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Procesos de transformación y neoformación de esmectitas en los materiales volcanoclásticos de la Isla de la Palma (Canarias)

Vegas Salamanca, Juana and García Romero, Emilia and Marfil, Rafaela (1999) Procesos de transformación y neoformación de esmectitas en los materiales volcanoclásticos de la Isla de la Palma (Canarias). Geogaceta, 25 . pp. 207-210. ISSN 0213-683X

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Abstract

Clay minerals from the volcaniclastic deposits of the three different sedimentary settings (paleosols
continental lacustrine and transitional fan delta) have been studied by X-ray, MEB y TEM. The clay fraction
of Ihis sediments consist largely of smectite (saponite) with minor irregular chlorile-smectite mixed layers
and illite: they occur as replacement of ferromagnesian minerals, plagioclase microlites and glass matrix of
the volcarenite and they are inferred to be direct diagenetic alteratíon products of volcanic components.


Item Type:Article
Uncontrolled Keywords:Smectite, Saponite, Volcaniclastic deposits, Diagenetic alteration, Caldera de Taburienle, La Palma, Canary Islands
Subjects:Sciences > Geology > Mineralogy
ID Code:13384
Deposited On:11 Oct 2011 12:10
Last Modified:11 Oct 2011 12:10

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