Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central Chile
We present a field-based reconstruction of the geomorphology in the Subtropical Andean mountains of the Limarí basin, semiarid central Chile (30–31° S). Fieldwork campaigns and remote-sensing analysis served for detailed geomorphological mapping at four formerly glaciated valleys in the heads of the...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-12-01
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| Series: | Journal of Maps |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17445647.2024.2329179 |
| _version_ | 1826898909776052224 |
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| author | Javiera Carraha Juan-Luis García Samuel U. Nussbaumer Hans Fernández-Navarro Isabelle Gärtner-Roer |
| author_facet | Javiera Carraha Juan-Luis García Samuel U. Nussbaumer Hans Fernández-Navarro Isabelle Gärtner-Roer |
| author_sort | Javiera Carraha |
| collection | DOAJ |
| description | We present a field-based reconstruction of the geomorphology in the Subtropical Andean mountains of the Limarí basin, semiarid central Chile (30–31° S). Fieldwork campaigns and remote-sensing analysis served for detailed geomorphological mapping at four formerly glaciated valleys in the heads of the Combarbalá and Río Hurtado sub-basins. We identify a mosaic of glacial, periglacial, and paraglacial landforms. Glacial landforms include a massive dead-ice moraine complex, with thermokarst and debris-filled fractures suggesting former ice-cored moraine degradation. This landform is superimposed by transversal and arcuate ridges suggesting active-ice processes. Periglacial landforms such as rock glaciers, gelifluction, and protalus lobes occur in cirques and U-shaped valleys, but also on moraine deposits. Paraglacial processes are indicated by talus accumulation in those formerly glaciated slopes. The geomorphological imprint is evidence for the interaction and succession between glacial, periglacial, and paraglacial dynamics from the Late Pleistocene to the present. |
| first_indexed | 2024-04-24T10:52:40Z |
| format | Article |
| id | doaj.art-eabeb0352df6497a92b3edcdf3ff3103 |
| institution | Directory Open Access Journal |
| issn | 1744-5647 |
| language | English |
| last_indexed | 2025-02-17T06:43:58Z |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Maps |
| spelling | doaj.art-eabeb0352df6497a92b3edcdf3ff31032025-01-06T14:32:05ZengTaylor & Francis GroupJournal of Maps1744-56472024-12-0120110.1080/17445647.2024.2329179Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central ChileJaviera Carraha0Juan-Luis García1Samuel U. Nussbaumer2Hans Fernández-Navarro3Isabelle Gärtner-Roer4Instituto de Geografía, Facultad de Historia, Geografía y Ciencia Política, Pontificia Universidad Católica de Chile, Santiago, ChileInstituto de Geografía, Facultad de Historia, Geografía y Ciencia Política, Pontificia Universidad Católica de Chile, Santiago, ChileDepartment of Geography, University of Zurich, Zurich, SwitzerlandInstituto de Ciencias Agroalimentarias, Animales y Ambientales (ICA3), Universidad de O'Higgins, San Fernando, ChileDepartment of Geography, University of Zurich, Zurich, SwitzerlandWe present a field-based reconstruction of the geomorphology in the Subtropical Andean mountains of the Limarí basin, semiarid central Chile (30–31° S). Fieldwork campaigns and remote-sensing analysis served for detailed geomorphological mapping at four formerly glaciated valleys in the heads of the Combarbalá and Río Hurtado sub-basins. We identify a mosaic of glacial, periglacial, and paraglacial landforms. Glacial landforms include a massive dead-ice moraine complex, with thermokarst and debris-filled fractures suggesting former ice-cored moraine degradation. This landform is superimposed by transversal and arcuate ridges suggesting active-ice processes. Periglacial landforms such as rock glaciers, gelifluction, and protalus lobes occur in cirques and U-shaped valleys, but also on moraine deposits. Paraglacial processes are indicated by talus accumulation in those formerly glaciated slopes. The geomorphological imprint is evidence for the interaction and succession between glacial, periglacial, and paraglacial dynamics from the Late Pleistocene to the present.https://www.tandfonline.com/doi/10.1080/17445647.2024.2329179GeomorphologycryosphereGlacial, paraglacial and periglacial landformsgeomorphological mappingSubtropical Andes |
| spellingShingle | Javiera Carraha Juan-Luis García Samuel U. Nussbaumer Hans Fernández-Navarro Isabelle Gärtner-Roer Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central Chile Journal of Maps Geomorphology cryosphere Glacial, paraglacial and periglacial landforms geomorphological mapping Subtropical Andes |
| title | Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central Chile |
| title_full | Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central Chile |
| title_fullStr | Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central Chile |
| title_full_unstemmed | Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central Chile |
| title_short | Late Pleistocene to Holocene glacial, periglacial, and paraglacial geomorphology of the upper Río Limarí basin (30–31° S) in the Andes of central Chile |
| title_sort | late pleistocene to holocene glacial periglacial and paraglacial geomorphology of the upper rio limari basin 30 31° s in the andes of central chile |
| topic | Geomorphology cryosphere Glacial, paraglacial and periglacial landforms geomorphological mapping Subtropical Andes |
| url | https://www.tandfonline.com/doi/10.1080/17445647.2024.2329179 |
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