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venues where slot machines are by far the largest component of casino GGRS.
Unlike conventional magnetic, electromagnetic, gravity, and seismic techniques that measure physical rock properties (often in response to induced effects), and that may detect variations from source depths of tens to thousands of metres, AGRS and GGRS measure variations in radioactivity emanating from the top 0.
1995, 1997) present a number of case histories that demonstrate the use of AGRS and GGRS to map potassium alteration associated with different styles of mineralization, including volcanogenic massive sulphides, polymetallic, magmatic-hydrothermal (Au-Co-Cu-Bi-W-As (Olympic Dam-type)), and porphyry Cu-Au-(Mo) deposits.