Identifikasi Struktur Bawah Tanah di Kelurahan Pangmilang Kecamatan Singkawang Selatan Menggunakan Metode Geolistrik Resistivitas dan Inversi Lavenberg - Marquardt
DOI:
https://doi.org/10.26418/positron.v2i1.2001Keywords:
resistivitas, Schlumberger, Lavenberg-Marquardt.Abstract
Telah dilakukan penelitian untuk mengidentifikasi struktur bawah permukaan di Kelurahan Pangmilang, Kecamatan Singkawang Selatan. Metode yang digunakan adalah metode geolistrik resistivitas konfigurasi Schlumberger dikombinasikan dengan metode Inversi Lavenberg-Marquardt. Berdasarkan perhitungan geofisika dan analisa kondisi geologi, diperoleh kondisi struktur tak selaras. Batuan jenis kuarsa aneka bahan mendominasi daerah pengukuran. Pada titik pengukuran 60 m dan 100 m terdapat bongkahan granit porphyry dengan kandungan air sebesar ± 0,31%. Secara umum, jenis formasi granodiorit Mensibau ini terisi 0,47 % air dari total luas formasi.
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