Artículo

Pazos, P.J.; Bettucci, L.S.; Loureiro, J.; Pankhurst R.J.; Trouw R.A.J.; De Brito Neves B.B.; De Wit M.J. "The neoproterozoic glacial record in the Río de la Plata Craton: A critical reappraisal" (2008) Geological Society Special Publication. 294:343-364
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Abstract:

Neoproterozoic glacial successions have been described in South America, but the glacial deposits of the Río de la Plata Craton have been neglected in previous studies addressing the global distribution of glacially influenced successions. The Río de la Plata Craton contains Neoproterozoic glacial deposits in the Sierra del Volcán Formation (Tandilia. System, Argentina), glacial influenced deposits in the Playa Hermosa and Zanja del Tigre formations (Dom Feliciano Belt, Uruguay) and suspected glacially influenced deposits in Passo da Areia (São Gabriel block, Brazil). The Tandilia System glacial record includes diamictites, dropstones and rhythmites deposited in glaciomarine conditions in a tectonically stable depositional setting. The Dom Feliciano Belt includes a thin section with ice-rafted clasts in carbonates and a thicker section containing diamictites, rhythmites, outsized clasts and deformed beds in a volcano-sedimentary succession. The São Gabriel block occurrence deserves more attention to confirm any glacial influence in the fine-grained part of the succession. Glaciation is considered to be contemporaneous with the Gaskiers glaciation (580 Ma), with the exception of the carbonates with dropstones that may represent a previous event correlative with one of the glaciations described in the Kalahari Craton, prior to Kalahari-Río de la Plata assembly in the proto-western Gondwana margin. © The Geological Society of London 2008.

Registro:

Documento: Artículo
Título:The neoproterozoic glacial record in the Río de la Plata Craton: A critical reappraisal
Autor:Pazos, P.J.; Bettucci, L.S.; Loureiro, J.; Pankhurst R.J.; Trouw R.A.J.; De Brito Neves B.B.; De Wit M.J.
Filiación:CONICET-UBA, Dpto. de Ciencias Geológicas, Fac. Cs. Es. y Nat., Pabellón II 1428, Ciudad Autónoma de Buenos Aires, Argentina
Dpto. de Geología, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay
Palabras clave:carbonate rock; clast; conference proceeding; deposition; diamictite; glacial deposit; glaciation; Gondwana; Proterozoic; rhythmite; Brazil; Dom Feliciano Belt; Rio de la Plata; Rio Grande do Sul; South America
Año:2008
Volumen:294
Página de inicio:343
Página de fin:364
DOI: http://dx.doi.org/10.1144/SP294.18
Título revista:Geological Society Special Publication
Título revista abreviado:Geol. Soc. Spec. Publ.
ISSN:03058719
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03058719_v294_n_p343_Pazos

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Citas:

---------- APA ----------
Pazos, P.J., Bettucci, L.S., Loureiro, J., Pankhurst R.J., Trouw R.A.J., De Brito Neves B.B. & De Wit M.J. (2008) . The neoproterozoic glacial record in the Río de la Plata Craton: A critical reappraisal. Geological Society Special Publication, 294, 343-364.
http://dx.doi.org/10.1144/SP294.18
---------- CHICAGO ----------
Pazos, P.J., Bettucci, L.S., Loureiro, J., Pankhurst R.J., Trouw R.A.J., De Brito Neves B.B., et al. "The neoproterozoic glacial record in the Río de la Plata Craton: A critical reappraisal" . Geological Society Special Publication 294 (2008) : 343-364.
http://dx.doi.org/10.1144/SP294.18
---------- MLA ----------
Pazos, P.J., Bettucci, L.S., Loureiro, J., Pankhurst R.J., Trouw R.A.J., De Brito Neves B.B., et al. "The neoproterozoic glacial record in the Río de la Plata Craton: A critical reappraisal" . Geological Society Special Publication, vol. 294, 2008, pp. 343-364.
http://dx.doi.org/10.1144/SP294.18
---------- VANCOUVER ----------
Pazos, P.J., Bettucci, L.S., Loureiro, J., Pankhurst R.J., Trouw R.A.J., De Brito Neves B.B., et al. The neoproterozoic glacial record in the Río de la Plata Craton: A critical reappraisal. Geol. Soc. Spec. Publ. 2008;294:343-364.
http://dx.doi.org/10.1144/SP294.18