Did the Taconic Appalachians continue into southern South America

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...

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Detalles Bibliográficos
Autores principales: Dalla Salda, Luis Hugo, Dalziel, Ian W. D., Cingolani, Carlos Alberto, Varela, Ricardo
Formato: Articulo
Lenguaje:Inglés
Publicado: 1992
Materias:
Geología
Appalachians
Paleozoic orogen
Gondwana
South America
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/137929
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-137929
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
Appalachians
Paleozoic orogen
Gondwana
South America
spellingShingle Geología
Appalachians
Paleozoic orogen
Gondwana
South America
Dalla Salda, Luis Hugo
Dalziel, Ian W. D.
Cingolani, Carlos Alberto
Varela, Ricardo
Did the Taconic Appalachians continue into southern South America
topic_facet Geología
Appalachians
Paleozoic orogen
Gondwana
South America
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.
format Articulo
Articulo
author Dalla Salda, Luis Hugo
Dalziel, Ian W. D.
Cingolani, Carlos Alberto
Varela, Ricardo
author_facet Dalla Salda, Luis Hugo
Dalziel, Ian W. D.
Cingolani, Carlos Alberto
Varela, Ricardo
author_sort Dalla Salda, Luis Hugo
title Did the Taconic Appalachians continue into southern 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
publishDate 1992
url http://sedici.unlp.edu.ar/handle/10915/137929
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AT cingolanicarlosalberto didthetaconicappalachianscontinueintosouthernsouthamerica
AT varelaricardo didthetaconicappalachianscontinueintosouthernsouthamerica
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