Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina

Fosssil plants were recovered from the upper levels of the Triassic Agua de la Zorra Formation, Cuyo Basin, Mendoza Province, Argentina. The formation represents a fluvio-lacustrine environment affected by volcanism. The plant assemblage is dominated by Corystospermales (Dicroidium, Johnstonia and X...

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Autores principales: Ottone, E.G., Avellaneda, D., Koukharsky, M.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00027014_v48_n2_p177_Ottone
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spelling todo:paper_00027014_v48_n2_p177_Ottone2023-10-03T13:53:10Z Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina Ottone, E.G. Avellaneda, D. Koukharsky, M. Argentina Basaltic peperites Plants Systematics Triassic fern fluviolacustrine deposit fossil record green alga kerogen organic matter taxonomy Triassic volcanism Argentina Mendoza Botryococcus Chlorophyta Corystospermales Dicroidium Equisetales Johnstonia Fosssil plants were recovered from the upper levels of the Triassic Agua de la Zorra Formation, Cuyo Basin, Mendoza Province, Argentina. The formation represents a fluvio-lacustrine environment affected by volcanism. The plant assemblage is dominated by Corystospermales (Dicroidium, Johnstonia and Xylopteris), with subordinate Equisetales and Osmundales. Abundant amorphous organic matter, together with scarce botryoidal colonies of the green algae Botryococcus are also present in the plant bearing levels. Notwithstanding the fact that strata yielding fossil plants are commonly associated with basaltic peperites, the kerogen of these levels displays low to moderate thermal alteration, suggesting that the sediments of the bottom were not extensively unsettled by the episodic entrance of basaltic lava in the freshwater body. Fil:Ottone, E.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Avellaneda, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Koukharsky, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00027014_v48_n2_p177_Ottone
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
Basaltic peperites
Plants
Systematics
Triassic
fern
fluviolacustrine deposit
fossil record
green alga
kerogen
organic matter
taxonomy
Triassic
volcanism
Argentina
Mendoza
Botryococcus
Chlorophyta
Corystospermales
Dicroidium
Equisetales
Johnstonia
spellingShingle Argentina
Basaltic peperites
Plants
Systematics
Triassic
fern
fluviolacustrine deposit
fossil record
green alga
kerogen
organic matter
taxonomy
Triassic
volcanism
Argentina
Mendoza
Botryococcus
Chlorophyta
Corystospermales
Dicroidium
Equisetales
Johnstonia
Ottone, E.G.
Avellaneda, D.
Koukharsky, M.
Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina
topic_facet Argentina
Basaltic peperites
Plants
Systematics
Triassic
fern
fluviolacustrine deposit
fossil record
green alga
kerogen
organic matter
taxonomy
Triassic
volcanism
Argentina
Mendoza
Botryococcus
Chlorophyta
Corystospermales
Dicroidium
Equisetales
Johnstonia
description Fosssil plants were recovered from the upper levels of the Triassic Agua de la Zorra Formation, Cuyo Basin, Mendoza Province, Argentina. The formation represents a fluvio-lacustrine environment affected by volcanism. The plant assemblage is dominated by Corystospermales (Dicroidium, Johnstonia and Xylopteris), with subordinate Equisetales and Osmundales. Abundant amorphous organic matter, together with scarce botryoidal colonies of the green algae Botryococcus are also present in the plant bearing levels. Notwithstanding the fact that strata yielding fossil plants are commonly associated with basaltic peperites, the kerogen of these levels displays low to moderate thermal alteration, suggesting that the sediments of the bottom were not extensively unsettled by the episodic entrance of basaltic lava in the freshwater body.
format JOUR
author Ottone, E.G.
Avellaneda, D.
Koukharsky, M.
author_facet Ottone, E.G.
Avellaneda, D.
Koukharsky, M.
author_sort Ottone, E.G.
title Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina
title_short Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina
title_full Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina
title_fullStr Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina
title_full_unstemmed Triassic plants and their relationships with the volcanism in the Agua de la Zorra Formation, Mendoza Province, Argentina
title_sort triassic plants and their relationships with the volcanism in the agua de la zorra formation, mendoza province, argentina
url http://hdl.handle.net/20.500.12110/paper_00027014_v48_n2_p177_Ottone
work_keys_str_mv AT ottoneeg triassicplantsandtheirrelationshipswiththevolcanismintheaguadelazorraformationmendozaprovinceargentina
AT avellanedad triassicplantsandtheirrelationshipswiththevolcanismintheaguadelazorraformationmendozaprovinceargentina
AT koukharskym triassicplantsandtheirrelationshipswiththevolcanismintheaguadelazorraformationmendozaprovinceargentina
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