Paleomagnetic evidence of an early Paleozoic rotated terrane in Northwest Argentina; a clue for Gondwana-Laurentia interaction?

Paleomagnetic results from three Lower Ordovician units in northwest Argentina are reported. When assessed with available geologic evidence, these data permit the definition of the Puna Oriental-Famatina rotated terrane. Paleogeographic reconstructions based on these paleomagnetic results place Puna...

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Published in:Geology (Boulder) 1996-10, Vol.24 (10), p.953-956
Main Authors: Conti, C. M, Rapalini, A. E, Coira, B, Koukharsky, M
Format: Article
Language:English
Subjects:
Argentina
Catamarca Argentina
continental drift
Geology
Gondwana
IGCP
La Rioja Argentina
Laurentia
Lower Ordovician
lower Paleozoic
Magnetism
Ordovician
paleogeography
paleomagnetism
Paleontology
Paleozoic
Puna
rotation
South America
Stratigraphy
terranes
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container_issue 10
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container_title Geology (Boulder)
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creator Conti, C. M
Rapalini, A. E
Coira, B
Koukharsky, M
description Paleomagnetic results from three Lower Ordovician units in northwest Argentina are reported. When assessed with available geologic evidence, these data permit the definition of the Puna Oriental-Famatina rotated terrane. Paleogeographic reconstructions based on these paleomagnetic results place Puna Oriental-Famatina in the South Iapetus ocean, close to the Gondwana margin and near some of the Lower-Middle Ordovician Central Mobile belt terranes of the Northern Appalachians. The accretion of Puna Oriental-Famatina may have resulted from the closure of this ocean in Middle Ordovician time.
doi_str_mv 10.1130/0091-7613(1996)024<0953:PEOAEP>2.3.CO;2
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1943-2682
language eng
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source GeoScienceWorld
subjects Argentina
Catamarca Argentina
continental drift
Geology
Gondwana
IGCP
La Rioja Argentina
Laurentia
Lower Ordovician
lower Paleozoic
Magnetism
Ordovician
paleogeography
paleomagnetism
Paleontology
Paleozoic
Puna
rotation
South America
Stratigraphy
terranes
title Paleomagnetic evidence of an early Paleozoic rotated terrane in Northwest Argentina; a clue for Gondwana-Laurentia interaction?
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