Pemodelan Stratigrafi Bukit Sendang Mulyo dengan Konfigurasi Wenner dan Schlumberger

Ricardo , Budi Freddy (2001) Pemodelan Stratigrafi Bukit Sendang Mulyo dengan Konfigurasi Wenner dan Schlumberger. Undergraduate thesis, FMIPA UNDIP.

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Abstract

Penyelidikan geolistrik tahanan jenis telah dilakukan di bukit Sendang Mulyo. Konfigurasi yang diterapkan adalah konfigurasi Wenner dan konfigurasi Sehlumberger agar dapat diselidiki jangkauan k.edalaman pengukuran dan lapisan dari basil masing-masing aplikasi k.edua konfigurasi elektroda tersebut. Koill:gurasi Wenner diterapkan dengan bentangan spasi elektroda dari 3 m, 6 m, 9 m, dengan kelipatan 3 m hingga 30 m dan total garis bentangan berjarak 99 m. konfigurasi tersebut dihasilkan 165 titik data. Konfigurasi Sehlumberger diterapkan pada tiga titik sounding berlokasi ditengah-tengah bentangan konfigurasi Wenner dengan jarak AB/2 maksimal sejauh 50 rft Berdasarkan basil pengolahan melalui program RES2DINV ditunjukkan bahwa konfigurasi Wenner yang diterapkan menghasilkan jangkauan kedalaman 14.4 M., sernentara konfigurasi Sehlumberger yang menggunakan Matching curve mampu menjangkau hingga k.edalaman 13.305 m. Lapisan formasi batuan yang ditunjukkan oleh konfigurasi Wenner adalah terdiri atas: tanah lempung dengan resistivitas 12.8 am sampai tanah kering berpasir yang resistivitasnya 215 am sedangkan konfigurasi Schlumberger terdiri atas: tanah lempung dengan resistivitas 16.5-19 nrt. sampai tanah lempung berpasir yang resistivitasnya 51-98 am dari kedua konfigurasi tersebut, yang paling mendekati struktur sayatan stratigrafi bukit Sendang Mulyo adalah konfigurasi Wenner. The investigation of Geoelectrical resistivity has been done at Sendang Mulyo. The configurations that were applied are Wenner and Schlumberger configuration in order to investigate the extent of depth measurement and soil layers from each result of both configurations. The Wenner configuration was applied with electrode spacing varying from 3 m, 6 m, 9 m up to 30 m, for the multiplicity of three, and the distance of spread line was 99 rn. This configuration obtained 165 datum points. The Schlumberger configuration was applied only at three sounding points that located in the middle of Wenner configuration line with maximum AJ3/2 distance of 50 m. Based on the data processing by 1?pl2DINV program, it was showed that the Wenner configuration yielded the depth extent of 14.4 m, while Schlumberger configuration which was resulted by Matching Curve can reach the depth of 13.305 m. The rock formation layers which showed by Wenner configuration were clay soil with resistivity of 12.8 fIm until dry sandy soil with resistively of 215 nm and Schlumberger configuration yielded clay soil with resistivity of 16.5-19 Om until sandy clay soil with resistivity of 51-98 Sim from both of configurations which is most resembled to the stratigraphic section structure is Wenner configuration.

Item Type:Thesis (Undergraduate)
Subjects:Q Science > QC Physics
Divisions:Faculty of Science and Mathematics > Department of Physics
ID Code:30525
Deposited By:Mr UPT Perpus 1
Deposited On:01 Nov 2011 14:25
Last Modified:01 Nov 2011 14:25

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