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Society of Economic Geologists Silver Medal for 2003 Citation of John M. Proffett

The first 20% of the full text of this article appears below.

Mr. President, members, and guests: Many years ago, when Anaconda was exploring in the Yerington district in western Nevada, we asked Chuck Meyer if he knew anybody who could make us a good new geologic map of the district. He said he sure did and gave his highest recommendation to a clean-shaven young student by the name of Proffett—this "Proffett" who was raised in the foothills of California’s copper belt and mother lode, had switched from physics to geology in his senior year, and had signed up for graduate work at Berkeley after taking and creaming Chuck’s summer field-mapping course. I was skeptical that anybody could really walk on water as Chuck promised but we hired him to do the job anyhow, and also agreed to let him use the results for a Ph.D. thesis for himself.

I soon began to receive reports from Yerington of flat spoon-shaped faults, and orebodies turned over on their sides! I went to Yerington to see for myself! Proffett took me to a barren ridge and said, "This is where the Singatse fault comes through." There were no outcrops and I asked him to show me some evidence. He reached into his backpack and pulled out an entrenching tool and proceeded to dig a pit and soon exposed a strong fault gouge dipping 12 . . . [Full Text of this Article]