Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system
Laurentia, the rift-bounded Precambrian nucleus of North America, may have broken out from a Neoproterozoic supercontinent between East and West Gondwana. Several lines of evidence suggest that the Appalachian margin of Laurentia subsequently collided with the proto-Andean margin of the amalgamated...
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Formato: | Articulo |
Lenguaje: | Inglés |
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1994
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/123067 |
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I19-R120-10915-123067 |
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record_format |
dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Geología Geology Paleozoic Craton Paleontology Precambrian Paleomagnetism Unconformity Laurentia Supercontinent Gondwana |
spellingShingle |
Geología Geology Paleozoic Craton Paleontology Precambrian Paleomagnetism Unconformity Laurentia Supercontinent Gondwana Dalziel, Ian W. D. Dalla Salda, Luis Hugo Gahagan, Lisa M. Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system |
topic_facet |
Geología Geology Paleozoic Craton Paleontology Precambrian Paleomagnetism Unconformity Laurentia Supercontinent Gondwana |
description |
Laurentia, the rift-bounded Precambrian nucleus of North America, may have broken out from a Neoproterozoic supercontinent between East and West Gondwana. Several lines of evidence suggest that the Appalachian margin of Laurentia subsequently collided with the proto-Andean margin of the amalgamated Gondwana supercontinent in different relative positions during early and mid-Paleozoic time, in route to final docking against northwest Africa to complete the assembly of Pangea. Hence the Appalachian and Andean orogens may have originated as a single mountain system. The overall hypothesis retains the same paleomagnetic and paleobiogeographic controls as previous global reconstructions for the Paleozoic Era. Laurentia-Gondwana collisions may help to explain contemporaneous unconformities in the Paleozoic sedimentary cover of the Laurentian, Gondwanan, and Baltic cratons. |
format |
Articulo Articulo |
author |
Dalziel, Ian W. D. Dalla Salda, Luis Hugo Gahagan, Lisa M. |
author_facet |
Dalziel, Ian W. D. Dalla Salda, Luis Hugo Gahagan, Lisa M. |
author_sort |
Dalziel, Ian W. D. |
title |
Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system |
title_short |
Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system |
title_full |
Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system |
title_fullStr |
Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system |
title_full_unstemmed |
Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system |
title_sort |
paleozoic laurentia-gondwana interaction and the origin of the appalachian-andean mountain system |
publishDate |
1994 |
url |
http://sedici.unlp.edu.ar/handle/10915/123067 |
work_keys_str_mv |
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bdutipo_str |
Repositorios |
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1764820449668104193 |