Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)

The Upper Jurassic Cañadón Asfalto Formation (Cañadón Asfalto Basin, Patagonia Argentina), consists mainly of carbonate deposits accumulated in hydrologically closed lakes, which were especially sensitive to rainfall changes. The lacustrine carbonate sedimentation also interplayed with volcanic epis...

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Detalles Bibliográficos
Autores principales: Cabaleri, N.G., Armella, C.
Formato: JOUR
Materias:
Argentina
Cañadón Asfalto Formation
Lacustrine Biohermal Belt
Upper Jurassic
Jurassic
lacustrine deposit
Chubut
South America
Western Hemisphere
World
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_16956133_v3_n2_p205_Cabaleri
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_16956133_v3_n2_p205_Cabaleri
record_format dspace
spelling todo:paper_16956133_v3_n2_p205_Cabaleri2023-10-03T16:29:59Z Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina) Cabaleri, N.G. Armella, C. Argentina Cañadón Asfalto Formation Lacustrine Biohermal Belt Upper Jurassic Jurassic lacustrine deposit Argentina Chubut South America Western Hemisphere World The Upper Jurassic Cañadón Asfalto Formation (Cañadón Asfalto Basin, Patagonia Argentina), consists mainly of carbonate deposits accumulated in hydrologically closed lakes, which were especially sensitive to rainfall changes. The lacustrine carbonate sedimentation also interplayed with volcanic episodes recorded by tuffs and lavas, as observed in different basin sectors. These lakes probably underwent warm, alternating humid-subarid and arid conditions that resulted in spreading and shrinkage cycles of the closed water bodies. In the Cerro Cóndor area, carbonates were deposited as part of a 500 m long and 39 m thick microbial biohermal body that extended over 5,5 km2, overlying a hard basalt substratum. This bioherm ridge acted as a physiographic barrier that controlled the sedimentation in the surrounding lacustrine zones, whose environments ranged from shallow and deep littoral to eulittoral (including microbial patch reefs) and palustrine. A hydrologically isolated portion of the lacustrine basin evolved into a pan lake where widespread carbonate-evaporite sequences developed. © UB-ICTJA. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_16956133_v3_n2_p205_Cabaleri
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
Cañadón Asfalto Formation
Lacustrine Biohermal Belt
Upper Jurassic
Jurassic
lacustrine deposit
Argentina
Chubut
South America
Western Hemisphere
World
spellingShingle Argentina
Cañadón Asfalto Formation
Lacustrine Biohermal Belt
Upper Jurassic
Jurassic
lacustrine deposit
Argentina
Chubut
South America
Western Hemisphere
World
Cabaleri, N.G.
Armella, C.
Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)
topic_facet Argentina
Cañadón Asfalto Formation
Lacustrine Biohermal Belt
Upper Jurassic
Jurassic
lacustrine deposit
Argentina
Chubut
South America
Western Hemisphere
World
description The Upper Jurassic Cañadón Asfalto Formation (Cañadón Asfalto Basin, Patagonia Argentina), consists mainly of carbonate deposits accumulated in hydrologically closed lakes, which were especially sensitive to rainfall changes. The lacustrine carbonate sedimentation also interplayed with volcanic episodes recorded by tuffs and lavas, as observed in different basin sectors. These lakes probably underwent warm, alternating humid-subarid and arid conditions that resulted in spreading and shrinkage cycles of the closed water bodies. In the Cerro Cóndor area, carbonates were deposited as part of a 500 m long and 39 m thick microbial biohermal body that extended over 5,5 km2, overlying a hard basalt substratum. This bioherm ridge acted as a physiographic barrier that controlled the sedimentation in the surrounding lacustrine zones, whose environments ranged from shallow and deep littoral to eulittoral (including microbial patch reefs) and palustrine. A hydrologically isolated portion of the lacustrine basin evolved into a pan lake where widespread carbonate-evaporite sequences developed. © UB-ICTJA.
format JOUR
author Cabaleri, N.G.
Armella, C.
author_facet Cabaleri, N.G.
Armella, C.
author_sort Cabaleri, N.G.
title Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)
title_short Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)
title_full Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)
title_fullStr Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)
title_full_unstemmed Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)
title_sort influence of a biohermal belt on the lacustrine sedimentation of the cañadón asfalto formation (upper jurassic, chubut province, southern argentina)
url http://hdl.handle.net/20.500.12110/paper_16956133_v3_n2_p205_Cabaleri
work_keys_str_mv AT cabalering influenceofabiohermalbeltonthelacustrinesedimentationofthecanadonasfaltoformationupperjurassicchubutprovincesouthernargentina
AT armellac influenceofabiohermalbeltonthelacustrinesedimentationofthecanadonasfaltoformationupperjurassicchubutprovincesouthernargentina
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