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Spectral reflectance properties (0.4-2.5 μm) of secondary Fe-oxide, Fe-hydroxide, and Fe-sulphate-hydrate minerals associated with sulphide-bearing mine wastes

Geochemistry: Exploration, Environment, Analysis

By:
, , , , , and
DOI: 10.1144/1467-7873/03-001

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Abstract

Diffuse reflectance spectra of 15 mineral species commonly associated with sulphide-bearing mine wastes show diagnostic absorption bands related to electronic processes involving ferric and/or ferrous iron, and to vibrational processes involving water and hydroxyl. Many of these absorption bands are relatively broad and overlapping; however, spectral analysis methods, including continuum removal and derivative analysis, permit most of the minerals to be distinguished. Key spectral differences between the minerals are illustrated in a series of plots showing major absorption band centres and other spectral feature positions. Because secondary iron minerals are sensitive indicators of pH, Eh, relative humidity, and other environmental conditions, spectral mapping of mineral distributions promises to have important application to mine waste remediation studies.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Spectral reflectance properties (0.4-2.5 μm) of secondary Fe-oxide, Fe-hydroxide, and Fe-sulphate-hydrate minerals associated with sulphide-bearing mine wastes
Series title:
Geochemistry: Exploration, Environment, Analysis
DOI:
10.1144/1467-7873/03-001
Volume
3
Issue:
3
Year Published:
2003
Language:
English
Publisher:
Geological Society of London
Description:
10 p.
First page:
219
Last page:
228
Online Only (Y/N):
N
Additional Online Files(Y/N):
N