Zeolites in hydromagmatic volcanoes. A case study of montaña Escachada (Tenerife)

  1. J.S.Notario del Pino 1
  2. J.A Rodríguez Losada 1
  3. l. Queralt Mitjans 2
  4. J.E. García Hernández. 1
  1. 1 Departamento de Edafología y Geología, Universidad de La Laguna. Tenerife
  2. 2 Instituto de Ciencias de la TierraJaume A/mera (CSIC), Barcelona
Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 1996

Issue: 20

Pages: 525-528

Type: Article

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Abstract

The different types of zeolites occurring in the hydromagmatic va/cano called Montaña Escachada or Montaña Pelada (Southern Tenerife), have been studied. The instrumental techniques of study include X-ray diffraction, scanning e/ectron microscopy, X-ray f/uorescence and microprobe analysis. Phillipsite and analcime were detected in amounts inversely proportional from the basis (more phillipsite) to the top (more analcime) of the va/cano. A selective enrichment of the phillipsite in potassium and of the analcime in sodium was a/so observed. The abundance and the genesis of these zeo/ites are related to the eruptive mechanism and the physico-chemica/ conditions of the zone. Their formation is, in high degree, irrespective of the composition of the parent magma.

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