The Integrated Analysis of Basement Faults in North Bangka Island, Indonesia, Using Surface Lineament Density and Gravity Anomaly Enhancement.
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| Title: | The Integrated Analysis of Basement Faults in North Bangka Island, Indonesia, Using Surface Lineament Density and Gravity Anomaly Enhancement. |
|---|---|
| Alternate Title: | Integrirana analiza rasjeda temeljnoga sloja na otoku Bangka u Indoneziji korištenjem gustoće površinskih lineamenata i pojačanja gravitacijskih anomalija. |
| Authors: | Hutami, Harnanti Yogaputri1,2 harnanti.hutami@tg.itera.ac.id, Sunardi, Edy1, Haryanto, Iyan1, Winardhi, Sonny3, Prasetyo, Nugroho2, Anas, Nur Ayu4, Fattah, Erlangga Ibrahim2 |
| Source: | Rudarsko-Geološko-Naftni Zbornik. 2026, Vol. 41 Issue 2, p213-228. 16p. |
| Subject Terms: | *Geologic faults, *Neotectonics, *Gravity anomalies, *Structural geology, *Islands |
| Geographic Terms: | Bangka Island (Indonesia), Indonesia |
| Abstract (English): | Bangka Island was formed by the subduction and collision of the Gondwana-derived Sibumasu and East Malaya blocks in the Late Paleozoic. Its northern region comprises Permian metamorphic rocks of the Pemali Complex, Triassic sedimentary units from the Tanjunggenting Formation, and Late Triassic to Early Jurassic granites of the Klabat Formation. Despite multiple tectonic phases shaping Bangka Island, the structural configuration of basement faults and folds in the northern region remains poorly constrained. This uncertainty hampers the assessment of fractured basement reservoirs in the study area. To address this gap, this study integrates surface lineament extraction from DEMNAS with gravity anomaly data from GGMplus to investigate the basement structure of the northern Bangka. Fast Sigmoid Edge Detection (FSED) and Euler Deconvolution were applied to enhance structural interpretation and estimate basement depth. The dominant structural orientations of NW-SE and NE-SW identified at the surface were consistent with the subsurface features; however, FSED and Euler Deconvolution also revealed E-W and N-S trends. Moreover, the findings from the Euler Deconvolution indicated basement depths of 3000-4000 m below sea level. Field fracture measurements from granitic outcrops validate these orientations, confirming a strong correspondence between surface and subsurface structures. These findings offer new insight into the tectonic evolution of the northern region of Bangka Island and highlight fault orientations that may aid in identifying fractured basement reservoir zones in granitic terrains. [ABSTRACT FROM AUTHOR] |
| Abstract (Croatian): | Otok Bangka nastao je subdukcijom i sudarom blokova Sibumasu i Istočna Malaja, koji su potekli iz Gondvane, u kasnome paleozoiku. Njegovu sjevernu regiju čine permske metamorfne stijene kompleksa Pemali, trijaske sedimentne jedinice formacije Tanjunggenting te graniti formacije Klabat iz kasnoga trijasa do rane jure. Unatoč višestrukim tektonskim fazama koje su oblikovale otok Bangka strukturna konfiguracija rasjeda i nabora u podlozi u sjevernoj regiji ostaje slabo razjašnjena. Ova neizvjesnost otežava procjenu ležišta u rasjednom temeljnom sloju u području istraživanja. Kako bi se popunila ova praznina, ova studija integrira ekstrakciju površinskih lineamenata iz DEMNAS-a s podatcima o gravitacijskim anomalijama iz GGMplus-a kako bi se istražila struktura rasjeda temeljnog sloja sjeverne Bangke. Brza detekcija rubova sigmoidom (FSED) i Eulerova dekonvolucija primijenjene su za poboljšanje strukturne interpretacije i procjenu dubine podloge. Dominantne strukturne orijentacije sjeverozapad-jugoistok i sjeveroistok-jugozapad identificirane na površini bile su u skladu s podzemnim značajkama, dok su FSED i Eulerova dekonvolucija također otkrile trendove istokzapad i sjever-jug. Štoviše, rezultati Eulerove dekonvolucije uputili su na dubine temeljnoga sloja od 3000 do 4000 m ispod razine mora. Mjerenja pukotina na terenu iz granitnih izdanaka potvrđuju ove orijentacije, naglašavajući snažnu podudarnost između površinskih i podzemnih struktura. Ovi nalazi pružaju nove uvide u tektonsku evoluciju sjeverne regije otoka Bangka i ističu orijentacije rasjeda koje bi mogle poslužiti kao smjernice za identifikaciju zona rasjednih ležišta u granitnim terenima. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 193611526 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The Integrated Analysis of Basement Faults in North Bangka Island, Indonesia, Using Surface Lineament Density and Gravity Anomaly Enhancement. – Name: TitleAlt Label: Alternate Title Group: TiAlt Data: Integrirana analiza rasjeda temeljnoga sloja na otoku Bangka u Indoneziji korištenjem gustoće površinskih lineamenata i pojačanja gravitacijskih anomalija. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hutami%2C+Harnanti+Yogaputri%22">Hutami, Harnanti Yogaputri</searchLink><relatesTo>1,2</relatesTo><i> harnanti.hutami@tg.itera.ac.id</i><br /><searchLink fieldCode="AR" term="%22Sunardi%2C+Edy%22">Sunardi, Edy</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Haryanto%2C+Iyan%22">Haryanto, Iyan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Winardhi%2C+Sonny%22">Winardhi, Sonny</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Prasetyo%2C+Nugroho%22">Prasetyo, Nugroho</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Anas%2C+Nur+Ayu%22">Anas, Nur Ayu</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Fattah%2C+Erlangga+Ibrahim%22">Fattah, Erlangga Ibrahim</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Rudarsko-Geološko-Naftni+Zbornik%22">Rudarsko-Geološko-Naftni Zbornik</searchLink>. 2026, Vol. 41 Issue 2, p213-228. 16p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Geologic+faults%22">Geologic faults</searchLink><br />*<searchLink fieldCode="DE" term="%22Neotectonics%22">Neotectonics</searchLink><br />*<searchLink fieldCode="DE" term="%22Gravity+anomalies%22">Gravity anomalies</searchLink><br />*<searchLink fieldCode="DE" term="%22Structural+geology%22">Structural geology</searchLink><br />*<searchLink fieldCode="DE" term="%22Islands%22">Islands</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Bangka+Island+%28Indonesia%29%22">Bangka Island (Indonesia)</searchLink><br /><searchLink fieldCode="DE" term="%22Indonesia%22">Indonesia</searchLink> – Name: Abstract Label: Abstract (English) Group: Ab Data: Bangka Island was formed by the subduction and collision of the Gondwana-derived Sibumasu and East Malaya blocks in the Late Paleozoic. Its northern region comprises Permian metamorphic rocks of the Pemali Complex, Triassic sedimentary units from the Tanjunggenting Formation, and Late Triassic to Early Jurassic granites of the Klabat Formation. Despite multiple tectonic phases shaping Bangka Island, the structural configuration of basement faults and folds in the northern region remains poorly constrained. This uncertainty hampers the assessment of fractured basement reservoirs in the study area. To address this gap, this study integrates surface lineament extraction from DEMNAS with gravity anomaly data from GGMplus to investigate the basement structure of the northern Bangka. Fast Sigmoid Edge Detection (FSED) and Euler Deconvolution were applied to enhance structural interpretation and estimate basement depth. The dominant structural orientations of NW-SE and NE-SW identified at the surface were consistent with the subsurface features; however, FSED and Euler Deconvolution also revealed E-W and N-S trends. Moreover, the findings from the Euler Deconvolution indicated basement depths of 3000-4000 m below sea level. Field fracture measurements from granitic outcrops validate these orientations, confirming a strong correspondence between surface and subsurface structures. These findings offer new insight into the tectonic evolution of the northern region of Bangka Island and highlight fault orientations that may aid in identifying fractured basement reservoir zones in granitic terrains. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Abstract (Croatian) Group: Ab Data: Otok Bangka nastao je subdukcijom i sudarom blokova Sibumasu i Istočna Malaja, koji su potekli iz Gondvane, u kasnome paleozoiku. Njegovu sjevernu regiju čine permske metamorfne stijene kompleksa Pemali, trijaske sedimentne jedinice formacije Tanjunggenting te graniti formacije Klabat iz kasnoga trijasa do rane jure. Unatoč višestrukim tektonskim fazama koje su oblikovale otok Bangka strukturna konfiguracija rasjeda i nabora u podlozi u sjevernoj regiji ostaje slabo razjašnjena. Ova neizvjesnost otežava procjenu ležišta u rasjednom temeljnom sloju u području istraživanja. Kako bi se popunila ova praznina, ova studija integrira ekstrakciju površinskih lineamenata iz DEMNAS-a s podatcima o gravitacijskim anomalijama iz GGMplus-a kako bi se istražila struktura rasjeda temeljnog sloja sjeverne Bangke. Brza detekcija rubova sigmoidom (FSED) i Eulerova dekonvolucija primijenjene su za poboljšanje strukturne interpretacije i procjenu dubine podloge. Dominantne strukturne orijentacije sjeverozapad-jugoistok i sjeveroistok-jugozapad identificirane na površini bile su u skladu s podzemnim značajkama, dok su FSED i Eulerova dekonvolucija također otkrile trendove istokzapad i sjever-jug. Štoviše, rezultati Eulerove dekonvolucije uputili su na dubine temeljnoga sloja od 3000 do 4000 m ispod razine mora. Mjerenja pukotina na terenu iz granitnih izdanaka potvrđuju ove orijentacije, naglašavajući snažnu podudarnost između površinskih i podzemnih struktura. Ovi nalazi pružaju nove uvide u tektonsku evoluciju sjeverne regije otoka Bangka i ističu orijentacije rasjeda koje bi mogle poslužiti kao smjernice za identifikaciju zona rasjednih ležišta u granitnim terenima. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.17794/rgn.2026.2.15 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 213 Subjects: – SubjectFull: Geologic faults Type: general – SubjectFull: Neotectonics Type: general – SubjectFull: Gravity anomalies Type: general – SubjectFull: Structural geology Type: general – SubjectFull: Islands Type: general – SubjectFull: Bangka Island (Indonesia) Type: general – SubjectFull: Indonesia Type: general Titles: – TitleFull: The Integrated Analysis of Basement Faults in North Bangka Island, Indonesia, Using Surface Lineament Density and Gravity Anomaly Enhancement. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hutami, Harnanti Yogaputri – PersonEntity: Name: NameFull: Sunardi, Edy – PersonEntity: Name: NameFull: Haryanto, Iyan – PersonEntity: Name: NameFull: Winardhi, Sonny – PersonEntity: Name: NameFull: Prasetyo, Nugroho – PersonEntity: Name: NameFull: Anas, Nur Ayu – PersonEntity: Name: NameFull: Fattah, Erlangga Ibrahim IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 03534529 Numbering: – Type: volume Value: 41 – Type: issue Value: 2 Titles: – TitleFull: Rudarsko-Geološko-Naftni Zbornik Type: main |
| ResultId | 1 |
