Delineasi Subcekungan Daerah Menggala dan Sekitarnya, Provinsi Lampung Berdasarkan Anomali Magnetik dan Gaya Berat

Authors

  • Rifatul Auzan Universitas Tanjungpura
  • Yudha Arman Program Studi Geofisika, Universitas Tanjungpura
  • Zulfian Zulfian Program Studi Geofisika, Universitas Tanjungpura

DOI:

https://doi.org/10.26418/positron.v10i2.42800

Keywords:

anomali magnetik, anomali gaya berat, delineasi, menggala, subcekungan

Abstract

Delineasi subcekungan daerah Menggala dan sekitarnya dilakukan berdasarkan anomali magnetik dan gravitasi. Data anomali magnetik dan anomali Bouguer yang digunakan sudah melewati proses koreksi. Subcekungan daerah Menggala diasosiasikan dengan nilai anomali magnetik dan gravitasi yang rendah. Berdasarkan hasil yang diperoleh, sebanyak 9 (sembilan) subcekungan dengan isian sedimen berupa tuff, lempung, endapan rawa dan mineral diamagnetik teridentifikasi. Setiap subcekungan dibatasi oleh batuan beku dengan kedalaman berkisar 1 km dari permukaan. Subcekungan yang diidentifikasi memiliki arah timurlaut, baratlaut dan barat-baratlaut ke timurtenggara. Batuan basement (dasar) daerah Menggala diduga berupa batuan granit yang memiliki nilai densitas dan suseptibilitas masing-masing 2,643 g/cm3 dan 0,033767 SI.

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Published

2020-12-29

Issue

Vol. 10 No. 2 (2020): Vol. 10 No. 2 Edition

Section

Articles

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