In 1923 Daniel Barringer, a lawyer-turned-geologist and successful businessman, and Grove Karl Gilbert, U.S. Geological Survey, engaged in a fierce debate about a large hole in the midst of nowhere. Only 37 years later a solution was found.
from Forbes Real Time http://www.forbes.com/sites/davidbressan/2017/07/25/this-mineral-discovery-ended-an-age-old-debate-about-meteor-crater/
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