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Micro‐Raman spectroscopic study of El Gasco pumice, western Spain
Author(s) -
Rull F.,
MartinezFrias J.,
RodríguezLosada J. A.
Publication year - 2007
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1628
Subject(s) - ringwoodite , ilmenite , pumice , fayalite , electron microprobe , raman spectroscopy , rutile , magnetite , anatase , mineralogy , geology , quartz , analytical chemistry (journal) , mineral , geochemistry , chemistry , materials science , metallurgy , olivine , environmental chemistry , optics , volcano , paleontology , biochemistry , physics , photocatalysis , catalysis
A micro‐Raman spectroscopic study of pumice materials from El Gasco (Sierra de Gata, Spain) has been performed for the first time. The obtained spectra allow the precise identification of the minerals, quartz, haematite, magnetite, ilmenite, rutile and anatase, in general agreement with results obtained by complementary techniques of X‐Ray Diffraction (XRD) and Electron Microprobe. Also, fayalite and ferroan ringwoodite have been identified. The presence of high‐pressure polymorphs indicates that the pumice rocks were subjected to high‐pressure conditions quite similar to those observed in shock‐induced molten and recrystallised materials, such as some meteorites and impact‐related rocks. Copyright © 2006 John Wiley & Sons, Ltd.