data indicate rock conditions are units of Pumice, Breccia / Andesite and sandy Pumice. Resistivity values that indicate aquifers in the range 50 - 200 Ohm meters are found in sandy pumice. Three measurement points show the inner aquifer layer in the sloping sandstone to the DDP-3 point with a depth of 71 - 180 meter.

Keywords : dadapan kendal village; VES (Vertical electrical Sonding), aquifer, sandy pumice

Keywords

dadapan kendal village; VES (Vertical electrical Sonding); aquifer; sandy pumice

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References

Badan Pusat Statistik Kabupaten Ngawi. 2016. Ngawi Dalam Angka. Ngawi Jawa Timur

Vingoe, P., 1972, Electrical Resistivity Surveying. Geophysical Memorandum

Santoso, Djoko. 2002. Pengantar Teknik Geofisika. ITB, Bandung

Reynold, J.M. 1997. Introduction to Applied and Environmental Geophysics. John Willey And Son, New York.

Datun, M., dkk. 1996. Peta Geologi Lembar Ngawi (Ngawi 1508-4), Jawa Timur Edisi kedua. Pusat Penelitian dan Pengembangan Geologi. Bandung

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