| Abstract: | Emittance spectra in the 7.5 ??m to 14 ??m wavelength region and chemical compositions of 26 igneous rocks are reported. Experimental measurements on the rocks were made under simulated daytime field conditions. Some surface silicate contaminants, such as clayey silt, significantly altered the spectral emittance of a fresh sample, whereas, for these samples, hydrous and anhydrous ferric oxide weathering products did not mask important silicate spectral information. In the 11.75 ??m to 13.75 ??m wavelength region, the mean emittance of all the silicate samples was 0.956 ?? 0.008, except for periodtite, which had an average emittance of 0.895. This region of uniform emittance should be useful in remote sensing experiments for the separation of the effects of temperature and chemical composition on the spectral emittance of silicate rocks. ?? 1976. |
| Genre: | Article |
| ProdID: | 70010074 |
| Citation Author: | Vincent, R. K.; Rowan, L. C.; Gillespie, R. E.; Knapp, C. |
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| Citation End Page: | 209 |
| Citation Issue: | C |
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| Citation Language: | English |
| Citation Larger Work Title: | Remote Sensing of Environment |
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| Citation Number Of Pages: | 11 |
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| Citation Search Results Text: | Thermal-infrared spectra and chemical analyses of twenty-six igneous rock samples; 1975; Article; Journal; Remote Sensing of Environment; Vincent, R. K.; Rowan, L. C.; Gillespie, R. E.; Knapp, C. |
| Citation Start Page: | 199 |
| Citation Volume: | 4 |
| Citation Year: | 1975 |
| Type: | citation/reference |
| Text: | Thermal-infrared spectra and chemical analyses of twenty-six igneous rock samples; 1975; Article; Journal; Remote Sensing of Environment; Vincent, R. K.; Rowan, L. C.; Gillespie, R. E.; Knapp, C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1975 00:00 -0600 |
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