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April 24, 1977

Mapping of hydrothermal alteration in the Cuprite mining district, Nevada, using aircraft scanner images for the spectral region 0.46 to 2.36µm

Color composites of Landsat Multispectral Scanner ratio images that display variations in the intensity of ferric-iron absorption bands are highly effective for mapping limonitic altered rocks but are ineffective for mapping nonlimonitic altered rocks. Analysis of 0.45- to 2.5-µm field and laboratory spectra shows that iron-deficient opalized rocks in the Cuprite mining district, Nevada, have an i

Authors

M. J. Adams, Roger P. Ashley, L. C. Rowan, A. F. H. Goetz, A.B. Kahle

Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

January 1, 1972