Did the Taconic Appalachians continue into southern South America

Autores
Dalla Salda, Luis Hugo; Dalziel, Ian W. D.; Cingolani, Carlos Alberto; Varela, Ricardo
Año de publicación
1992
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Appalachian Mountains, now terminating abruptly at the Gulf of Mexico coastal plain, may have formerly continued into southern South America. Rocks forming the basement of the Argentine Andes can be interpreted as remnants of an early Paleozoic orogen, the Famatinian belt, not unlike the Taconic Appalachians. Both orogens are bordered to the west (present coordinates) by lower Paleozoic carbonate platforms bearing the Olenellid trilobite fauna that is characteristic of Laurentia. Paleomagnetic and geologic data indicate that they could have formed as one continuous mountain chain, possibly extending into Antarctica, during Ordovician closure of an ocean basin ("southern" Iapetus) between Laurentia and Gondwana. The Taconic and Famatinian segments of the chain may have been truncated during Late Ordovician separation of Laurentia and Gondwana along the preexisting (late Neoproterozoic to Cambrian) rift system that initiated formation of the Ouachita embayment and the southern margin of North America.
Centro de Investigaciones Geológicas
Materia
Geología
Appalachians
Paleozoic orogen
Gondwana
South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/137929
Acceder
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network_name_str SEDICI (UNLP)
spelling Did the Taconic Appalachians continue into southern South AmericaDalla Salda, Luis HugoDalziel, Ian W. D.Cingolani, Carlos AlbertoVarela, RicardoGeologíaAppalachiansPaleozoic orogenGondwanaSouth AmericaThe Appalachian Mountains, now terminating abruptly at the Gulf of Mexico coastal plain, may have formerly continued into southern South America. Rocks forming the basement of the Argentine Andes can be interpreted as remnants of an early Paleozoic orogen, the Famatinian belt, not unlike the Taconic Appalachians. Both orogens are bordered to the west (present coordinates) by lower Paleozoic carbonate platforms bearing the Olenellid trilobite fauna that is characteristic of Laurentia. Paleomagnetic and geologic data indicate that they could have formed as one continuous mountain chain, possibly extending into Antarctica, during Ordovician closure of an ocean basin ("southern" Iapetus) between Laurentia and Gondwana. The Taconic and Famatinian segments of the chain may have been truncated during Late Ordovician separation of Laurentia and Gondwana along the preexisting (late Neoproterozoic to Cambrian) rift system that initiated formation of the Ouachita embayment and the southern margin of North America.Centro de Investigaciones Geológicas1992info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1059-1062http://sedici.unlp.edu.ar/handle/10915/137929enginfo:eu-repo/semantics/altIdentifier/issn/0091-7613info:eu-repo/semantics/altIdentifier/issn/1943-2682info:eu-repo/semantics/altIdentifier/doi/10.1130/0091-7613(1992)020<1059:DTTACI>2.3.CO;2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:24:10Zoai:sedici.unlp.edu.ar:10915/137929Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:24:11.007SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Did the Taconic Appalachians continue into southern South America
title Did the Taconic Appalachians continue into southern South America
spellingShingle Did the Taconic Appalachians continue into southern South America
Dalla Salda, Luis Hugo
Geología
Appalachians
Paleozoic orogen
Gondwana
South America
title_short Did the Taconic Appalachians continue into southern South America
title_full Did the Taconic Appalachians continue into southern South America
title_fullStr Did the Taconic Appalachians continue into southern South America
title_full_unstemmed Did the Taconic Appalachians continue into southern South America
title_sort Did the Taconic Appalachians continue into southern South America
dc.creator.none.fl_str_mv Dalla Salda, Luis Hugo
Dalziel, Ian W. D.
Cingolani, Carlos Alberto
Varela, Ricardo
author Dalla Salda, Luis Hugo
author_facet Dalla Salda, Luis Hugo
Dalziel, Ian W. D.
Cingolani, Carlos Alberto
Varela, Ricardo
author_role author
author2 Dalziel, Ian W. D.
Cingolani, Carlos Alberto
Varela, Ricardo
author2_role author
author
author
dc.subject.none.fl_str_mv Geología
Appalachians
Paleozoic orogen
Gondwana
South America
topic Geología
Appalachians
Paleozoic orogen
Gondwana
South America
dc.description.none.fl_txt_mv The Appalachian Mountains, now terminating abruptly at the Gulf of Mexico coastal plain, may have formerly continued into southern South America. Rocks forming the basement of the Argentine Andes can be interpreted as remnants of an early Paleozoic orogen, the Famatinian belt, not unlike the Taconic Appalachians. Both orogens are bordered to the west (present coordinates) by lower Paleozoic carbonate platforms bearing the Olenellid trilobite fauna that is characteristic of Laurentia. Paleomagnetic and geologic data indicate that they could have formed as one continuous mountain chain, possibly extending into Antarctica, during Ordovician closure of an ocean basin ("southern" Iapetus) between Laurentia and Gondwana. The Taconic and Famatinian segments of the chain may have been truncated during Late Ordovician separation of Laurentia and Gondwana along the preexisting (late Neoproterozoic to Cambrian) rift system that initiated formation of the Ouachita embayment and the southern margin of North America.
Centro de Investigaciones Geológicas
description The Appalachian Mountains, now terminating abruptly at the Gulf of Mexico coastal plain, may have formerly continued into southern South America. Rocks forming the basement of the Argentine Andes can be interpreted as remnants of an early Paleozoic orogen, the Famatinian belt, not unlike the Taconic Appalachians. Both orogens are bordered to the west (present coordinates) by lower Paleozoic carbonate platforms bearing the Olenellid trilobite fauna that is characteristic of Laurentia. Paleomagnetic and geologic data indicate that they could have formed as one continuous mountain chain, possibly extending into Antarctica, during Ordovician closure of an ocean basin ("southern" Iapetus) between Laurentia and Gondwana. The Taconic and Famatinian segments of the chain may have been truncated during Late Ordovician separation of Laurentia and Gondwana along the preexisting (late Neoproterozoic to Cambrian) rift system that initiated formation of the Ouachita embayment and the southern margin of North America.
publishDate 1992
dc.date.none.fl_str_mv 1992
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/137929
url http://sedici.unlp.edu.ar/handle/10915/137929
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0091-7613
info:eu-repo/semantics/altIdentifier/issn/1943-2682
info:eu-repo/semantics/altIdentifier/doi/10.1130/0091-7613(1992)020<1059:DTTACI>2.3.CO;2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
1059-1062
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
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collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
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institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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