John D. Obradovich
U.S. Geological Survey, Denver, CO
Activity
2012
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THE CRETACEOUS TIME SCALE: PROGRESS AND PROSPECTS FROM RADIOISOTOPIC DATING AND ASTROCHRONOLOGY
T250 Geologic Timescale—Current Status, Future Enhancement, and Applications (Posters)Wednesday, 7 November 20129:00 AM - 6:00 PMHall B
2011
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COUPLING ORBITAL AND RADIOISOTOPIC CHRONOMETERS: LESSONS LEARNED FROM THE CRETACEOUS WESTERN INTERIOR BASIN (U.S.A.)
T237 EARTHTIME Geochronology: Improving Age Interpretations through Integration and IntercalibrationWednesday, 12 October 20118:00 AM - 12:00 PMRoom 102D-F
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A CRETACEOUS TO PLEISTOCENE PERSPECTIVE ON INTERCALIBRATING 40Ar/39Ar AND U-PB RADIOISOTOPIC CLOCKS
T237 EARTHTIME Geochronology: Improving Age Interpretations through Integration and IntercalibrationWednesday, 12 October 20118:00 AM - 12:00 PMRoom 102D-F
2010
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40Ar/39Ar AND U-PB DATING OF THE CRETACEOUS NIOBRARA FORMATION
T160 Geochronology of the American West: In Honor of the Careers of Bill Cobban and John Obradovich and the Roots of EARTHTIMETuesday, 2 November 20108:00 AM - 12:00 PMRoom 205
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INTEGRATING RADIOISOTOPIC AND ASTROCHRONOLOGIC TIME SCALES FOR THE CRETACEOUS
T160 Geochronology of the American West: In Honor of the Careers of Bill Cobban and John Obradovich and the Roots of EARTHTIMETuesday, 2 November 20108:00 AM - 12:00 PMRoom 205
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REDUCING ERROR BARS THROUGH THE INTERCALIBRATION OF RADIOISOTOPIC AND ASTROCHRONOLOGIC TIME SCALES FOR THE CENOMANIAN/TURONIAN BOUNDARY INTERVAL, WESTERN INTERIOR BASIN, USA
T160 Geochronology of the American West: In Honor of the Careers of Bill Cobban and John Obradovich and the Roots of EARTHTIMETuesday, 2 November 20108:00 AM - 12:00 PMRoom 205
2009
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IMPLICATIONS OF NEW 40Ar/39Ar AND U-PB AGES FOR CENOMANIAN-TURONIAN OAE2
T160 EARTHTIME: From Developing Tools to Teaching about TimeTuesday, 20 October 20098:00 AM - 12:00 PMC123
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A MAP DATABASE OF ISOTOPICALLY DATED CRETACEOUS BENTONITE LOCALITIES IN THE WESTERN INTERIOR U.S
T101 Geologic Maps, Digital Geologic Maps, Geophysical Maps, and Derivatives from Geologic Maps (Posters)Monday, 19 October 20099:00 AM - 6:00 PMHall A