Richard Lee Armstrong

Richard Lee "Dick" Armstrong (August 4, 1937 – August 9, 1991) was an American/Canadian scientist who was an expert in the fields of radiogenic isotope geochemistry and geochronology, geochemical evolution of the earth, geology of the American Cordillera, and large-magnitude crustal extension. He published over 170 scientific papers.

Armstrong was born in Seattle, Washington. Provided by Wikipedia
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