E.A. du Bray
U.S. Geological Survey-MS 973, Lakewood, CO
Activity
2019
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ORIGIN OF THE MESOPROTEROZOIC IGNEOUS ROCKS IN THE ST. FRANCOIS MOUNTAINS, MISSOURI, USA
13 Rhyolite/Granite Magmatism ITuesday, 26 March 20198:00 AM - 12:00 PMKonza Prairie Room
2016
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BRINE EXPULSIONS TO PALEOZOIC BASINS: TRIGGER OF CATASTROPHIC GLOBAL CHANGE
T288 The Early Paleozoic World: Radiations, Extinctions, and Paleoenvironmental Change IIWednesday, 28 September 20168:00 AM - 12:00 PMMile High Ballroom 3C
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MAGMATIC-HYDROTHERMAL HISTORIES OF MIOCENE EPITHERMAL GOLD-SILVER DEPOSITS IN THE TONOPAH AND DIVIDE DISTRICTS, WESTERN NEVADA
268 Economic GeologyWednesday, 28 September 20168:00 AM - 12:00 PMRoom 301
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A GLOBAL ASSESSMENT OF REE’S IN SEDIMENTARY PHOSPHATE DEPOSITS
T3 Rare Earth and Critical Elements in Ore DepositsSunday, 25 September 20168:00 AM - 12:00 PMRoom 301
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SULFIDE SATURATION IN MAGMAS ASSOCIATED WITH PRECIOUS METAL DEPOSITION AND QUARTZ-ALUNITE ALTERATION AT GOLDFIELD AND OTHER DISTRICTS IN THE ANCESTRAL CASCADES MAGMATIC ARC, CA-NV
T32 Magmatic-Hydrothermal Ore Deposits: Metal Transport from Source to SinkSunday, 25 September 20161:30 PM - 5:30 PMRoom 301
2009
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SHRIMP U-PB DATING OF RECURRENT CRYOGENIAN AND LATE CAMBRIAN-EARLY ORDOVICIAN ALKALIC MAGMATISM IN CENTRAL IDAHO: IMPLICATIONS FOR RODINIAN RIFT TECTONICS
T232 New Insights Into Development of the Upper Neoproterozoic—Lower Paleozoic Western Laurentian Passive MarginWednesday, 21 October 20098:00 AM - 12:00 PME145
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PETROGENESIS, AGE, AND HYDROTHERMAL ALTERATION OF THE MIOCENE TATOOSH INTRUSIVE SUITE, MOUNT RAINIER NATIONAL PARK
T44 Geology in the National Parks: Research, Mapping, and Education (Posters)Sunday, 18 October 20099:00 AM - 6:00 PMHall A
2008
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MINERAL DEPOSITS RESEARCH REQUIRED FOR THE NEXT NATIONAL MINERAL RESOURCE ASSESSMENT: A COLLABORATIVE OPPORTUNITY
9 Mineralization in the Western United StatesWednesday, 19 March 20081:30 PM - 4:30 PM
Date Unknown
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A NEW WHOLE-ROCK MAJOR-OXIDE AND TRACE-ELEMENT GEOCHEMICAL DATABASE FOR INTRUSIVE ROCKS OF NORTHERN NEVADA: IMPLICATIONS FOR PETROGENESIS AND METALLOGENY
T166 Great Basin Tectonics and Metallogeny (Posters)