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Spectral reflectance of carbonatites and related alkalic igneous rocks: selected samples from four North American localities.

Economic Geology

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Abstract

Laboratory spectra in the 0.4-2.5 mu m wavelength range are reported and discussed for 1 cm2 samples of carbonatites and associated rocks from Mountain Pass, California; Oka, Quebec; Iron Hill, Colorado; and Gem Park, Colorado. The carbonatites showed carbonate, iron, and - locally - REE absorption bands. Reflectance measurements are notably sensitive to inherent compositional variations and to the effects of weathering and iron staining, but are useful for detecting high REE contents, and possibly in remote sensing applications, for detecting carbonatite bodies.-G.J.N.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Spectral reflectance of carbonatites and related alkalic igneous rocks: selected samples from four North American localities.
Series title:
Economic Geology
Volume
81
Issue:
4
Year Published:
1986
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
857
Last page:
871
Number of Pages:
15