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Infrared and Mossbauer study of Brazilian tourmalines from different geological environments

Ester Figueiredo de Oliveira, Cristiane Castaneda, Sigrid Griet Eeckhout, Messias Menezes Gilmar, Rogerio Ribeiro Kwitko, Eddy de Grave and Nilson Francisquini Botelho
Infrared and Mossbauer study of Brazilian tourmalines from different geological environments
American Mineralogist (September 2002) 87 (8-9): 1154-1163

Abstract

Infrared (IR) spectra in the OH stretching region and Mossbauer spectra (MS) have been acquired for natural tourmalines from magmatic and hydrothermal deposits in the state of Minas Gerais, Brazil. In the magmatic environment, samples of tourmaline were collected from granitic pegmatites and granitoids. In the former, the elbaite-schorl series is prevalent, while in the latter the schorl species is dominant. Tourmalines from hydrothermal gold deposits are typically intermediate members of the dravite-schorl series, whereas the uvite and Fe-bearing uvite species are present in tourmaline samples from a magnesite deposit. Different behaviors are discussed in terms of local lattice environment, geological history, fluid/rock interaction or magma evolution, and degree of crystallinity.


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 87
Serial Issue: 8-9
Title: Infrared and Mossbauer study of Brazilian tourmalines from different geological environments
Affiliation: Comissao Nacional de Energia Nuclear, C.D.T.N., Belo Horizonte, Brazil
Pages: 1154-1163
Published: 200209
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 45
Accession Number: 2002-067172
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 tables
S23°30'00" - S14°00'00", W51°00'00" - W39°45'00"
Secondary Affiliation: Universidade de Brazilia, BRA, BrazilGhent University, BEL, BelgiumUniversidade Federal de Ouro Preto, BRA, BrazilCompanhia Vale do Rio Doce, BRA, Brazil
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200221
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