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Search results with tag "Geophysical methods"
GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL …
pubs.usgs.govSome geophysical methods, such as gamma-ray spectrometry and remote sensing, measure surface attributes; others, such as thermal and some electrical methods are limited to detecting relatively shallow features but may help identify features at greater depth. Secondary effects of deeper features, such as geochemical haloes, can often be