@misc{eprints56611,
           month = {Nopember},
           title = {IDENTIFIKASI PERSEBARAN LAPISAN BATUAN ANDESIT
MENGGUNAK AN METODE GEOLISTRIK TAHANAN JENIS DAN
RESISTIVITY LOG PADA DESA MALINGPING UTARA, KECAMATAN
MALINGPING UTARA, KABUPATEN LEBAK},
          author = {1515051052 AL IMRON},
         address = {Universitas Lampung},
       publisher = {Fakultas Teknik},
            year = {2019},
             url = {http://digilib.unila.ac.id/56611/},
        abstract = {The research area is located in North Malingping Village, North Malingping
District, Lebak Regency. The research area is an andesite excavated area that is
already in oduction and is being carried out with additional exploration. Data in
the study area include 5 points of 1D geoelectric measurement Wenner
configuration, 3 paths of geoelectric measurement of Pole-Dipole configuration,
and well data. This study aims at (1) Interpreting rock layers based on the value of
variation of Geoelectric resistances and Well Logging, (2) Determining the area of
distribution and thickness of andesite rock layers, (3) determining reserves based
on 3D models and calculation of Inferred reserves. Based on geoelectric
measurements and resistivity log the study area has the lithology of sandy clay,
sandstones, andesite rocks, tuff breccia, volcanic breccia, and overburden. The
results of 3D geoelectric modeling and correlation from resistivity log data are
assumed that the layer of andesite is found at a depth of 5 - 20 m with a range of
resistivity values between 800 - 2000 danm and has a thickness of 15 m. For the
area of the study amounting to 146,584 m2, the calculation of reserves using the
probable reserve method with a confidence level (20-30)\% has an estimated
reserve of about 1,292,251.25 tons while the calculation using voxler 4 software is
965,902 tons.
Keywords : Geoelectric, Resistivity Log, Andesite, Wenner, Pole-Dipole


Telah dilakukan penelitian prospek batuan andesit di Desa Malingping Utara,
Kecamatan Malingping Utara, Kabupaten Lebak. Daerah penelitian merupakan
daerah bahan galian andesit yang sudah berproduksi dan sedang dilakukan
ekspolarasi tambahan. Data pada daerah penelitian meliputi 5 Titik pengukuran
geolistrik 1D konfigurasi Wenner, 3 lintasan pengukuran geolistrik 2D
konfigurasi Pole-Dipole, dan data sumur. Penelitian ini bertujuan
Menginterpretasikan lapisan batuan berdasarkan nilai variasi tahanan jenis
Geolistrik dan Well Logging, Menentukan daerah persebaran dan ketebalan
lapisan batuan andesit, menentukan cadangan berdasarkan metode perhitungan
cadangan Tereka. Berdasarkan hasil interpretasi dari hasil pengolahan data
geolistrik 1D, 2D, dan resistivity log, daerah penelitian memiliki litologi tanah
penutup, batuan andesit, pasir lempungan, dan lempung pasiran. Berdasarkan
hasil pemodelan 3D dan nilai resitivitas sebaran lapisan batuan yang diduga
andesit tersebar dibeberapa titik, tapi dominan pada arah barat dan timur daerah
penelitian. Hasil pemodelan 2D geolistrik dan korelasi dari data resistivity log
diasumsikan bahwa lapisan batuan andesit terdapat pada kedalaman 2 ? 23 m
dengan kisaran nilai resistivitas antara 200 - 7188 ?m dan memiliki ketebalan 21
m. Luas daerah penelitian sebesar 146.584 m2 dilakukan perhitungan cadangan
menggunakan metode cadangan tereka (probable reserve) dengan tingkat
keyakinan (20-30)\% memiliki estimasi cadangan sekitar 373.163 m3.
Kata kunci : Geolistrik, resistivity log, andesit, wenner, Pole-dipole.}
}