Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes
The Permo-Carboniferous encompasses the deterioration of the Late Paleozoic Ice Age (LPIA), one of the most important glacial events in Earth's history. However, the key drivers behind the demise of the ice sheets remain controversial. Recent advances attained from high precision zircon ages pr...
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ftconicet:oai:ri.conicet.gov.ar:11336/143028 2023-10-09T21:55:59+02:00 Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes Gallo, Leandro César Dalenz Farjat, Alejandra Tomezzoli, Renata Nela Calvagno, Juan Martín Hernández, Roberto Mario application/pdf http://hdl.handle.net/11336/143028 eng eng Elsevier Science info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102923 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981120304661 http://hdl.handle.net/11336/143028 Gallo, Leandro César; Dalenz Farjat, Alejandra; Tomezzoli, Renata Nela; Calvagno, Juan Martín; Hernández, Roberto Mario; Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes; Elsevier Science; Journal of South American Earth Sciences; 106; 102923; 3-2021; 1-35 0895-9811 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Paleozoico superior Edad de Hielo del Paleozoico Superior Paleomagnetismo Pangea 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.jsames.2020.102923 2023-09-24T18:19:44Z The Permo-Carboniferous encompasses the deterioration of the Late Paleozoic Ice Age (LPIA), one of the most important glacial events in Earth's history. However, the key drivers behind the demise of the ice sheets remain controversial. Recent advances attained from high precision zircon ages provide chronostratigraphic frameworks for key basins across Gondwana, but the location and geographic extent of ice centers in west-central Gondwana remain ambiguous. Permo-Carboniferous strata from the Tarija Basin in southern Bolivia are analogous to many late Paleozoic basins across South America and provide key evidence regarding the LPIA and its demise. Detailed sedimentologic data from the Mandiyutí and Cuevo Groups exposed in the Iñiguazú anticline shows a pattern of climate-sensitive facies that records a shift from cold-humid to warm-arid conditions, in accordance with the long-term transition from icehouse-to-greenhouse conditions widely recognized across western Gondwana. Although it has been long recognized that the main drivers behind the LPIA establishment resulted from past latitudinal plate motions over the polar regions, the northward drift of Gondwana away from the South Pole remains poorly constrained owing to debates around the paleogeography of Pangea. Here, from a thorough probabilistic assessment of paleomagnetic data, we have determined a robust estimator of the varying paleolatitude through the late Paleozoic that provides a much needed paleolatitudinal framework for the Tarija basin. Independent evidence from the paleomagnetic analysis has shown that the Tarija basin was within the polar circle for the Upper Devonian but started to move rapidly towards the equator during the Carboniferous and remained essentially isolatitudinal throughout the Permian. According to these findings, we conclude that the key driver controlling the icehouse-greenhouse transition in this region was the continental drift of Gondwana across zonal climate belts. Fil: Gallo, Leandro César. Consejo Nacional de ... Article in Journal/Newspaper South pole CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) South Pole Hielo ENVELOPE(-58.133,-58.133,-62.083,-62.083) Journal of South American Earth Sciences 106 102923 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Paleozoico superior Edad de Hielo del Paleozoico Superior Paleomagnetismo Pangea https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Paleozoico superior Edad de Hielo del Paleozoico Superior Paleomagnetismo Pangea https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Gallo, Leandro César Dalenz Farjat, Alejandra Tomezzoli, Renata Nela Calvagno, Juan Martín Hernández, Roberto Mario Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes |
topic_facet |
Paleozoico superior Edad de Hielo del Paleozoico Superior Paleomagnetismo Pangea https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The Permo-Carboniferous encompasses the deterioration of the Late Paleozoic Ice Age (LPIA), one of the most important glacial events in Earth's history. However, the key drivers behind the demise of the ice sheets remain controversial. Recent advances attained from high precision zircon ages provide chronostratigraphic frameworks for key basins across Gondwana, but the location and geographic extent of ice centers in west-central Gondwana remain ambiguous. Permo-Carboniferous strata from the Tarija Basin in southern Bolivia are analogous to many late Paleozoic basins across South America and provide key evidence regarding the LPIA and its demise. Detailed sedimentologic data from the Mandiyutí and Cuevo Groups exposed in the Iñiguazú anticline shows a pattern of climate-sensitive facies that records a shift from cold-humid to warm-arid conditions, in accordance with the long-term transition from icehouse-to-greenhouse conditions widely recognized across western Gondwana. Although it has been long recognized that the main drivers behind the LPIA establishment resulted from past latitudinal plate motions over the polar regions, the northward drift of Gondwana away from the South Pole remains poorly constrained owing to debates around the paleogeography of Pangea. Here, from a thorough probabilistic assessment of paleomagnetic data, we have determined a robust estimator of the varying paleolatitude through the late Paleozoic that provides a much needed paleolatitudinal framework for the Tarija basin. Independent evidence from the paleomagnetic analysis has shown that the Tarija basin was within the polar circle for the Upper Devonian but started to move rapidly towards the equator during the Carboniferous and remained essentially isolatitudinal throughout the Permian. According to these findings, we conclude that the key driver controlling the icehouse-greenhouse transition in this region was the continental drift of Gondwana across zonal climate belts. Fil: Gallo, Leandro César. Consejo Nacional de ... |
format |
Article in Journal/Newspaper |
author |
Gallo, Leandro César Dalenz Farjat, Alejandra Tomezzoli, Renata Nela Calvagno, Juan Martín Hernández, Roberto Mario |
author_facet |
Gallo, Leandro César Dalenz Farjat, Alejandra Tomezzoli, Renata Nela Calvagno, Juan Martín Hernández, Roberto Mario |
author_sort |
Gallo, Leandro César |
title |
Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes |
title_short |
Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes |
title_full |
Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes |
title_fullStr |
Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes |
title_full_unstemmed |
Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes |
title_sort |
sedimentary evolution of a permo-carboniferous succession in southern bolivia: responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes |
publisher |
Elsevier Science |
url |
http://hdl.handle.net/11336/143028 |
long_lat |
ENVELOPE(-58.133,-58.133,-62.083,-62.083) |
geographic |
South Pole Hielo |
geographic_facet |
South Pole Hielo |
genre |
South pole |
genre_facet |
South pole |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102923 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981120304661 http://hdl.handle.net/11336/143028 Gallo, Leandro César; Dalenz Farjat, Alejandra; Tomezzoli, Renata Nela; Calvagno, Juan Martín; Hernández, Roberto Mario; Sedimentary evolution of a Permo-Carboniferous succession in southern Bolivia: Responses to icehouse-greenhouse transition from a probabilistic assessment of paleolatitudes; Elsevier Science; Journal of South American Earth Sciences; 106; 102923; 3-2021; 1-35 0895-9811 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.jsames.2020.102923 |
container_title |
Journal of South American Earth Sciences |
container_volume |
106 |
container_start_page |
102923 |
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1779320273491722240 |