Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina
We describe the Pleistocene evolution of the landscape in the Laguna Potrok Aike area in southern Patagonia, Argentina, based on a geomorphological survey. Basaltic eruptions generated tablelands and scoria cones between the Late Miocene and Middle Pleistocene, and phreatomagmatic eruptions produced...
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ftconicet:oai:ri.conicet.gov.ar:11336/26738 2023-10-09T21:55:13+02:00 Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina Coronato, Andrea Maria Josefa Ercolano, Bettina Corbella, Jorge Hugo Tiberi, Pedro Eugenio application/pdf http://hdl.handle.net/11336/26738 eng eng Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2012.06.019 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0277379112002582 http://hdl.handle.net/11336/26738 Coronato, Andrea Maria Josefa; Ercolano, Bettina; Corbella, Jorge Hugo; Tiberi, Pedro Eugenio; Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina; Elsevier; Quaternary Science Reviews; 71; 7-2013; 13-26 0277-3791 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Maar Glaciofluvial Landforms Potrok Aike Argentina Middle Pleistocene South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.quascirev.2012.06.019 2023-09-24T20:35:24Z We describe the Pleistocene evolution of the landscape in the Laguna Potrok Aike area in southern Patagonia, Argentina, based on a geomorphological survey. Basaltic eruptions generated tablelands and scoria cones between the Late Miocene and Middle Pleistocene, and phreatomagmatic eruptions produced maars during Middle and Late Pleistocene time. The first glaciations during the Early Pleistocene generated a gently undulating to flat landscape that was affected by cryogenic processes; they are documented but not dated. Outwash surfaces indicate that the Greatest Patagonian Glaciation was multi-phased. The eruption that produced Potrok Aike maar truncated terrace levels dating to a Middle Pleistocene glaciation. The abundance of maars dating to this time may be linked to large amounts of water associated with meltwater streams and permafrost. The landscape in the Potrok Aike area has changed little since the Middle Pleistocene and only minor modifications of landforms have occurred due to cryogenesis, moderate fluvial incision, mass wasting and eolian activity. Fil: Coronato, Andrea Maria Josefa. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Austral de Investigaciones Cientificas; Argentina. Universidad Nacional de la Patagonia; Argentina Fil: Ercolano, Bettina. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; Argentina Fil: Corbella, Jorge Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Tiberi, Pedro Eugenio. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; Argentina Article in Journal/Newspaper permafrost CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Austral Patagonia Argentino Argentina Gallegos ENVELOPE(-67.150,-67.150,-68.133,-68.133) Quaternary Science Reviews 71 13 26 |
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Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Maar Glaciofluvial Landforms Potrok Aike Argentina Middle Pleistocene South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Maar Glaciofluvial Landforms Potrok Aike Argentina Middle Pleistocene South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Coronato, Andrea Maria Josefa Ercolano, Bettina Corbella, Jorge Hugo Tiberi, Pedro Eugenio Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina |
topic_facet |
Maar Glaciofluvial Landforms Potrok Aike Argentina Middle Pleistocene South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
We describe the Pleistocene evolution of the landscape in the Laguna Potrok Aike area in southern Patagonia, Argentina, based on a geomorphological survey. Basaltic eruptions generated tablelands and scoria cones between the Late Miocene and Middle Pleistocene, and phreatomagmatic eruptions produced maars during Middle and Late Pleistocene time. The first glaciations during the Early Pleistocene generated a gently undulating to flat landscape that was affected by cryogenic processes; they are documented but not dated. Outwash surfaces indicate that the Greatest Patagonian Glaciation was multi-phased. The eruption that produced Potrok Aike maar truncated terrace levels dating to a Middle Pleistocene glaciation. The abundance of maars dating to this time may be linked to large amounts of water associated with meltwater streams and permafrost. The landscape in the Potrok Aike area has changed little since the Middle Pleistocene and only minor modifications of landforms have occurred due to cryogenesis, moderate fluvial incision, mass wasting and eolian activity. Fil: Coronato, Andrea Maria Josefa. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Austral de Investigaciones Cientificas; Argentina. Universidad Nacional de la Patagonia; Argentina Fil: Ercolano, Bettina. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; Argentina Fil: Corbella, Jorge Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Tiberi, Pedro Eugenio. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; Argentina |
format |
Article in Journal/Newspaper |
author |
Coronato, Andrea Maria Josefa Ercolano, Bettina Corbella, Jorge Hugo Tiberi, Pedro Eugenio |
author_facet |
Coronato, Andrea Maria Josefa Ercolano, Bettina Corbella, Jorge Hugo Tiberi, Pedro Eugenio |
author_sort |
Coronato, Andrea Maria Josefa |
title |
Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina |
title_short |
Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina |
title_full |
Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina |
title_fullStr |
Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina |
title_full_unstemmed |
Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina |
title_sort |
glacial, fluvial and volcanic landscape evolution in the laguna potrok aike maar area, southern patagonia, argentina |
publisher |
Elsevier |
url |
http://hdl.handle.net/11336/26738 |
long_lat |
ENVELOPE(-67.150,-67.150,-68.133,-68.133) |
geographic |
Austral Patagonia Argentino Argentina Gallegos |
geographic_facet |
Austral Patagonia Argentino Argentina Gallegos |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2012.06.019 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0277379112002582 http://hdl.handle.net/11336/26738 Coronato, Andrea Maria Josefa; Ercolano, Bettina; Corbella, Jorge Hugo; Tiberi, Pedro Eugenio; Glacial, fluvial and volcanic landscape evolution in the Laguna Potrok Aike maar area, Southern Patagonia, Argentina; Elsevier; Quaternary Science Reviews; 71; 7-2013; 13-26 0277-3791 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.quascirev.2012.06.019 |
container_title |
Quaternary Science Reviews |
container_volume |
71 |
container_start_page |
13 |
op_container_end_page |
26 |
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1779319063676190720 |