Magnetic Source of Kawah Ijen and Subsurface Magnetic Source of Kawah Ijen and Subsurface Delineation from Magnetic Data

Yasa Suparman and Hendra Gunawan and Kristianto (2014) Magnetic Source of Kawah Ijen and Subsurface Magnetic Source of Kawah Ijen and Subsurface Delineation from Magnetic Data. In: Bunga Rampai Makalah Workshop : Riset Medan Magnet Bumi dan Aplikasinya Tahun 2014. C.V. Indira, Bandung, pp. 73-87. ISBN 978-979-1458-85-6

[img]
Preview
Text
Bunga Rampai_Yasa Suparman_Pussainsa_2014.pdf

Download (1MB) | Preview

Abstract

A ground magnetic survey was conducted at Ijen caldera complex. The Ijen caldera complex hosts a large number of volcanic edifices which consists of twelve cinder cones. The youngest of these cinder cones is Kawah Ijen volcano. Magnetic survey is used to delineate the subsurface structures and to estimate the magnetic sources depth of the selected area. Edge enhancement using total horizontal derivative is mainly used to delineate the subsurface structures while the 3D Euler deconvolution is used not only to delineate major subsurface structures but also to determine the structural indices of them as well as the depth of the magnetic sources. The calculated structural indices show that the area is mainly affected by source which interpreted to be related to fault and contact/ thin sheet. Estimated source location shows that source beneath Kawah Ijen are connected to Jampit, Rantih and Merapi as rim volcanoes. Edge enhancement using total horizontal derivative represent the delineation of subsurface structure trending southwest - northeast, coincide with the fault orientation of survey area based on geological map.

Item Type: Book Section
Uncontrolled Keywords: Ijen, Ijen crater, Kawah Ijen, Ijen magnetic, Ijen sources; Ijen fault.
Subjects: Sains Antariksa dan Atmosfer > Penelitian, Pengembangan, dan Perekayasaan > Sains Antariksa > Magnetosfer dan Lingkungan Antariksa
Divisions: Deputi Sains Antariksa Dan Atmosfer > Pusat Sains Antariksa
Depositing User: Sulisnaeni
Date Deposited: 23 Jun 2021 08:35
Last Modified: 27 Jun 2021 07:37
URI: http://repositori.lapan.go.id/id/eprint/855

Actions (login required)

View Item View Item