Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan mountains, Colorado

Online link http://pubs.usgs.gov/of/1999/ofr-99-0347/
Description New age determinations with descriptions of sample locations and analytical details.
Originators Bove, Dana J.; Hon, Ken; Budding, Karin E.; Slack, John F.; Snee, Lawrence W.; and Yeoman, Ross A.
Publication U.S. Geological Survey Open-File Report 99-347

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