Extraction of tectonic imprints using geospatial techniques: Evidence from Mandakini River basin, Uttarakhand, India.
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| Title: | Extraction of tectonic imprints using geospatial techniques: Evidence from Mandakini River basin, Uttarakhand, India. |
|---|---|
| Authors: | Patidar, Atul Kumar1 (AUTHOR) atulpatidar@gmail.com, Kothyari, Girish Ch.1 (AUTHOR) girishkothyari@gmail.com, Kaushik, Manmohan1 (AUTHOR), Khanduri, Sushil2 (AUTHOR) |
| Source: | Journal of Mountain Science. Nov2024, Vol. 21 Issue 11, p3720-3738. 19p. |
| Subject Terms: | *Watersheds, *Morphotectonics, *Stream function, *Petrology, *Topography |
| Geographic Terms: | Himalaya Mountains |
| Abstract: | The existing literature discussed only the aerial aspect and provided a brief description of tectonic-geomorphic correlation with field evidence. In present study we applied power law equations to estimate basin asymmetry factor (AF), Transverse topographic asymmetric factor (T), Hypsometric Integral (HI), longitudinal profile, stream length gradient index (SL), steepness index (Ksn), Chi (χ) and knick point (Kp) analysis to examine the response of tectono-climatic fluctuations in the Mandakini River basin, central Uttarakhand Himalaya. To decouple the causative tectono-climatic factors, we employed geospatial and Stream Power Incision Modeling (SPIM) techniques. SPIM is a globally accepted tool to predict an equilibrium state between fluvial erosion rates and the escalating function of stream power. It is actively applied in modeling the transformation of river systems especially in rugged topographic regions. The present study covers SPIM-based morphometric assessment of the tectonically sensitive Mandakini River basin between Ramgarh Thrust (RT) and Vaikrita Thrust (VT) in the central region of Uttarakhand Himalaya. In the upper reaches of the basin, U-shaped glaciated valleys dominate the landscape, while a rolling topography and deeply incised narrow valleys are depicted towards the downstream. Therefore, to understand the response of active tectonic over geomorphology, the drainage basin has been divided into two separate zones from the confluence point near the Rampur area. The modeling outcomes indicate that the Mandakini drainage basin is in a disequilibrium state where channels are actively incising to bedrock. Overall, AF of 32 and 70 indicate leftward tilting in the upper reaches and rightward tilting in the lower reaches of the basin, respectively. The HI value of 0.38 indicates a stage of maturity, characterized by a concave shape profile. Based on the analysis it may be concluded that the fragile lithology and tectono-climatic fluctuations are dominantly controlling the topography and valley floor morphology of the Mandakini River. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 180988664 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Extraction of tectonic imprints using geospatial techniques: Evidence from Mandakini River basin, Uttarakhand, India. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Patidar%2C+Atul+Kumar%22">Patidar, Atul Kumar</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> atulpatidar@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Kothyari%2C+Girish+Ch%2E%22">Kothyari, Girish Ch.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> girishkothyari@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Kaushik%2C+Manmohan%22">Kaushik, Manmohan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Khanduri%2C+Sushil%22">Khanduri, Sushil</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Mountain+Science%22">Journal of Mountain Science</searchLink>. Nov2024, Vol. 21 Issue 11, p3720-3738. 19p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Watersheds%22">Watersheds</searchLink><br />*<searchLink fieldCode="DE" term="%22Morphotectonics%22">Morphotectonics</searchLink><br />*<searchLink fieldCode="DE" term="%22Stream+function%22">Stream function</searchLink><br />*<searchLink fieldCode="DE" term="%22Petrology%22">Petrology</searchLink><br />*<searchLink fieldCode="DE" term="%22Topography%22">Topography</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Himalaya+Mountains%22">Himalaya Mountains</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The existing literature discussed only the aerial aspect and provided a brief description of tectonic-geomorphic correlation with field evidence. In present study we applied power law equations to estimate basin asymmetry factor (AF), Transverse topographic asymmetric factor (T), Hypsometric Integral (HI), longitudinal profile, stream length gradient index (SL), steepness index (Ksn), Chi (χ) and knick point (Kp) analysis to examine the response of tectono-climatic fluctuations in the Mandakini River basin, central Uttarakhand Himalaya. To decouple the causative tectono-climatic factors, we employed geospatial and Stream Power Incision Modeling (SPIM) techniques. SPIM is a globally accepted tool to predict an equilibrium state between fluvial erosion rates and the escalating function of stream power. It is actively applied in modeling the transformation of river systems especially in rugged topographic regions. The present study covers SPIM-based morphometric assessment of the tectonically sensitive Mandakini River basin between Ramgarh Thrust (RT) and Vaikrita Thrust (VT) in the central region of Uttarakhand Himalaya. In the upper reaches of the basin, U-shaped glaciated valleys dominate the landscape, while a rolling topography and deeply incised narrow valleys are depicted towards the downstream. Therefore, to understand the response of active tectonic over geomorphology, the drainage basin has been divided into two separate zones from the confluence point near the Rampur area. The modeling outcomes indicate that the Mandakini drainage basin is in a disequilibrium state where channels are actively incising to bedrock. Overall, AF of 32 and 70 indicate leftward tilting in the upper reaches and rightward tilting in the lower reaches of the basin, respectively. The HI value of 0.38 indicates a stage of maturity, characterized by a concave shape profile. Based on the analysis it may be concluded that the fragile lithology and tectono-climatic fluctuations are dominantly controlling the topography and valley floor morphology of the Mandakini River. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11629-023-8339-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 3720 Subjects: – SubjectFull: Watersheds Type: general – SubjectFull: Morphotectonics Type: general – SubjectFull: Stream function Type: general – SubjectFull: Petrology Type: general – SubjectFull: Topography Type: general – SubjectFull: Himalaya Mountains Type: general Titles: – TitleFull: Extraction of tectonic imprints using geospatial techniques: Evidence from Mandakini River basin, Uttarakhand, India. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Patidar, Atul Kumar – PersonEntity: Name: NameFull: Kothyari, Girish Ch. – PersonEntity: Name: NameFull: Kaushik, Manmohan – PersonEntity: Name: NameFull: Khanduri, Sushil IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 16726316 Numbering: – Type: volume Value: 21 – Type: issue Value: 11 Titles: – TitleFull: Journal of Mountain Science Type: main |
| ResultId | 1 |
