Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites
Late Paleozoic glacial diamictites occur in many localities in western Argentina, indicating that the region was strongly affected by glaciation during the mid-Carboniferous (late Serpukhovian–early Bashkirian). In most instances these diamictites are found in steeply walled paleovalley settings in...
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ftconicet:oai:ri.conicet.gov.ar:11336/33592 2023-10-09T21:51:02+02:00 Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites Gulbranson, Erik L. Isbell, John L. Montañez, Isabel P. Limarino, Carlos Oscar Marenssi, Sergio Alfredo Meyer, Kyle Hull, Clara application/pdf http://hdl.handle.net/11336/33592 eng eng Elsevier info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1342937X13001172 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gr.2013.03.017 http://hdl.handle.net/11336/33592 Meyer, Kyle; Hull, Clara; Marenssi, Sergio Alfredo; Montañez, Isabel P.; Gulbranson, Erik L.; Limarino, Carlos Oscar; et al.; Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites; Elsevier; Gondwana Research; 25; 4; 4-2013; 1369-1379 1342-937X CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ Late Paleozoic ice age Mass transport Diamictite Gondwana Carboniferous 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.gr.2013.03.017 2023-09-24T18:21:38Z Late Paleozoic glacial diamictites occur in many localities in western Argentina, indicating that the region was strongly affected by glaciation during the mid-Carboniferous (late Serpukhovian–early Bashkirian). In most instances these diamictites are found in steeply walled paleovalley settings in the Andean Precordillera. This study presents new data from a locality north of the Precordillera that suggests an additional, distinct, volume of ice existed in the region during the Carboniferous. The glacigenic diamictites in the Rio Blanco Basin were ultimately emplaced as gravity flows, precluding inferences of paleo-ice volume. Fold nose orientation and soft-sediment groove orientations within the diamictites indicate that the deposits were emplaced from north to south, suggesting that glacial ice was most likely not sourced from the proto-Precordillera at this locality, requiring the need for another ice center to the north of the basin. Diamictite facies indicates that the sediment was initially supplied to the study area by a warm-based glacier. Fil: Gulbranson, Erik L. University of California at Davis; Estados Unidos. University of Wisconsin; Estados Unidos Fil: Isbell, John L. University of Wisconsin; Estados Unidos Fil: Montañez, Isabel P. University of California at Davis; Estados Unidos Fil: Limarino, Carlos Oscar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Marenssi, Sergio Alfredo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Meyer, Kyle. University of California at Davis; Estados Unidos Fil: Hull, Clara. University of California at Davis; Estados Unidos Article in Journal/Newspaper Dirección Nacional del Antártico Instituto Antártico Argentino CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentino Argentina Blanco ENVELOPE(-55.233,-55.233,-61.250,-61.250) Isbell ENVELOPE(156.400,156.400,-82.367,-82.367) Gondwana Research 25 4 1369 1379 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Late Paleozoic ice age Mass transport Diamictite Gondwana Carboniferous https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Late Paleozoic ice age Mass transport Diamictite Gondwana Carboniferous https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Gulbranson, Erik L. Isbell, John L. Montañez, Isabel P. Limarino, Carlos Oscar Marenssi, Sergio Alfredo Meyer, Kyle Hull, Clara Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites |
topic_facet |
Late Paleozoic ice age Mass transport Diamictite Gondwana Carboniferous https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Late Paleozoic glacial diamictites occur in many localities in western Argentina, indicating that the region was strongly affected by glaciation during the mid-Carboniferous (late Serpukhovian–early Bashkirian). In most instances these diamictites are found in steeply walled paleovalley settings in the Andean Precordillera. This study presents new data from a locality north of the Precordillera that suggests an additional, distinct, volume of ice existed in the region during the Carboniferous. The glacigenic diamictites in the Rio Blanco Basin were ultimately emplaced as gravity flows, precluding inferences of paleo-ice volume. Fold nose orientation and soft-sediment groove orientations within the diamictites indicate that the deposits were emplaced from north to south, suggesting that glacial ice was most likely not sourced from the proto-Precordillera at this locality, requiring the need for another ice center to the north of the basin. Diamictite facies indicates that the sediment was initially supplied to the study area by a warm-based glacier. Fil: Gulbranson, Erik L. University of California at Davis; Estados Unidos. University of Wisconsin; Estados Unidos Fil: Isbell, John L. University of Wisconsin; Estados Unidos Fil: Montañez, Isabel P. University of California at Davis; Estados Unidos Fil: Limarino, Carlos Oscar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Marenssi, Sergio Alfredo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Meyer, Kyle. University of California at Davis; Estados Unidos Fil: Hull, Clara. University of California at Davis; Estados Unidos |
format |
Article in Journal/Newspaper |
author |
Gulbranson, Erik L. Isbell, John L. Montañez, Isabel P. Limarino, Carlos Oscar Marenssi, Sergio Alfredo Meyer, Kyle Hull, Clara |
author_facet |
Gulbranson, Erik L. Isbell, John L. Montañez, Isabel P. Limarino, Carlos Oscar Marenssi, Sergio Alfredo Meyer, Kyle Hull, Clara |
author_sort |
Gulbranson, Erik L. |
title |
Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites |
title_short |
Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites |
title_full |
Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites |
title_fullStr |
Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites |
title_full_unstemmed |
Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites |
title_sort |
reassessment of mid-carboniferous glacial extent in southwestern gondwana (rio blanco basin, argentina) inferred from paleo-mass transport of diamictites |
publisher |
Elsevier |
url |
http://hdl.handle.net/11336/33592 |
long_lat |
ENVELOPE(-55.233,-55.233,-61.250,-61.250) ENVELOPE(156.400,156.400,-82.367,-82.367) |
geographic |
Argentino Argentina Blanco Isbell |
geographic_facet |
Argentino Argentina Blanco Isbell |
genre |
Dirección Nacional del Antártico Instituto Antártico Argentino |
genre_facet |
Dirección Nacional del Antártico Instituto Antártico Argentino |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1342937X13001172 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gr.2013.03.017 http://hdl.handle.net/11336/33592 Meyer, Kyle; Hull, Clara; Marenssi, Sergio Alfredo; Montañez, Isabel P.; Gulbranson, Erik L.; Limarino, Carlos Oscar; et al.; Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites; Elsevier; Gondwana Research; 25; 4; 4-2013; 1369-1379 1342-937X CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.gr.2013.03.017 |
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Gondwana Research |
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25 |
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4 |
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1369 |
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1379 |
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