A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone
The Paleozoic-Triassic Patagonian basins, at present comprising the Andean hinterland and structural basement of active basins, document a pre-Jurassic evolution associated with accretionary processes at the paleo-Pacific convergent margin. The Early Cambrian basins constitute the earliest record fo...
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ftconicet:oai:ri.conicet.gov.ar:11336/97380 2023-10-09T21:45:54+02:00 A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone Suárez, Rodrigo Javier Gonzalez, Pablo Diego Ghiglione, Matias application/pdf http://hdl.handle.net/11336/97380 eng eng Pergamon-Elsevier Science Ltd info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981119300203 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2019.102256 http://hdl.handle.net/11336/97380 Suárez, Rodrigo Javier; Gonzalez, Pablo Diego; Ghiglione, Matias; A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 95; 11-2019; 1-13 0895-9811 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ACCRETIONARY OROGENESIS ANTARCTIC PENINSULA DETRITAL ZIRCONS PALEOZOIC-TRIASSIC BASINS PATAGONIA PRE-JURASSIC RETREATING SLAB 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.2019.102256 2023-09-24T19:46:15Z The Paleozoic-Triassic Patagonian basins, at present comprising the Andean hinterland and structural basement of active basins, document a pre-Jurassic evolution associated with accretionary processes at the paleo-Pacific convergent margin. The Early Cambrian basins constitute the earliest record for the emplacement of the Terra Australis Orogen in northern Patagonia and preserve metavolcanic strata derived from an extensional magmatic arc. Together, pre-Jurassic basins document the Early Cambrian to Late Triassic oceanward migration of the trench-forearc system, evidencing that slab retreat was the common subduction setup. Tectonostratigraphy of these basins can be divided into three major sequences, from east to west: (i) early-middle Cambrian, (ii) Silurian-Carboniferous and (iii) Late Permian-late Triassic, which are separated by angular unconformities, evidencing large deformational pulses (advancing stages?) at Early Ordovician, early-middle Permian, and Late Triassic-Early Jurassic times. The Early Cambrian basins are mainly represented in the North Patagonian Massif by the Nahuel Niyeu forearc basin and the El Jagüelito backarc basin, which were closed and metamorphosed during the Early Ordovician. The Silurian-Devonian clastic sequences of the Atlantic region and Malvinas Islands evolved in an intracontinental rift setting and were deformed in the Permian when thrust tectonics took place at the continental scale, while the contemporaneous trench-forearc system represented in western Patagonia was governed by slab dynamics and accretion of oceanic material. During the final Pangea assembly (Permian-Triassic), the Antarctic Peninsula crustal block formed part of Patagonia as evidenced the detrital zircons record in the Permian-Triassic arc-flank basins. Deformation and metamorphism of these late Paleozoic-early Mesozoic basins could have occurred during the latest Triassic-Early Jurassic Chonide event. Fil: Suárez, Rodrigo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Antarctic Peninsula Patagonia Pacific Terra Australis ENVELOPE(-62.900,-62.900,-64.900,-64.900) Journal of South American Earth Sciences 95 102256 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ACCRETIONARY OROGENESIS ANTARCTIC PENINSULA DETRITAL ZIRCONS PALEOZOIC-TRIASSIC BASINS PATAGONIA PRE-JURASSIC RETREATING SLAB https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
ACCRETIONARY OROGENESIS ANTARCTIC PENINSULA DETRITAL ZIRCONS PALEOZOIC-TRIASSIC BASINS PATAGONIA PRE-JURASSIC RETREATING SLAB https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Suárez, Rodrigo Javier Gonzalez, Pablo Diego Ghiglione, Matias A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone |
topic_facet |
ACCRETIONARY OROGENESIS ANTARCTIC PENINSULA DETRITAL ZIRCONS PALEOZOIC-TRIASSIC BASINS PATAGONIA PRE-JURASSIC RETREATING SLAB https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The Paleozoic-Triassic Patagonian basins, at present comprising the Andean hinterland and structural basement of active basins, document a pre-Jurassic evolution associated with accretionary processes at the paleo-Pacific convergent margin. The Early Cambrian basins constitute the earliest record for the emplacement of the Terra Australis Orogen in northern Patagonia and preserve metavolcanic strata derived from an extensional magmatic arc. Together, pre-Jurassic basins document the Early Cambrian to Late Triassic oceanward migration of the trench-forearc system, evidencing that slab retreat was the common subduction setup. Tectonostratigraphy of these basins can be divided into three major sequences, from east to west: (i) early-middle Cambrian, (ii) Silurian-Carboniferous and (iii) Late Permian-late Triassic, which are separated by angular unconformities, evidencing large deformational pulses (advancing stages?) at Early Ordovician, early-middle Permian, and Late Triassic-Early Jurassic times. The Early Cambrian basins are mainly represented in the North Patagonian Massif by the Nahuel Niyeu forearc basin and the El Jagüelito backarc basin, which were closed and metamorphosed during the Early Ordovician. The Silurian-Devonian clastic sequences of the Atlantic region and Malvinas Islands evolved in an intracontinental rift setting and were deformed in the Permian when thrust tectonics took place at the continental scale, while the contemporaneous trench-forearc system represented in western Patagonia was governed by slab dynamics and accretion of oceanic material. During the final Pangea assembly (Permian-Triassic), the Antarctic Peninsula crustal block formed part of Patagonia as evidenced the detrital zircons record in the Permian-Triassic arc-flank basins. Deformation and metamorphism of these late Paleozoic-early Mesozoic basins could have occurred during the latest Triassic-Early Jurassic Chonide event. Fil: Suárez, Rodrigo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de ... |
format |
Article in Journal/Newspaper |
author |
Suárez, Rodrigo Javier Gonzalez, Pablo Diego Ghiglione, Matias |
author_facet |
Suárez, Rodrigo Javier Gonzalez, Pablo Diego Ghiglione, Matias |
author_sort |
Suárez, Rodrigo Javier |
title |
A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone |
title_short |
A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone |
title_full |
A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone |
title_fullStr |
A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone |
title_full_unstemmed |
A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone |
title_sort |
review on the tectonic evolution of the paleozoic-triassic basins from patagonia: record of protracted westward migration of the pre-jurassic subduction zone |
publisher |
Pergamon-Elsevier Science Ltd |
url |
http://hdl.handle.net/11336/97380 |
long_lat |
ENVELOPE(-62.900,-62.900,-64.900,-64.900) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Patagonia Pacific Terra Australis |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Patagonia Pacific Terra Australis |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981119300203 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2019.102256 http://hdl.handle.net/11336/97380 Suárez, Rodrigo Javier; Gonzalez, Pablo Diego; Ghiglione, Matias; A review on the tectonic evolution of the Paleozoic-Triassic basins from Patagonia: Record of protracted westward migration of the pre-Jurassic subduction zone; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 95; 11-2019; 1-13 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.2019.102256 |
container_title |
Journal of South American Earth Sciences |
container_volume |
95 |
container_start_page |
102256 |
_version_ |
1779321564756443136 |