Pemodelan Pola Aliran Fluida Panas Manifestasi Hidrotermal Songgoriti, Kota Batu Menggunakan Metode Self-Potential

Anggi Arwin Pratama, Ayi Syaeful Bahri, Dwa Desa Warnana
Submission Date: 2017-07-26 08:51:14
Accepted Date: 2018-01-09 21:27:32

Abstract


Penelitian aliran fluida panas telah dilakukan di daerah manifestasi hidrotermal Songgoriti menggunakan metode pengukuran Self-Potential. Penelitian ini bertujuan untuk mendapatkan pola aliran fluida panas dan letak kedalaman anomali fluida panas di daerah Songgoriti, Kota Batu. Metode Self-Potential efektif digunakan untuk penelitian ini karena metode tersebut dapat digunakan untuk menentukan nilai potensial alami bawa permukaan, sehingga karakteristik beda potensial fluida panas bawah permukaan dapat ditentukan. Pengambilan data Self-Potential menggunakan konfigurasi leap-frog dengan jumlah titik pengukuran 100 datum. Hasil pengukuran menunjukkan karakteristik fluida panas diasumsikan sebagai anomali tinggi sekitar 60 sampai 85 mV. Hal itu dikarenakan fluida panas berasosiasi dengan batuan teralterasi sehingga bersifat termal konduktif. Proses konduksi termal di daerah penelitian diindikasikan berasosiasi dengan zona alterasi hidrotermal yang menyebabkan peningkatan nilai anomali self-potential yang terdistribusi merata pada daerah tersebut dan mempengaruhi aliran lokal. Aliran fluida teridentifikasi pada kedalaman 78 hingga 150 meter dengan pola aliran mengalir dari zona manifestasi berarah ke timur dan barat.

Keywords


Fluida panas; Self-potential; Anomali; Pemodelan

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