Efendi Rumbiak, Jackson (2015) IDENTIFIKASI KEBERADAAN BATUBARA MENGGUNAKAN METODE RESISTIVITAS, KONFIGURASI WENNER-SCHLUMBERGER DI DAERAH “X”, PROVINSI KALIMANTAN SELATAN. Other thesis, UPN ''VETERAN'' YOGYAKARTA.
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Abstract
Pengukuran menggunakan metode Resistivitas Konfigurasi Wenner-Schlumberger di
daerah “X” Provinsi Kalimantan Selatan. Bertujuan melokalisir daerah yang
diindikasikan berpotensi sebagai lapisan batubara dan mengetahui penyebaran serta
kedalamannya di bawah permukaan, berdasarkan interpretasi penampang resistivitas 2D
dan rekonstruksi model 3D. Perpindahan elektroda Metode Resistivitas Konfigurasi
Wenner-Schlumberger dapat memberikan resolusi vertical dan horisontal.
Data yang digunakan berupa data sekunder berupa nilai potensial (mV), arus listrik (mA),
hambatan listrik (Ohm), Faktor geometri (m), dan lokasi titik pengukuran geolistrik.
Lintasan yang digunakan dalam penelitian ini berjumlah 8 lintasan pengukuran dengan
arah lintasan N 90° E (Barat-Timur). Panjang rata-rata lintasan 480 meter dengan spasi
antar titik pengukuran 10 meter. Pengolahan data pada penelitian ini menggunakan
software Res2Dinv dengan output penampang model 2D dan dengan software Rockwork
14 dengan output model 3D.
Berdasarkan penampang resistivity 2D lapisan batubara memiliki range nilai resistivitas
berkisar antara 200-300 Ohm.m serta diindikasikan berasosiasi dengan litologi batupasir
dan batulempung. Kedalaman serta ketebalan lapisan batubara pada setiap lintasan
bervariasi, dengan kedalaman berkisar 40-90 meter serta ketebalan lapisan batubara
mencapai 5-15 meter. Kemenerusan lapisan batubara relatif arah Baratdaya ke Selatan.
Kata kunci : Resistivitas, batubara, konfigurasi Wenner-Schlumberger.
Measurement using Wenner-Schlumberger configuration of Resistivity Method in “X”
area, South Kalimantan Province. The aim of the research is to localize the area that
indicated as a potential coal seams and determine the spread and depth below the surface,
based on the interpretation of resistivity 2D profile and reconstruction of 3D model.
Displacement electrode of Wenner-Schlumberger configuration can provide vertical and
horizontal resolution.
The data used is secondary data, they are potential value (mV), electric current (m),
electrical resistance (Ohm), the geometry factor (m), and the location of the geoelectric
measurements. Total line that used in this study is 8 line with the line direction is N 90° E
(West-East). The average of line length is 480 meters and the measurement spacing is 10
meters. The data processing in this research is used by software res2dinv with output of
resistivity 2D profile and software rockwork 15 with out put of 3D model.
Based on the resistivity 2D profile the coal seam has a range of resistivity values ranged
between 200-300 Ohm.m and indicated associated with sandstone and claystone
lithology. The depth and thickness of coal seam at each line measurement is varies, with
depth ranging from 40-90 meters and the thickness of coal seam reaches 5-15 meters.
Continuous the coal seam direction is relative southwest to south.
Key Word: Resistivity, Coal, Wener-Schlumberger configuration.
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Geography |
| Depositing User: | Erny Azyanti |
| Date Deposited: | 20 May 2016 05:51 |
| Last Modified: | 20 May 2016 05:51 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/1930 |
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