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Abstract:

We report on the source of pumice found on beaches of Tierra del Fuego (Argentina) and the South Shetland Islands (Antarctica), north and south of the Drake Passage. Petrological studies, chemical analyses and experiments on this pumice indicate it is most likely from a 1962 submarine eruption in the South Sandwich Islands. Previous work stated that clockwise marine currents carried such pumice as far as Tasmania. Our findings show that the currents continued to transport the pumice to Drake Passage, nearly completing a circuit around Antarctica, and up to southern Argentina showing that this material can follow complex pathways for more than 20 000 km. © 2002 Elsevier Science B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Presence of large pumice blocks on Tierra del Fuego and South Shetland islands shorelines, from 1962 South Sandwich Islands eruption
Autor:Risso, C.; Scasso, R.A.; Aparicio, A.
Filiación:Universidad de Buenos Aires, Departamento de Geología, Ciudad Universitaria-Pabellón 2, Avda. Intendente Cantilo s/n, Ciudad de Buenos Aires, 1428, Argentina
Universidad de Buenos Aires, Departamento de Geología, Ciudad Universitaria-Pabellón 2, Avda. Intendente Cantilo s/n, Ciudad de Buenos Aires, 1428, Argentina
Museo Nacional de Ciencias Naturales-CSIC, Departamento de Volcanología, José Gutierrez Abascal 2, 28006 Madrid, Spain
Palabras clave:Antarctic Circumpolar Current; Oceanic currents; Protector Shoal; Pumice; Submarine volcanic eruption; Submarine eruption; Abrasives; Beaches; Submarine geology; oceanic current; petrology; pumice; submarine volcano; transport process; Antarctica; Argentina
Año:2002
Volumen:186
Número:3-4
Página de inicio:413
Página de fin:422
DOI: http://dx.doi.org/10.1016/S0025-3227(02)00190-1
Título revista:Marine Geology
Título revista abreviado:Mar. Geol.
ISSN:00253227
CODEN:MAGEA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253227_v186_n3-4_p413_Risso

Referencias:

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Citas:

---------- APA ----------
Risso, C., Scasso, R.A. & Aparicio, A. (2002) . Presence of large pumice blocks on Tierra del Fuego and South Shetland islands shorelines, from 1962 South Sandwich Islands eruption. Marine Geology, 186(3-4), 413-422.
http://dx.doi.org/10.1016/S0025-3227(02)00190-1
---------- CHICAGO ----------
Risso, C., Scasso, R.A., Aparicio, A. "Presence of large pumice blocks on Tierra del Fuego and South Shetland islands shorelines, from 1962 South Sandwich Islands eruption" . Marine Geology 186, no. 3-4 (2002) : 413-422.
http://dx.doi.org/10.1016/S0025-3227(02)00190-1
---------- MLA ----------
Risso, C., Scasso, R.A., Aparicio, A. "Presence of large pumice blocks on Tierra del Fuego and South Shetland islands shorelines, from 1962 South Sandwich Islands eruption" . Marine Geology, vol. 186, no. 3-4, 2002, pp. 413-422.
http://dx.doi.org/10.1016/S0025-3227(02)00190-1
---------- VANCOUVER ----------
Risso, C., Scasso, R.A., Aparicio, A. Presence of large pumice blocks on Tierra del Fuego and South Shetland islands shorelines, from 1962 South Sandwich Islands eruption. Mar. Geol. 2002;186(3-4):413-422.
http://dx.doi.org/10.1016/S0025-3227(02)00190-1