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Subsurface Interpretation of the Panjang Fault Area, Lampung, Based on Geomagnetic Method

JURNAL GEOCELEBES · Vol. 8 No. 1 (2024) · pp. 37–50

DOI
10.20956/geocelebes.v8i1.28303
ISSN
2579-5546, 2579-5821
Published
2024-04-01
Publisher
Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar
Language
en

Abstract

Research on the area along the Panjang Fault - Lampung, the area from the Teluk Betung to Tanjung Karang Barat area using the 19-T GSM PPM tool with base rover acquisition on 2 tracks 2 kilometers apart obtained 40 acquisition points with a spacing of 0.3 kilometers. This study aims to determine the type of lithology and subsurface rock structure by utilizing the susceptibility value of rocks from magnetic anomalies. In the process of processing magnetic anomaly data, upward continuation is carried out as high as 350 m which is intended to reduce the total anomaly with the upward anomaly results so that a residual anomaly is obtained. Next, make a 2D subsurface model on the incision A - B in the residual anomaly map. Based on the results of qualitative interpretation, the total magnetic anomaly of the research area illustrates positive to negative anomaly values with a tighter contour pattern that indicates the presence of a fault structure. While based on quantitative interpretation, the 2D modeling in incision A - B shows a susceptibility value of 0.100 cgs which can be identified as breccia tuff rock, a susceptibility value of 0.0391 cgs is thought to be rhyolitic tuff rock, pumice tuff rock, and sandstone tuff, and a susceptibility value of 0.150 cgs is a rock from the intrusion of Mount Betung in the form of andesite-basalt lava. In addition, rocks with a susceptibility value of 0.0024 cgs are metamorphic rocks. The correlation between 2D modeling and regional geology is seen in the research area, which is in the Tarahan Formation (Tpot), which is suspected to be a fault structure in the Bumi Waras area with a strike direction of NW - SE which is the course of geothermal manifestations or minerals.

Keywords

Collaboration network of the authors

27 authors · 60 co-authorship links · 4 across different organisations

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Sunan Kalijaga State Islamic University Yogyakarta
  • Universitas Islam Negeri Alauddin Makassar
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Nawir HKUniversitas Islam Negeri Alauddin Makassar1
Aan ParhaniUniversitas Islam Negeri Alauddin Makassar1
Muhammad Alwi HSSunan Kalijaga State Islamic University Yogyakarta1
Vera PratiwiAffiliation unknown1
Dody PriosambodoAffiliation unknown1
Slamet SantosaAffiliation unknown1
Eddy SoekendarsiAffiliation unknown1
Munif Said HasanAffiliation unknown1
Abdul WahabAffiliation unknown1
Nur HaedarAffiliation unknown1
As'adi AbdullahAffiliation unknown1
Rifaat RifaatAffiliation unknown1
Muhammad NurulAffiliation unknown1
Ida Bagus Suananda YogiAffiliation unknown1
Aprillia YulianataAffiliation unknown1
Aisah YuliantinaAffiliation unknown1
Ilham DaniAffiliation unknown1
Ambrosius Hernawan WibisonoAffiliation unknown1
Restu Wildanu AhadiAffiliation unknown1
Sultan Al GhifariAffiliation unknown1
Emir Dzakwan Kamal ZeinAffiliation unknown1
Egie WijaksonoAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/geocelebes/oai, first harvested 3 Nov 2026, last seen 3 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">Subsurface Interpretation of the Panjang Fault Area, Lampung, Based on Geomagnetic Method</dc:title>
	<dc:creator xml:lang="en">Rasimeng, Syamsurijal</dc:creator>
	<dc:creator xml:lang="en">Fahruddin, Fahruddin</dc:creator>
	<dc:creator xml:lang="en">Valentin, Ferdio</dc:creator>
	<dc:creator xml:lang="en">Aurora, Theressia Githa</dc:creator>
	<dc:creator xml:lang="en">Nurlaili, Jesica</dc:creator>
	<dc:subject xml:lang="en">local magnetic anomaly</dc:subject>
	<dc:subject xml:lang="en">magnetic susceptibility</dc:subject>
	<dc:subject xml:lang="en">Panjang Fault</dc:subject>
	<dc:description xml:lang="en">Research on the area along the Panjang Fault - Lampung, the area from the Teluk Betung to Tanjung Karang Barat area using the 19-T GSM PPM tool with base rover acquisition on 2 tracks 2 kilometers apart obtained 40 acquisition points with a spacing of 0.3 kilometers. This study aims to determine the type of lithology and subsurface rock structure by utilizing the susceptibility value of rocks from magnetic anomalies. In the process of processing magnetic anomaly data, upward continuation is carried out as high as 350 m which is intended to reduce the total anomaly with the upward anomaly results so that a residual anomaly is obtained. Next, make a 2D subsurface model on the incision A - B in the residual anomaly map. Based on the results of qualitative interpretation, the total magnetic anomaly of the research area illustrates positive to negative anomaly values with a tighter contour pattern that indicates the presence of a fault structure. While based on quantitative interpretation, the 2D modeling in incision A - B shows a susceptibility value of 0.100 cgs which can be identified as breccia tuff rock, a susceptibility value of 0.0391 cgs is thought to be rhyolitic tuff rock, pumice tuff rock, and sandstone tuff, and a susceptibility value of 0.150 cgs is a rock from the intrusion of Mount Betung in the form of andesite-basalt lava. In addition, rocks with a susceptibility value of 0.0024 cgs are metamorphic rocks. The correlation between 2D modeling and regional geology is seen in the research area, which is in the Tarahan Formation (Tpot), which is suspected to be a fault structure in the Bumi Waras area with a strike direction of NW - SE which is the course of geothermal manifestations or minerals.</dc:description>
	<dc:publisher xml:lang="en">Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar</dc:publisher>
	<dc:date>2024-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unhas.ac.id/index.php/geocelebes/article/view/28303</dc:identifier>
	<dc:identifier>10.20956/geocelebes.v8i1.28303</dc:identifier>
	<dc:source xml:lang="en">JURNAL GEOCELEBES; Vol. 8 No. 1: April 2024; 37 – 50</dc:source>
	<dc:source>2579-5546</dc:source>
	<dc:source>2579-5821</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/geocelebes/article/view/28303/11376</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2024 JURNAL GEOCELEBES</dc:rights>
</oai_dc:dc>