Harrison Gray
Geosciences and Environmental Change Science Center, Denver, CO
Activity
2025
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PALEOSEISMIC INVESTIGATION OF QUATERNARY-ACTIVE FAULTING IN THE SOUTHWEST MONTEZUMA HILLS, SACRAMENTO - SAN JOAQUIN DELTA REGION, CALIFORNIA
38 Quaternary Geology of the Great Central Valley of California: What Have We Learned in the Past 60 Years? (Posters)Friday, 4 April 20258:00 AM - 4:00 PMRiver/City View
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LATEST PLEISTOCENE DEGLACIATION OF THE MERCED AND TUOLUMNE RIVER LANDSCAPES, YOSEMITE NATIONAL PARK
6 Mysteries of the Sierra Nevada (Posters)Wednesday, 2 April 20258:00 AM - 5:30 PMSierra Ballroom
2024
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REVISITING QUATERNARY FAULTING IN THE CENTRAL RIO GRANDE RIFT
T278 The Rio Grande Rift: Exploring Connections between Deformation, Magmatism, Metamorphism, Sedimentation, Mineralization, and Mantle-to-Surface Processes during Continental ExtensionWednesday, 25 September 20241:30 PM - 5:30 PM304A
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USING SOIL DEVELOPMENT, SEDIMENTARY FACIES, AND LUMINESCENCE CHRONOLOGY TO INTERPRET DEBRIS-FLOW ALLUVIAL FAN DYNAMICS IN THE STRATIGRAPHIC RECORD
T142 Faults and Floods in Western North America: In Memory of the Outstanding Contributions of Dr. Ralph E. KlingerMonday, 23 September 20241:30 PM - 5:30 PM210B
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FROM BEDROCK CANYON TO ALLUVIAL VALLEY: LINKING THE HOLOCENE PALEOFLOOD HISTORY OF THE LOWER COLORADO RIVER BETWEEN GRAND CANYON, ARIZONA, AND NEEDLES, CALIFORNIA
T142 Faults and Floods in Western North America: In Memory of the Outstanding Contributions of Dr. Ralph E. KlingerMonday, 23 September 20241:30 PM - 5:30 PM210B
2023
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DO FAULT SCARPS ACTUALLY "DIFFUSE?"
T221 Sedimentary Archives of Mountain Building from the Fault-Scarp to the Range-Front: Interpreting Colluvial Wedge and Alluvial Fan SystemsWednesday, 18 October 20238:00 AM - 12:00 PM321
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NEW CONSTRAINTS ON THE PLEISTOCENE INCISION AND AGGRADATION HISTORY OF THE LOWER COLORADO RIVER FROM U-TH SERIES DATING OF PEDOGENIC CARBONATES AND LUMINESCENCE DATING OF THE CHEMEHUEVI FORMATION AND BRACKETING UNITS, COTTONWOOD VALLEY, ARIZONA AND NEVADA, USA
36 Graduate Student Research (Posters)Friday, 19 May 20238:00 AM - 6:00 PMCargo Room
2022
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NEW CONSTRAINTS ON THE PLEISTOCENE INCISION HISTORY OF THE LOWER COLORADO RIVER FROM U-TH SERIES DATING OF PEDOGENIC CARBONATES, COTTONWOOD VALLEY, ARIZONA, USA
T253 CR Evolution 2.9: Evolution of the Colorado River System from the Rocky Mountains to the Gulf of CaliforniaWednesday, 12 October 20221:30 PM - 5:30 PM507
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HOW CONSISTENT IS DEPOSITION AT THE BASE OF FAULT SCARPS?
T209 What’s in a Slip Rate? (Posters)Tuesday, 11 October 20222:00 PM - 6:00 PMExhibit Hall F
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HOW CHRONOSTRATIGRAPHIC DATA IMPROVES STREAM CLASSIFICATION IN WHITE CLAY CREEK, PA AND OTHER MID-ATLANTIC WATERSHEDS
T181 Physical and Biological Processes, Interactions, and Restoration in River SystemsTuesday, 11 October 20221:30 PM - 5:30 PM503
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ASPECT, HILLSLOPE PEDOGENESIS, AND THE EMERGENCE OF TOPOGRAPHIC ASYMMETRY
T202 Soils and Geomorphology (Posters): In Memory of Pete BirkelandTuesday, 11 October 20222:00 PM - 6:00 PMExhibit Hall F
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QUANTIFYING MODIFICATIONS IN HOLOCENE ALLUVIAL FAN MORPHOLOGY TO DETERMINE PALEOSEISMICITY OF THE PANAMINT VALLEY TRANSTENSIONAL RELAY (ECSZ)
175 D29. Recent Advances in Quaternary Geology and GeomorphologyTuesday, 11 October 20221:30 PM - 5:30 PM506
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LATE QUATERNARY ACTIVITY OF THE SOUTH GRANITE MOUNTAINS FAULT SYSTEM IN CENTRAL WYOMING: IMPLICATIONS FOR CRYPTIC REACTIVATION OF LARAMIDE FEATURES
29 Cryptic and Slow-Moving Quaternary-Active Faults in the Western United StatesWednesday, 16 March 20221:30 PM - 5:30 PMCBC-A 108
2021
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THE PACE OF DEGLACIATION AND POSTGLACIAL LANDSCAPE RESPONSE IN YOSEMITE VALLEY, CALIFORNIA
8 Understanding the Sierra Nevada Through New Regional Geologic and Geophysical Syntheses IIThursday, 13 May 20218:30 AM - 12:30 PMUNR Centers for Transformative Monitoring Programs (CTEMPS) Room
2020
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LONG-TAILED SEDIMENT STORAGE TIME DISTRIBUTION FROM THE MEANDERING POWDER RIVER, MONTANA
T75 Refining Predictive Models of Modern and Ancient Source-to-Sink SystemsTuesday, 27 October 20201:30 PM - 5:30 PMMeeting Rooms
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BRINGING THE ROCKY MOUNTAIN REGION TO LIGHT: A SUMMARY OF THE USGS LUMINESCENCE GEOCHRONOLOGY LAB SHARED PROJECTS, RESEARCH, AND NEW UTILITIES OF THE TECHNIQUE IN FEDERAL AND STATE COLLABORATIONS
14 Federal and State Geologists of the Rocky Mountain Section: Who Are They, What Are They Working On, and How Can Everyone Collaborate? (Posters)Tuesday, 5 May 20208:30 AM - 4:30 PMBallroom A
2019
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GEOMORPHIC EVOLUTION OF THE LA BOTICA ARCHAEOLOGICAL SITE AND LA JARA CANYON: RELATIONSHIPS TO MIDDLE PLEISTOCENE LAKE ALAMOSA AND THE RIO GRANDE GORGE, SAN LUIS VALLEY, SOUTH-CENTRAL COLORADO, USA
5 Exciting New Interdisciplinary Themes in Quaternary GeochronologyMonday, 25 March 20198:00 AM - 12:00 PMAlcove Room
2018
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REFINING THE PROCEDURES FOR PORTABLE LUMINESCENCE READER MEASUREMENTS BY CALIBRATION WITH KNOWN AGE SAMPLES: PROTOCOLS AND NEXT STEPS
T285 Examining Big Questions or Paradigms with GeochronologyWednesday, 7 November 20181:30 PM - 5:30 PMRoom 136-137
2017
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SPEED DATING!: ADVICE ON SAMPLING AND APPLICATIONS FOR LUMINESCENCE DATING
219 Speed Dating!: Advice on Sampling and Applications Through the Lens of the Geochronologist (Posters)Tuesday, 24 October 20179:00 AM - 6:30 PMHalls 4EF
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TESTING AGE PREDICTIONS MADE WITH PORTABLE OSL MEASUREMENTS IN SOUTHERN NEVADA
T64 No Dates: No Rates—Utilizing Geochronometers to Quantify Rates of Geomorphic Processes or Archaeological Development over a Wide Range of Temporal and Spatial Scales (Posters)Sunday, 22 October 20179:00 AM - 5:30 PMHalls 4EF