2026-07-01T03:25:04Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1183182025-03-18T13:16:34Zcom_20.500.14352_14col_20.500.14352_15
Zeolitas (clinoptilolita-analcima-filipsita) en depósitos piroclásticos miocenos del borde de la Caldera de Tejeda (Gran Canaria, Islas Canarias)
García del Cura, M. A.
La Iglesia, A.
Ordóñez Delgado, Salvador
549.67(460.412)"628.42"
Zeolitas
Clinoptilolita
Analcima
Filipsita
"Azulejos"
Gran Canaria
Islas Canarias
Mineralogía (Geología)
2506.11 Mineralogía
This paper deals with the chemical and mineralogical composition of the Miocene blue-green tuffs (regionally called “azulejos”) from the western border of the Caldera de Tejeda (Gran Canaria). Petrographic observation, X ray diffraction, scanning (SEM) and transmission electron microscopy (TEM), thermal analysis and chemical determinations by both X ray fluorescence and EDAX microanalyser adapted to SEM allow identification of the following minerals: feldspars (mainly anorthoclase) , mica, dolomite, quartz, cristobalite, clay minerals (smectite and corrensite), and the zeolites: clinoptilolite, analcime and phillipsite. The arrangement of these minerals along with the Fe-rich dolomite and Ca-poor character of clinoptilolite support a genetic pattern of the zeolites by moderately hot waters (possible convective cells) in which meteoric waters were heated.
Depto. de Mineralogía y Petrología
Fac. de Ciencias Geológicas
TRUE
pub
2025-02-26T08:31:57Z
2025-02-26T08:31:57Z
1999
journal article
VoR
https://hdl.handle.net/20.500.14352/118318
0214-2708
spa
García del Cura, M.A., La Iglesia Fernández, A. y Ordóñez Delgado, S. (1999): «Zeolitas (clinoptilolita-analcima-filipsita) en depósitos piroclásticos miocenos del borde de la Caldera de Tejeda (Gran Canaria, Islas Canarias)», Revista de la Sociedad Geológica de España, 12(2), pp. 229-240.
open access
application/pdf
Sociedad Geológica de España