John W. Valley
University of Wisconsin-Madison, Madison, WI
Activity
2025
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TIMING OF ANORTHOSITE EMPLACEMENT, SKARN FORMATION, AND METEORIC WATER INFILTRATION IN THE WILLSBORO-LEWIS WOLLASTONITE DISTRICT (ADIRONDACK HIGHLANDS, NEW YORK)
2 Petrotectonic Processes in Convergent Margins: Insights from Laurentia and BeyondFriday, 28 March 20258:00 AM - 12:00 PM120
2024
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SIGNALS OF AUTUMN SEASONS TRAPPED IN FRESHWATER PEARL NACRE
T137 Early Career Investigators in Mineralogy and CrystallographyMonday, 23 September 20241:30 PM - 5:30 PM207A
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HOW TO READ THE OXYGEN ISOTOPE SYSTEM IN CORDILLERAN ARCS: LESSONS FROM 190 MILLION YEARS OF SIERRAN MAGMATISM
T71 The Changing Cordilleran Margin: Permian through Eocene Tectonism, Magmatism, and General Geology from Western Mexico through Northern California and EastwardSunday, 22 September 20241:30 PM - 5:30 PM304A
2023
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OXYGEN ISOTOPES IN ZIRCON AND RHYOLITE CHARACTERIZATION FROM ESJUFJÖLL VOLCANO, ICELAND
T186 Mineralogy, Geochemistry, Petrology, and Volcanology Division: Session for Graduate and Undergraduate Students (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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ADVANCING IN-SITU MICROANALYTICAL CALCIUM ISOTOPE GEOCHEMISTRY BY SIMS
T83 Advances in Non-Traditional Stable Isotope Measurements and Utility as Proxies in Modern and Paleo-Settings IMonday, 16 October 20238:00 AM - 12:00 PM335