Sunda subduction drives ongoing India-Asia convergence.
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| Title: | Sunda subduction drives ongoing India-Asia convergence. |
|---|---|
| Authors: | Bose, Santanu1 (AUTHOR) santanu.geol@presiuniv.ac.in, Schellart, Wouter P.2 (AUTHOR), Strak, Vincent2 (AUTHOR), Duarte, João C.3 (AUTHOR), Chen, Zhihao4 (AUTHOR) |
| Source: | Tectonophysics. Feb2023, Vol. 849, pN.PAG-N.PAG. 1p. |
| Subjects: | Subduction, Subduction zones, Plate tectonics, Lithosphere, Geodynamics |
| Geographic Terms: | Himalaya Mountains, India |
| Abstract: | The Himalaya and the Tibetan plateau, the highest mountain range on Earth, have been growing continuously for the last 55 Myr since India collided with Eurasia. The forces driving this protracted mountain building process are still not fully understood. Although subduction zones are considered the main driving force for plate tectonics, mantle flow and plate boundary migration, their role in driving the Indian indentation and the northward movement of the collisional plate boundary is yet to be tested with geodynamic models. Here, we use four-dimensional geodynamic physical models to show that active subduction of the Indo-Australian plate along the Sunda subduction zone is probably the main driver of the India-Asia convergence, Indian indentation, and the consequent growth of the Himalaya-Tibet mountains, and also the present-day eastward crustal displacement of southeast Asia. Our experiments show that at least 880 km of northward indentation of India would not have ensued in the absence of the lateral subduction zones. Our experiments with lateral subduction zones show that subduction of the Indian continental lithosphere is maximum close to the eastern and western syntaxes, which ranges between 450 and 500 km. Based on our model results we propose that the protracted growth of collisional mountains on Earth, like the Himalaya, is highly dependent on nearby active subduction zones. • Buoyancy-driven 4D geodynamic models investigate the role of the slab pull force on continental subduction and indentation. • Active subduction at the Sunda trench is the principal driver of ongoing India-Asia convergence and Indian indentation. • Our models predict that lateral subduction zones lead to mountain growth like the Himalaya over tens of millions of years. [ABSTRACT FROM AUTHOR] |
| Copyright of Tectonophysics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 161816138 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Sunda subduction drives ongoing India-Asia convergence. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bose%2C+Santanu%22">Bose, Santanu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> santanu.geol@presiuniv.ac.in</i><br /><searchLink fieldCode="AR" term="%22Schellart%2C+Wouter+P%2E%22">Schellart, Wouter P.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Strak%2C+Vincent%22">Strak, Vincent</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Duarte%2C+João+C%2E%22">Duarte, João C.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Zhihao%22">Chen, Zhihao</searchLink><relatesTo>4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Tectonophysics%22">Tectonophysics</searchLink>. Feb2023, Vol. 849, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Subduction%22">Subduction</searchLink><br /><searchLink fieldCode="DE" term="%22Subduction+zones%22">Subduction zones</searchLink><br /><searchLink fieldCode="DE" term="%22Plate+tectonics%22">Plate tectonics</searchLink><br /><searchLink fieldCode="DE" term="%22Lithosphere%22">Lithosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Geodynamics%22">Geodynamics</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Himalaya+Mountains%22">Himalaya Mountains</searchLink><br /><searchLink fieldCode="DE" term="%22India%22">India</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The Himalaya and the Tibetan plateau, the highest mountain range on Earth, have been growing continuously for the last 55 Myr since India collided with Eurasia. The forces driving this protracted mountain building process are still not fully understood. Although subduction zones are considered the main driving force for plate tectonics, mantle flow and plate boundary migration, their role in driving the Indian indentation and the northward movement of the collisional plate boundary is yet to be tested with geodynamic models. Here, we use four-dimensional geodynamic physical models to show that active subduction of the Indo-Australian plate along the Sunda subduction zone is probably the main driver of the India-Asia convergence, Indian indentation, and the consequent growth of the Himalaya-Tibet mountains, and also the present-day eastward crustal displacement of southeast Asia. Our experiments show that at least 880 km of northward indentation of India would not have ensued in the absence of the lateral subduction zones. Our experiments with lateral subduction zones show that subduction of the Indian continental lithosphere is maximum close to the eastern and western syntaxes, which ranges between 450 and 500 km. Based on our model results we propose that the protracted growth of collisional mountains on Earth, like the Himalaya, is highly dependent on nearby active subduction zones. • Buoyancy-driven 4D geodynamic models investigate the role of the slab pull force on continental subduction and indentation. • Active subduction at the Sunda trench is the principal driver of ongoing India-Asia convergence and Indian indentation. • Our models predict that lateral subduction zones lead to mountain growth like the Himalaya over tens of millions of years. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Tectonophysics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.tecto.2023.229727 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Subduction Type: general – SubjectFull: Subduction zones Type: general – SubjectFull: Plate tectonics Type: general – SubjectFull: Lithosphere Type: general – SubjectFull: Geodynamics Type: general – SubjectFull: Himalaya Mountains Type: general – SubjectFull: India Type: general Titles: – TitleFull: Sunda subduction drives ongoing India-Asia convergence. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bose, Santanu – PersonEntity: Name: NameFull: Schellart, Wouter P. – PersonEntity: Name: NameFull: Strak, Vincent – PersonEntity: Name: NameFull: Duarte, João C. – PersonEntity: Name: NameFull: Chen, Zhihao IsPartOfRelationships: – BibEntity: Dates: – D: 20 M: 02 Text: Feb2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00401951 Numbering: – Type: volume Value: 849 Titles: – TitleFull: Tectonophysics Type: main |
| ResultId | 1 |
