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Richard Lee Armstrong

Richard Lee 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. Provided by Wikipedia

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K-Ar dating: Late Cenozoic McMurdo Volcanic Group and dry valley glacial history, Victoria Land, Antarctica

by Armstrong, Richard Lee
Published in New Zealand Journal of Geology and Geophysics (1978)

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Glaciation in Taylor Valley, Antarctica, Older Than 2.7 Million Years

by Armstrong, Richard Lee, Hamilton, Warren, Denton, George H.
Published in Science (1968)

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3

Age and stratigraphic–tectonic significance of Proterozoic diabase sheets, Mackenzie Mountains, northwestern Canada

by Armstrong, Richard Lee, Eisbacher, G. H., Evans, Paul D.
Published in Canadian Journal of Earth Sciences (1982)

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