Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America

A long-standing debate regarding the configuration of Pangea during the Late Paleozoic has been going on among the paleomagnetic community concerning the validity of one of two significantly different Pangea reconstructions (Pangea A vs Pangea B) since the proposal of Pangea B. Although, Pangea B av...

Descripción completa

Guardado en:
Detalles Bibliográficos
Publicado: 2018
Materias:
Argentina
article
Carboniferous
human
Jurassic
Permian
Triassic
validity
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20452322_v8_n1_p_Tomezzoli
http://hdl.handle.net/20.500.12110/paper_20452322_v8_n1_p_Tomezzoli
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_20452322_v8_n1_p_Tomezzoli
record_format dspace
spelling paper:paper_20452322_v8_n1_p_Tomezzoli2023-06-08T16:33:37Z Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America Argentina article Carboniferous human Jurassic Permian Triassic validity A long-standing debate regarding the configuration of Pangea during the Late Paleozoic has been going on among the paleomagnetic community concerning the validity of one of two significantly different Pangea reconstructions (Pangea A vs Pangea B) since the proposal of Pangea B. Although, Pangea B avoids any continental overlap marring classical Pangea A configuration (Wegener's type), it requires a Carboniferous-Permian megashear of up to 1500 km to achieve the pre-Jurassic configuration. The existence of this megashear is controversial and has led to a wide range of hypotheses, in order to avoid Pangea A continental overlaps and consequently the need for major intra-Pangea movements and to accommodate the paleomagnetic database within a Pangea A reconstruction. We present paleomagnetic results from Permian volcanic rocks of the El Centinela, La Pampa, Argentina. Undeformed volcanic rocks are not affected by any inclination bias and are, therefore, ideal to test different paleogeographic models. The presence of two different paleopole positions, at the base and the top of the same stratigraphic sequence, makes this location optimal to constrain the track of the Gondwana's path during the Late Paleozoic, which shows the transition from Pangea B during the Carboniferous-Permian, to Pangea A at the Permian - Triassic boundary. © 2018 The Author(s). 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20452322_v8_n1_p_Tomezzoli http://hdl.handle.net/20.500.12110/paper_20452322_v8_n1_p_Tomezzoli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
article
Carboniferous
human
Jurassic
Permian
Triassic
validity
spellingShingle Argentina
article
Carboniferous
human
Jurassic
Permian
Triassic
validity
Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America
topic_facet Argentina
article
Carboniferous
human
Jurassic
Permian
Triassic
validity
description A long-standing debate regarding the configuration of Pangea during the Late Paleozoic has been going on among the paleomagnetic community concerning the validity of one of two significantly different Pangea reconstructions (Pangea A vs Pangea B) since the proposal of Pangea B. Although, Pangea B avoids any continental overlap marring classical Pangea A configuration (Wegener's type), it requires a Carboniferous-Permian megashear of up to 1500 km to achieve the pre-Jurassic configuration. The existence of this megashear is controversial and has led to a wide range of hypotheses, in order to avoid Pangea A continental overlaps and consequently the need for major intra-Pangea movements and to accommodate the paleomagnetic database within a Pangea A reconstruction. We present paleomagnetic results from Permian volcanic rocks of the El Centinela, La Pampa, Argentina. Undeformed volcanic rocks are not affected by any inclination bias and are, therefore, ideal to test different paleogeographic models. The presence of two different paleopole positions, at the base and the top of the same stratigraphic sequence, makes this location optimal to constrain the track of the Gondwana's path during the Late Paleozoic, which shows the transition from Pangea B during the Carboniferous-Permian, to Pangea A at the Permian - Triassic boundary. © 2018 The Author(s).
title Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America
title_short Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America
title_full Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America
title_fullStr Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America
title_full_unstemmed Gondwana's Apparent Polar Wander Path during the Permian-new insights from South America
title_sort gondwana's apparent polar wander path during the permian-new insights from south america
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20452322_v8_n1_p_Tomezzoli
http://hdl.handle.net/20.500.12110/paper_20452322_v8_n1_p_Tomezzoli
_version_ 1768543581720543232

Ejemplares similares