Publication Date:
2011-08-19
Description:
Alluvial fans have been mapped in Death Valley, California using NASA's 8-12 micron six-channel airborne Thermal Infrared Multispectral Scanner (TIMS). Both composition and relative age differences were recognized. Age unit boundries are generally consistent with those obtained by conventional mapping. Composition was verified by field investigation and comparison with existing geologic maps. Bedrock and its young derived fan gravels have similar emissivities. The original composition of the fans is modified by differential erosion and weathering, permitting relative age mapping with TIMS.
Keywords:
EARTH RESOURCES AND REMOTE SENSING
Type:
Geophysical Research Letters (ISSN 0094-8276); 11; 1153-115
Format:
text