Integration of Multiple Data Sets for Resource Evaluation of the Montrose 1 exp 0 X 2 exp 0 Quadrangle, Colorado

摘要

At Los Alamos National Laboratory, geoscientists have assembled and integrated 30 geological, geochemical, and geophysical data sets with 4 Landsat bands for the Montrose 1 exp 0 x 2 exp 0 quadrangle, Colorado. A graphical presentation, which allows three data sets to be viewed simultaneously, is employed to facilitate the interpretation. Analysis of one of the three-data-set combinations (copper, lead, zinc) defines, spatially and geochemically, all the mining districts in the quadrangle and yields new information relating to base and precious metal mineralization. Analysis of two other three-data-set combinations (dysprosium, hafnium, scandium; and potassium, lithium, titanium) indicates that the granites in the Sawatch Range are of different trace-element composition (and therefore, possibly of different origin) than the granites in the Mosquito Range. This technique permits rapid analysis of tremendous amounts of data and the inference of correlative information that is not inherent in single data sets. (ERA citation 07:016005)