Late Quaternary glacial history of the Panchachuli Glacier, Darma valley, Uttarakhand, Central Himalaya: Insights from geomorphic mapping and OSL Chronology.
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| Title: | Late Quaternary glacial history of the Panchachuli Glacier, Darma valley, Uttarakhand, Central Himalaya: Insights from geomorphic mapping and OSL Chronology. |
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| Authors: | Bisht, Pinkey1 (AUTHOR) p01bisht@gmail.com, Ali, S. Nawaz2 (AUTHOR) |
| Source: | Geomorphology. Dec2025, Vol. 490, pN.PAG-N.PAG. 1p. |
| Subjects: | Glaciation, Glaciers, Climate change, Holocene Epoch, Terrain mapping, Optically stimulated luminescence dating, Valleys, Ice formation & growth |
| Geographic Terms: | Himalaya Mountains, Uttarakhand (India) |
| Abstract: | This study reconstructs the late Quaternary glacial history of the Panchachuli (Neola) glacier, Darma Valley in the Central Himalayan region. Detailed geomorphic mapping and Optical Stimulated Luminescence (OSL) dating of the moraines and associated outwash terraces was carried out to determine the timing of glacial advances and subsequent retreat. Three major glacier advances were identified. The oldest, Panchachuli glacier advance (PGA)-1, is tentatively correlated with Marine Isotope stage (mid MIS 3). PGA-2, dated to ∼19.82 ± 2.41 and 20.97 ± 2.36 ka, coincides with the global Last Glacial Maximum (gLGM; MIS 2). PGA-3, dated to ∼5.16 ± 0.46 and 8.72 ± 1.02 ka, aligns with the early to mid-Holocene (mid-MIS 1). To constrain the deglaciation history, OSL dating was applied to fluvial terrace deposits, revealing distinct phases of glacier retreat. The oldest fluvial sediments date (∼31.61 ± 3.61 ka) suggest deglaciation during the late MIS 3, a period marked by elevated solar insolation and enhanced monsoon activity. Subsequent deglaciation phases (∼14–16 ka) correspond with the Bølling-Allerød warming, while the later phase (∼2.6–2.9 ka) reflects glacier recession during the late Holocene glacier recession. The glaciation pattern in the Central Himalayas underscores the combined influence of temperature and precipitation on glacier behavior. These glacier changes align with regional Himalayan patterns, reflecting a coherent response to climatic fluctuations. While advances during mid-MIS 3 and gLGM suggest synchrony with North Atlantic climate events, the early Holocene advances—despite regional warming, mirror MIS 3 trends, highlighting the complex and non-linear interplay between temperature, moisture and glacier dynamics. • Stratigraphically constrained OSL ages suggesting maximum extension of glacier during MIS 3. • The oldest fluvial sediments date to ∼31.61±3.61 ka, indicating deglaciation during the late MIS 3, a period characterized by increased solar insolation and a corresponding enhanced monsoon. • The Glacier advances during the mid MIS and LGM suggests that glaciers responded in synchrony with North Atlantic climate changes. • The early to mid-Holocene glacier expansion, despite warming, mirrors similar events of mid MIS 3, highlighting the complex role of temperature and moisture in glacier advances. [ABSTRACT FROM AUTHOR] |
| Copyright of Geomorphology 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: 188446083 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Late Quaternary glacial history of the Panchachuli Glacier, Darma valley, Uttarakhand, Central Himalaya: Insights from geomorphic mapping and OSL Chronology. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bisht%2C+Pinkey%22">Bisht, Pinkey</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> p01bisht@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Ali%2C+S%2E+Nawaz%22">Ali, S. Nawaz</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Geomorphology%22">Geomorphology</searchLink>. Dec2025, Vol. 490, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Glaciation%22">Glaciation</searchLink><br /><searchLink fieldCode="DE" term="%22Glaciers%22">Glaciers</searchLink><br /><searchLink fieldCode="DE" term="%22Climate+change%22">Climate change</searchLink><br /><searchLink fieldCode="DE" term="%22Holocene+Epoch%22">Holocene Epoch</searchLink><br /><searchLink fieldCode="DE" term="%22Terrain+mapping%22">Terrain mapping</searchLink><br /><searchLink fieldCode="DE" term="%22Optically+stimulated+luminescence+dating%22">Optically stimulated luminescence dating</searchLink><br /><searchLink fieldCode="DE" term="%22Valleys%22">Valleys</searchLink><br /><searchLink fieldCode="DE" term="%22Ice+formation+%26+growth%22">Ice formation & growth</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Himalaya+Mountains%22">Himalaya Mountains</searchLink><br /><searchLink fieldCode="DE" term="%22Uttarakhand+%28India%29%22">Uttarakhand (India)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study reconstructs the late Quaternary glacial history of the Panchachuli (Neola) glacier, Darma Valley in the Central Himalayan region. Detailed geomorphic mapping and Optical Stimulated Luminescence (OSL) dating of the moraines and associated outwash terraces was carried out to determine the timing of glacial advances and subsequent retreat. Three major glacier advances were identified. The oldest, Panchachuli glacier advance (PGA)-1, is tentatively correlated with Marine Isotope stage (mid MIS 3). PGA-2, dated to ∼19.82 ± 2.41 and 20.97 ± 2.36 ka, coincides with the global Last Glacial Maximum (gLGM; MIS 2). PGA-3, dated to ∼5.16 ± 0.46 and 8.72 ± 1.02 ka, aligns with the early to mid-Holocene (mid-MIS 1). To constrain the deglaciation history, OSL dating was applied to fluvial terrace deposits, revealing distinct phases of glacier retreat. The oldest fluvial sediments date (∼31.61 ± 3.61 ka) suggest deglaciation during the late MIS 3, a period marked by elevated solar insolation and enhanced monsoon activity. Subsequent deglaciation phases (∼14–16 ka) correspond with the Bølling-Allerød warming, while the later phase (∼2.6–2.9 ka) reflects glacier recession during the late Holocene glacier recession. The glaciation pattern in the Central Himalayas underscores the combined influence of temperature and precipitation on glacier behavior. These glacier changes align with regional Himalayan patterns, reflecting a coherent response to climatic fluctuations. While advances during mid-MIS 3 and gLGM suggest synchrony with North Atlantic climate events, the early Holocene advances—despite regional warming, mirror MIS 3 trends, highlighting the complex and non-linear interplay between temperature, moisture and glacier dynamics. • Stratigraphically constrained OSL ages suggesting maximum extension of glacier during MIS 3. • The oldest fluvial sediments date to ∼31.61±3.61 ka, indicating deglaciation during the late MIS 3, a period characterized by increased solar insolation and a corresponding enhanced monsoon. • The Glacier advances during the mid MIS and LGM suggests that glaciers responded in synchrony with North Atlantic climate changes. • The early to mid-Holocene glacier expansion, despite warming, mirrors similar events of mid MIS 3, highlighting the complex role of temperature and moisture in glacier advances. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Geomorphology 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.geomorph.2025.110011 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Glaciation Type: general – SubjectFull: Glaciers Type: general – SubjectFull: Climate change Type: general – SubjectFull: Holocene Epoch Type: general – SubjectFull: Terrain mapping Type: general – SubjectFull: Optically stimulated luminescence dating Type: general – SubjectFull: Valleys Type: general – SubjectFull: Ice formation & growth Type: general – SubjectFull: Himalaya Mountains Type: general – SubjectFull: Uttarakhand (India) Type: general Titles: – TitleFull: Late Quaternary glacial history of the Panchachuli Glacier, Darma valley, Uttarakhand, Central Himalaya: Insights from geomorphic mapping and OSL Chronology. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bisht, Pinkey – PersonEntity: Name: NameFull: Ali, S. Nawaz IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 0169555X Numbering: – Type: volume Value: 490 Titles: – TitleFull: Geomorphology Type: main |
| ResultId | 1 |
