| Abstract: | Airborne multispectral scanner images recorded in the 0.46 to 2.36 micrometre region for the E Tintic mining district, Utah, were evaluated to determine their usefulness for distinguishing six types of hydrothermally altered rocks from a wide range of sedimentary and igneous rock types. The laboratory and field evaluation of a color ratio composite image, supported by in situ spectral reflectance measurements and an alteration map compiled from a published map, shows that silicified, argillized, and pyritized rocks can be mapped in detail utilizing an intense OH absorption band centered near 2.2 micrometre. This absorption band is absent or weak in most of the unaltered rocks. -from Authors |
| Genre: | Article |
| ProdID: | 70011632 |
| Citation Author: | Rowan, L. C.; Kahle, A. B. |
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| Citation End Page: | 452 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Economic Geology |
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| Citation Number Of Pages: | 12 |
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| Citation Search Results Text: | Evaluation of 0.46- to 2.36-micrometre multispectral scanner images of the East Tintic mining district, Utah, for mapping hydrothermally altered rocks.; 1982; Article; Journal; Economic Geology; Rowan, L. C.; Kahle, A. B. |
| Citation Start Page: | 441 |
| Citation Volume: | 77 |
| Citation Year: | 1982 |
| Type: | citation/reference |
| Text: | Evaluation of 0.46- to 2.36-micrometre multispectral scanner images of the East Tintic mining district, Utah, for mapping hydrothermally altered rocks.; 1982; Article; Journal; Economic Geology; Rowan, L. C.; Kahle, A. B. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1982 00:00 -0600 |
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