SPECTRAL REFLECTANCE OF THE CARBONATITE COMPLEXES AT MOUNTAIN PASS, CALIFORNIA AND IRON HILL, COLORADO.
By: Lawrence C. Rowan, Williams Collins, Marguerite J. Kingston, and James K. Crowley
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Abstract
This paper describes the distinctive spectral reflectance of these two carbonatites and their related rocks, and also discusses the possible use of spectral reflectance measurements for exploring carbonatites. Laboratory spectra recorded in the 0. 4-2. 5 micrometer wavelength range showed absorption features discussed in the abstract. High spectral-resolution airborne radiance measurements were obtained in the 0. 4-1. 0 micrometer and 2. 0-2. 5 micrometer wavelength ranges. Preliminary analysis of the airborne measurements at Mountain Pass showed neodymium-absorption bands over the mining area and in several undisturbed areas of carbonatite. The results indicate that spectral reflectance measurements may provide a rapid laboratory method for determining the presence of anomalously high rare earth (RE) content, and possibly, for estimating relative amounts of certain RE elements.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | SPECTRAL REFLECTANCE OF THE CARBONATITE COMPLEXES AT MOUNTAIN PASS, CALIFORNIA AND IRON HILL, COLORADO. |
| Year Published | 1984 |
| Language | English |
| Publisher | Environmental Research Inst of Michigan |
| Publisher location | Ann Arbor, MI, USA |
| First page | 217 |
| Last page | 218 |
| Conference Title | Proceedings of the International Symposium on Remote Sensing of Environment, Third Thematic Conference: Remote Sensing for Exploration Geology. |
| Conference Location | Colorado Springs, CO, USA |
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