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,...
Published in: | Estudios Geológicos |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | Spanish |
Published: |
Consejo Superior de Investigaciones Científicas
1989
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Subjects: | |
Online Access: | http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/501 https://doi.org/10.3989/egeol.89455-6501 |
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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