Zeolitización de rocas andesíticas

The study of some andesites from King George Island (South Shetland Islands, Anctartica) has pointed out the existence of a hydrothermal alteration process going rise to a zeolitic secondary minerals of low-temperature assemblages. Two paragenesis have been identified (Smectite-Bytownite-Mordenite,...

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Bibliographic Details
Published in:Estudios Geológicos
Main Authors: Queralt, l., Martí, J., Solé, A., Plana, F.
Format: Article in Journal/Newspaper
Language:Spanish
Published: Consejo Superior de Investigaciones Científicas 1989
Subjects:
zeolites
hydrothermal alteration
andesites
zeolitas
alteración hidrotermal
andesitas
Baja
King George Island
Rocas
Shetland del Sur
South Shetland Islands
Antártida
Online Access:http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/501
https://doi.org/10.3989/egeol.89455-6501
Description
Summary:The study of some andesites from King George Island (South Shetland Islands, Anctartica) has pointed out the existence of a hydrothermal alteration process going rise to a zeolitic secondary minerals of low-temperature assemblages. Two paragenesis have been identified (Smectite-Bytownite-Mordenite, Smectite-Albite-Laumontite) which reflecting different conditions durign the hydrothermal alteration of these andesitic rocks El estudio de rocas andesíticas de la Isla King George (Archipiélago de las Shetland del Sur, Antártida) pone de manifiesto la existencia de procesos de alteración hidrotermal con la formación de minerales zeolíticos secundarios pertenecientes a asociaciones de baja temperatura. Se han identificado dos paragénesis (Esmectitas-Bytownita-Mordenita, Esmectitas-AlbitaLaumontita) que reflejan distintas condiciones durante la alteración hidrotermal de dichas rocas andesíticas.

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