Pemodelan Inversi 3D Daerah Panas Bumi Berbasis Data Anomali Magnetik di Kota Agung dan Sekitarnya, Provinsi Lampung

Authors

  • Sepbriyan Rizky Saputra Program Studi Geofisika Fakultas MIPA Universitas Tanjungpura
  • Yoga Satria Putra
  • Aji Suteja
  • Muhardi Muhardi

DOI:

https://doi.org/10.26418/pf.v8i1.40207

Abstract

Penelitian tentang pemodelan 3 Dimensi berbasis data anomali magnetik untuk mengetahui struktur bawah permukaan telah dilakukan di Kabupaten Tanggamus dan Kabupaten Lampung Barat. Data yang digunakan adalah data sekunder yang diambil dengan cara mendigitasi peta anomali magnet total. Pemisahan anomali regional, analisis turunan mendatar pertama (First Horizontal Derivative), dan pemodelan inversi 3D telah dilakukan untuk mencapai tujuan dari penelitian ini. Hasil penelitian menunjukkan bahwa daerah penelitian memiliki potensi panas bumi yang cukup besar di sekitar Kota Agung dan Gunung Sermaun dengan Sebaran nilai anomali magnetik dari -362,7 nT hingga 602,4 nT. Hasil analisis turunan mendatar pertama menunjukkan adanya beberapa patahan yang diduga sebagai jalur bagi fluida panas untuk mengalir ke permukaan. Hasil pemodelan inversi 3D menunjukkan struktur lapisan bawah permukaan Kota Agung bahwa reservoir panas bumi terdapat pada kedalaman 3000 meter, berupa batu pasir, batu lempung, batu lanau, dan batuan yang mengandung mineral non magnetik dengan rentang nilai -0,005 SI hingga -0,002 SI.

References

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Published

2020-04-02

Issue

Vol. 8 No. 1 (2020)

Section

Articles

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Date: 24-05-2023

Prisma Fisika
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