Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault
This study describes geomorphic expressions and constructs the schematic evolution of the Northern Sumatran Fault based on the development of transverse drainage basins and streams. This fault is a 400-km NW-SE right-lateral strike-slip fault with three segments, namely the Aceh and Seulimeum Faults...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Journal of Asian Earth Sciences: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590056023000324 |
| _version_ | 1797394830096072704 |
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| author | Aldo Febriansyah Putra Piyaphong Chenrai |
| author_facet | Aldo Febriansyah Putra Piyaphong Chenrai |
| author_sort | Aldo Febriansyah Putra |
| collection | DOAJ |
| description | This study describes geomorphic expressions and constructs the schematic evolution of the Northern Sumatran Fault based on the development of transverse drainage basins and streams. This fault is a 400-km NW-SE right-lateral strike-slip fault with three segments, namely the Aceh and Seulimeum Faults in the northern section and the Tripa Fault in the southern section. The two faults at the northern section are sub-parallel and they link at the southeast termination of the latter fault. The examination on the geomorphic expressions comprised the fault configuration, stream deflections, and the delineation of landforms based on their genesis and geometry. This study applied drainage basin relief ratio (Rh), drainage basin volume-to-area ratio (Rva), and transverse stream profile analysis (normalized stream profile, qualitative interpretation of the profile shapes, stream concavity index (SCI), stream gradient, and knickpoint distribution) for investigating the development of transverse drainage basins and streams. For constructing the schematic evolution, this study evaluates drainage maturity level from the applied methods to interpret relative timing of basin formation. This study suggests that the Aceh and Tripa Faults constituted the initial configuration and they propagated to the southeast and northwest, respectively, before merging. The Seulimeum Fault, which formed subsequently, propagated to the northwest after merging with the Aceh Fault at its southeast termination. This study also infers that fault section with lower drainage maturity coincides with greater numbers of earthquakes. |
| first_indexed | 2024-03-09T00:25:29Z |
| format | Article |
| id | doaj.art-8a828569bdd648cf87f0ba2bc3ebf7c8 |
| institution | Directory Open Access Journal |
| issn | 2590-0560 |
| language | English |
| last_indexed | 2024-03-09T00:25:29Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Asian Earth Sciences: X |
| spelling | doaj.art-8a828569bdd648cf87f0ba2bc3ebf7c82023-12-12T04:35:37ZengElsevierJournal of Asian Earth Sciences: X2590-05602023-12-0110100167Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran faultAldo Febriansyah Putra0Piyaphong Chenrai1Basin Analysis and Structural Evolution Research Unit (BASE RU), Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok 10330, ThailandBasin Analysis and Structural Evolution Research Unit (BASE RU), Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; M. Sc. Program in Energy Geoscience, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Corresponding author at: M. Sc. Program in Energy Geoscience, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.This study describes geomorphic expressions and constructs the schematic evolution of the Northern Sumatran Fault based on the development of transverse drainage basins and streams. This fault is a 400-km NW-SE right-lateral strike-slip fault with three segments, namely the Aceh and Seulimeum Faults in the northern section and the Tripa Fault in the southern section. The two faults at the northern section are sub-parallel and they link at the southeast termination of the latter fault. The examination on the geomorphic expressions comprised the fault configuration, stream deflections, and the delineation of landforms based on their genesis and geometry. This study applied drainage basin relief ratio (Rh), drainage basin volume-to-area ratio (Rva), and transverse stream profile analysis (normalized stream profile, qualitative interpretation of the profile shapes, stream concavity index (SCI), stream gradient, and knickpoint distribution) for investigating the development of transverse drainage basins and streams. For constructing the schematic evolution, this study evaluates drainage maturity level from the applied methods to interpret relative timing of basin formation. This study suggests that the Aceh and Tripa Faults constituted the initial configuration and they propagated to the southeast and northwest, respectively, before merging. The Seulimeum Fault, which formed subsequently, propagated to the northwest after merging with the Aceh Fault at its southeast termination. This study also infers that fault section with lower drainage maturity coincides with greater numbers of earthquakes.http://www.sciencedirect.com/science/article/pii/S2590056023000324Northern Sumatran FaultGeomorphic interpretationStrike-slip basinEarthquake |
| spellingShingle | Aldo Febriansyah Putra Piyaphong Chenrai Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault Journal of Asian Earth Sciences: X Northern Sumatran Fault Geomorphic interpretation Strike-slip basin Earthquake |
| title | Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault |
| title_full | Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault |
| title_fullStr | Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault |
| title_full_unstemmed | Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault |
| title_short | Geomorphic interpretation on the formation of strike-slip basins along the Northern Sumatran fault |
| title_sort | geomorphic interpretation on the formation of strike slip basins along the northern sumatran fault |
| topic | Northern Sumatran Fault Geomorphic interpretation Strike-slip basin Earthquake |
| url | http://www.sciencedirect.com/science/article/pii/S2590056023000324 |
| work_keys_str_mv | AT aldofebriansyahputra geomorphicinterpretationontheformationofstrikeslipbasinsalongthenorthernsumatranfault AT piyaphongchenrai geomorphicinterpretationontheformationofstrikeslipbasinsalongthenorthernsumatranfault |