Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening
The identification of three independent rifting events in the Colorado basin area highlights the complexity of its Mesozoic rifting history, which ended in the Early Cretaceous with the opening of the South Atlantic Ocean. A first rifting event, associated with the extensional reactivation of previo...
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ftunibueairesbd:paper:paper_09544879_v30_n5_p359_Lovecchio 2023-05-15T18:21:05+02:00 Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09544879_v30_n5_p359_Lovecchio https://hdl.handle.net/20.500.12110/paper_09544879_v30_n5_p359_Lovecchio unknown https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09544879_v30_n5_p359_Lovecchio http://hdl.handle.net/20.500.12110/paper_09544879_v30_n5_p359_Lovecchio basin evolution continental breakup Cretaceous fold belt Gondwana rifting thrust Argentina Atlantic Ocean Atlantic Ocean (South) Colorado Basin [Argentina] Colorado Basin [North America] Salado Basin 2018 ftunibueairesbd https://doi.org/20.500.12110/paper_09544879_v30_n5_p359_Lovecchio 2023-02-16T02:01:48Z The identification of three independent rifting events in the Colorado basin area highlights the complexity of its Mesozoic rifting history, which ended in the Early Cretaceous with the opening of the South Atlantic Ocean. A first rifting event, associated with the extensional reactivation of previously compressive thrusts of the Ventania-Cape fold belt, is transected by faults forming the main depocenters of the Colorado and possibly the adjacent Salado basin. The second and main rifting stage is correlated with the Early Jurassic Karoo rifting. In the Early Cretaceous, WNW–ESE extension produced NNE-trending landward-dipping faults, concentrated in the outer 100–200 km of the continental crust domain, possibly coeval with SDR emplacement. This is the first identification of three superimposed rifting settings in the southern South Atlantic realm and is key to understanding the complex Mesozoic breakup history of SW Gondwana. © 2018 John Wiley & Sons Ltd Other/Unknown Material South Atlantic Ocean Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) Argentina |
institution |
Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
topic |
basin evolution continental breakup Cretaceous fold belt Gondwana rifting thrust Argentina Atlantic Ocean Atlantic Ocean (South) Colorado Basin [Argentina] Colorado Basin [North America] Salado Basin |
spellingShingle |
basin evolution continental breakup Cretaceous fold belt Gondwana rifting thrust Argentina Atlantic Ocean Atlantic Ocean (South) Colorado Basin [Argentina] Colorado Basin [North America] Salado Basin Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening |
topic_facet |
basin evolution continental breakup Cretaceous fold belt Gondwana rifting thrust Argentina Atlantic Ocean Atlantic Ocean (South) Colorado Basin [Argentina] Colorado Basin [North America] Salado Basin |
description |
The identification of three independent rifting events in the Colorado basin area highlights the complexity of its Mesozoic rifting history, which ended in the Early Cretaceous with the opening of the South Atlantic Ocean. A first rifting event, associated with the extensional reactivation of previously compressive thrusts of the Ventania-Cape fold belt, is transected by faults forming the main depocenters of the Colorado and possibly the adjacent Salado basin. The second and main rifting stage is correlated with the Early Jurassic Karoo rifting. In the Early Cretaceous, WNW–ESE extension produced NNE-trending landward-dipping faults, concentrated in the outer 100–200 km of the continental crust domain, possibly coeval with SDR emplacement. This is the first identification of three superimposed rifting settings in the southern South Atlantic realm and is key to understanding the complex Mesozoic breakup history of SW Gondwana. © 2018 John Wiley & Sons Ltd |
title |
Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening |
title_short |
Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening |
title_full |
Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening |
title_fullStr |
Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening |
title_full_unstemmed |
Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening |
title_sort |
multistage rifting evolution of the colorado basin (offshore argentina): evidence for extensional settings prior to the south atlantic opening |
publishDate |
2018 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09544879_v30_n5_p359_Lovecchio https://hdl.handle.net/20.500.12110/paper_09544879_v30_n5_p359_Lovecchio |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09544879_v30_n5_p359_Lovecchio http://hdl.handle.net/20.500.12110/paper_09544879_v30_n5_p359_Lovecchio |
op_doi |
https://doi.org/20.500.12110/paper_09544879_v30_n5_p359_Lovecchio |
_version_ |
1766200166464880640 |