Estimating Bedrock Depth Based on Total Magnetic Field Anomaly Data in Medan City Area in the Northern Sumatra Basin Using the Peter Half Slope Method

Rasimeng, Syamsurijal; Sianturi, Rizky J.; Surbakti, Lucky Dolinta; Kurniawan, Yoga; Dani, Ilham; Rustadi, Rustadi

doi:10.24042/jipfalbiruni.v13i1.18555

Jurnal SINTA 1

Estimating Bedrock Depth Based on Total Magnetic Field Anomaly Data in Medan City Area in the Northern Sumatra Basin Using the Peter Half Slope Method

JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI · Vol. 13 No. 1 (2024) · hlm. 45–55

DOI: 10.24042/jipfalbiruni.v13i1.18555
ISSN: 2503-023X, 2303-1832
Terbit: 2024-06-29
Penerbit: Universitas Islam Negeri Raden Intan Lampung, Indonesia
Bahasa: eng

Abstrak

The Peter Half Slope method is valuable for estimating rock depths using total magnetic field anomaly data. It relies on graphical analysis and practical rules to gauge the depths of magnetic sources. This method finds significant utility in magnetic interpretation, measuring half the maximum slope distance on magnetic anomaly curves. The primary objective of this research is to determine anomaly depths within Medan City by applying the Peter Half Slope method. The study employs total magnetic field anomaly data from the Medan city area, a part of the Northern Sumatra Basin. The research methodology includes data preparation, reduction to the pole transformation, profile creation, maximum slope computation, half-slope determination, and identifying tangent points on both minimum and maximum curves. The difference between these tangent points is then calculated to derive the depth of the bedrock. Based on the depth calculations using criteria for very thin, intermediate thickness, and very thick bodies, depths of 401, 301, and 240 meters were obtained, resulting in an average depth of 314 meters. This method plays a pivotal role in characterizing subsurface rock structures and is essential for geophysical analysis and magnetic data interpretation.

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Lampung University
Hasanuddin University
Malikussaleh University
University of Bengkulu
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Rekan penulis	Organisasi	Artikel bersama
Muhammad Nurul	Lampung University	1
Ida Bagus Suananda Yogi	Lampung University	1
Aprillia Yulianata	Lampung University	1
Aisah Yuliantina	Lampung University	1
Ilham Dani	Lampung University	1
Ambrosius Hernawan Wibisono	Lampung University	1
Restu Wildanu Ahadi	Lampung University	1
Sultan Al Ghifari	Lampung University	1
Emir Dzakwan Kamal Zein	Lampung University	1
Egie Wijaksono	Afiliasi tidak diketahui	1
Fahruddin Fahruddin	Hasanuddin University	1
Ferdio Valentin	Lampung University	1
Theressia Githa Aurora	Lampung University	1
Jesica Nurlaili	Lampung University	1
Anisa Amanda	Afiliasi tidak diketahui	1
Rizki Buana Agustian	Afiliasi tidak diketahui	1
Aksela Dian Fista	Afiliasi tidak diketahui	1
Muchammad Farid	University of Bengkulu	1
Nandi Haerudin	Lampung University	1
Deassy Siska	Malikussaleh University	1
Helmy Fitriawan	Lampung University	1

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Sumber metadata: OAI-PMH (metadata jurnal) http://ejournal.radenintan.ac.id/index.php/al-biruni/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.

Metadata asli (oai_dc)

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	<dc:title xml:lang="en">Estimating Bedrock Depth Based on Total Magnetic Field Anomaly Data in Medan City Area in the Northern Sumatra Basin Using the Peter Half Slope Method</dc:title>
	<dc:creator xml:lang="en">Rasimeng, Syamsurijal</dc:creator>
	<dc:creator xml:lang="en">Sianturi, Rizky J.</dc:creator>
	<dc:creator xml:lang="en">Surbakti, Lucky Dolinta</dc:creator>
	<dc:creator xml:lang="en">Kurniawan, Yoga</dc:creator>
	<dc:creator xml:lang="en">Dani, Ilham</dc:creator>
	<dc:creator xml:lang="en">Rustadi, Rustadi</dc:creator>
	<dc:subject xml:lang="en">Basin</dc:subject>
	<dc:subject xml:lang="en">Geomagnetic</dc:subject>
	<dc:subject xml:lang="en">Half slope</dc:subject>
	<dc:subject xml:lang="en">Inclination</dc:subject>
	<dc:subject xml:lang="en">Declination</dc:subject>
	<dc:description xml:lang="en">The Peter Half Slope method is valuable for estimating rock depths using total magnetic field anomaly data. It relies on graphical analysis and practical rules to gauge the depths of magnetic sources. This method finds significant utility in magnetic interpretation, measuring half the maximum slope distance on magnetic anomaly curves. The primary objective of this research is to determine anomaly depths within Medan City by applying the Peter Half Slope method. The study employs total magnetic field anomaly data from the Medan city area, a part of the Northern Sumatra Basin. The research methodology includes data preparation, reduction to the pole transformation, profile creation, maximum slope computation, half-slope determination, and identifying tangent points on both minimum and maximum curves. The difference between these tangent points is then calculated to derive the depth of the bedrock. Based on the depth calculations using criteria for very thin, intermediate thickness, and very thick bodies, depths of 401, 301, and 240 meters were obtained, resulting in an average depth of 314 meters. This method plays a pivotal role in characterizing subsurface rock structures and is essential for geophysical analysis and magnetic data interpretation.</dc:description>
	<dc:publisher xml:lang="en">Universitas Islam Negeri Raden Intan Lampung, Indonesia</dc:publisher>
	<dc:date>2024-06-29</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://ejournal.radenintan.ac.id/index.php/al-biruni/article/view/18555</dc:identifier>
	<dc:identifier>10.24042/jipfalbiruni.v13i1.18555</dc:identifier>
	<dc:source xml:lang="en">Jurnal Ilmiah Pendidikan Fisika Al-Biruni; Vol. 13 No. 1 (2024): Jurnal Ilmiah Pendidikan Fisika Al-Biruni; 45-55</dc:source>
	<dc:source xml:lang="id">Jurnal Ilmiah Pendidikan Fisika Al-Biruni; Vol 13 No 1 (2024): Jurnal Ilmiah Pendidikan Fisika Al-Biruni; 45-55</dc:source>
	<dc:source>2503-023X</dc:source>
	<dc:source>2303-1832</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejournal.radenintan.ac.id/index.php/al-biruni/article/view/18555/pdf</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2024 Physics Education Department, UIN Raden Intan Lampung, Indonesia</dc:rights>
</oai_dc:dc>