Alan J. Hidy
Lawrence Livermore National Laboratory, Livermore, CA
Activity
2025
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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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COSMOGENIC CHLORINE-36 DATING OF EARTH SURFACE CHANGE: RECENT PROGRESS IN LABORATORY METHODS AND NEW APPLICATIONS
T82 What’s the Cosmognosis? Recent Advances in Understanding Earth and Planetary Processes with Cosmogenic NuclidesMonday, 23 September 20248:00 AM - 12:00 PM212B
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COARSE ALLUVIUM COSMOGENIC CHRONOMETRY
T82 What’s the Cosmognosis? Recent Advances in Understanding Earth and Planetary Processes with Cosmogenic NuclidesMonday, 23 September 20248:00 AM - 12:00 PM212B
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QUANTIFYING REPLICATION THROUGH REPEATED ANALYSIS OF UVM-A, A LIQUID REFERENCE MATERIAL FOR COSMOGENIC 10Be AND 26Al STUDIES
T82 What’s the Cosmognosis? Recent Advances in Understanding Earth and Planetary Processes with Cosmogenic NuclidesMonday, 23 September 20248:00 AM - 12:00 PM212B
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THE MYSTERY OF UNSTABLE AND TRANSIENT PLEISTOCENE INCISION IN THE COLORADO PLATEAU
T60 Earth Surface Processes in Tectonically Active and Unstable Regions IISunday, 22 September 20241:30 PM - 5:30 PM210B
2022
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THE COLLAPSE OF THE LAURENTIDE-CORDILLERAN ICE SADDLE AND EARLY OPENING OF THE MACKENZIE VALLEY, NORTHWEST TERRITORIES, CONSTRAINED BY 10BE EXPOSURE DATING
T47 The Last Glacial–Interglacial Transition in Western North America: Paleoclimate Proxies, Environmental Responses, and Data-Model ComparisonsSunday, 9 October 20221:30 PM - 5:30 PM503
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COLORADO RIVER CANYONS ARE CUT BY MID-LATE PLEISTOCENE TRANSIENT INCISION AND REFLECT LOCAL GEOLOGIC CONTROLS
T36 Over the Hills and through the River: The Mechanisms of Change in Bedrock River Influenced/Controlled LandscapesSunday, 9 October 20221:30 PM - 5:30 PM406
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RAPID RETREAT OF THE SOUTHWESTERN LAURENTIDE ICE-SHEET DURING THE BØLLING-ALLERØD INTERVAL
T47 The Last Glacial–Interglacial Transition in Western North America: Paleoclimate Proxies, Environmental Responses, and Data-Model ComparisonsSunday, 9 October 20221:30 PM - 5:30 PM503
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QGG DENTON, ANDREWS, PORTER GLACIOLOGY AWARD: CONSTRAINING THE TIMING OF DEGLACIAL WARMING IN COSTA RICA
T47 The Last Glacial–Interglacial Transition in Western North America: Paleoclimate Proxies, Environmental Responses, and Data-Model ComparisonsSunday, 9 October 20221:30 PM - 5:30 PM503
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SPATIAL PATTERNS OF 10BE-BASED CATCHMENT WIDE DENUDATION IN THE WESTERN PANAMINT MOUNTAINS, CALIFORNIA
36 Undergraduate and Graduate Geoscience Student Showcase (Posters)Friday, 8 April 20228:00 AM - 12:00 PMJunior Ballroom B
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LATE QUATERNARY SLIP RATES AND SURFACE RUPTURE OF THE BITTERROOT FAULT, WESTERN MONTANA: AN ENIGMATIC SEISMOGENIC FAULT IN THE NORTHERN ROCKIES BASIN AND RANGE
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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CLIMATE CHANGE IN THE NORTHERN TROPICAL ANDES DURING TERMINATION 1 DERIVED FROM GLACIER RECONSTRUCTIONS: THE SIERRA NEVADA DEL COCUY CASE
T111 Mountain Glaciation and Climate Change of the Past and Present IIMonday, 11 October 20211:30 PM - 5:30 PMD139/D140
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INVESTIGATING THE ROLES OF SALT TECTONICS AND HILLSLOPE MASS MOVEMENTS IN FORMING THE CATARACT CANYON KNICKZONE, UTAH USING CHRONOSTRATIGRAPHY OF COLORADO RIVER TERRACES
T16 Advances in Geomorphology: Understanding How Interactions among Climatic, Tectonic, Fluvial, and Hillslope Processes Drive Topographic Change ISunday, 10 October 20218:00 AM - 12:00 PMPortland Ballroom 254 (Hybrid Room)
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LATE QUATERNARY SLIP RATES OF THE BITTERROOT FAULT IN WESTERN MONTANA FROM BE-10 DATING OF OFFSET PINEDALE AND BULL LAKE GLACIAL DEPOSITS
T34 Cenozoic Tectonism, Magmatism, Sedimentation, and Landscape Evolution in the Intermountain West IISunday, 10 October 20211:30 PM - 5:30 PMPortland Ballroom 257 (Hybrid Room)
2020
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USING FALLOUT AND IN SITU RADIONUCLIDES TO UNDERSTAND THE EFFECTS OF A LARGE TROPICAL CYCLONE ON EROSION PROCESSES ON CARIBBEAN ISLANDS
T143 Surface Process Response to Extreme EventsWednesday, 28 October 20201:30 PM - 5:30 PMMeeting Rooms
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RAPID RETREAT OF THE SOUTHWESTERN LAURENTIDE ICE SHEET DRIVEN BY BØLLING-ALLERØD WARMING
94 D19. Quaternary Geology ITuesday, 27 October 20205:30 PM - 8:00 PMMeeting Rooms
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CAMP CENTURY ICE CORE BASAL SEDIMENTS CONTAIN A MULTI-MILLION-YEAR RECORD OF ICE-COVER AND VEGETATION IN NORTHWESTERN GREENLAND
T18 Sea Level and Ice-Sheet Changes, Glacial Isostatic Adjustment, and Landscape Evolution IMonday, 26 October 20201:30 PM - 5:30 PMMeeting Rooms
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COSMOGENIC 26AL AND 10BE MEASUREMENTS FROM CAMP CENTURY BASAL SEDIMENT INDICATE GREENLAND ICE SHEET ABSENCE IN THE LAST MILLION YEARS
16 Radionuclides: Biogeochemistry, Transport, and Geological Applications IIFriday, 20 March 20201:30 PM - 3:30 PMRegency Ballroom A
2019
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EXTRACTING HISTORIES OF CLIMATE, EROSION, AND VEGETATION FROM GLACIAL MARINE DIAMICT, AN UNDER-UTILIZED ARCHIVE: PROOF OF CONCEPT FROM MELVILLE BUGT, NW GREENLAND
T218 Inverting Source from Sink: Decoding Sedimentary Records of Climate, Erosion, and VegetationTuesday, 24 September 20191:30 PM - 5:30 PMRoom 132ABC, North Building
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INTEGRATING TECTONIC GEOMORPHOLOGY WITH SEISMIC HAZARDS ON THE MAE CHAN FAULT, NORTHERN THAILAND: DECIPHERING LAND SURFACE CHANGE FROM TECTONICS AND HUMAN ACTIVITY
20 Advances in Seismic Hazard Assessment through Paleoseismic and Tectonic Geomorphic Fault Studies: In Honor of Ray J. Weldon II, for His Career and Contributions to the Field (Posters)Thursday, 16 May 20199:00 AM - 6:00 PMExhibit Hall B
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26AL - 10BE ISOCHRON BURIAL DATING OF EARLY-MID PLEISTOCENE RIVER GRAVELS OF THE CHESAPEAKE BAY REGION, EAST–CENTRAL UNITED STATES
15 Geologic Studies of the U.S. Atlantic Coastal PlainThursday, 28 March 20198:40 AM - 12:00 PMCalhoun Room
2018
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YOUTHFUL, TRANSIENT RIVER INCISION OF MYSTERIOUS ORIGIN IS CAPTURED IN CHRONOSTRATIGRAPHY AROUND MOAB, UTAH
29 Colorado Plateau Landscape Evolution -- Grand Canyon- and Upper Basin-Focused Colorado River Evolution IWednesday, 16 May 20188:20 AM - 10:05 AMCoconino Room
2017
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AGE-EROSION CONSTRAINTS ON AN EARLY PLEISTOCENE PALEOSOL IN YUKON, CANADA, WITH PROFILES OF 10BE AND 26AL: EVIDENCE FOR A SIGNIFICANT LOESS COVER EFFECT ON COSMOGENIC NUCLIDE PRODUCTION RATES
T160 Quantifying Geomorphic Processes and Rates of Landscape Evolution (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
2016
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NEW CHRONOLOGY FOR THE SOUTHERN KALAHARI GROUP SEDIMENTS WITH IMPLICATIONS FOR SEDIMENT-CYCLE DYNAMICS
T281 Quantifying Geomorphic Processes and Rates of Landscape Evolution IWednesday, 28 September 20168:00 AM - 12:00 PMRoom 405
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10BE EXPOSURE DATING OF HOLOCENE MORAINES IN THE SIERRA NEVADA, CALIFORNIA
74 Recent Advances in Paleoclimatology and Paleoceanography (Posters)Sunday, 25 September 20169:00 AM - 5:30 PMExhibit Hall E/F
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COMPLEX MORAINE EXPOSURE AGES ON HOLOCENE MORAINES IN THE SIERRA NEVADA: A NEOGLACIAL CONUNDRUM
3 Spatial and Temporal Variability of California Climate: Implications for Landscape EvolutionMonday, 4 April 20168:30 AM - 12:30 PMMeeting Room 203 AB
2015
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WIDE SPAN OF EXPOSURE AGES ON HOLOCENE MORAINES IN THE SIERRA NEVADA: PROCESS OR CLIMATIC CONTROLS?
T192 Decadal to Century-Scale Proxy Climate Records in High-Altitude and High-Latitude LandscapesTuesday, 3 November 20158:00 AM - 12:00 PMRoom 340
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REGOLITH-STRIPPING AT THE PLIO-PLEISTOCENE TRANSITION: EVOLUTION OF THE KLONDIKE PLACER
T240 Soil to Sediment—From Geologic to Modern Time Scales: A Session to Honor the Work of Milan PavichTuesday, 3 November 20151:30 PM - 5:30 PMRoom 331/332
2014
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THE EARLY TO MIDDLE PLEISTOCENE TRANSITION IN NORTHWESTERN CANADA AND POTENTIAL RESPONSE OF THE CORDILLERAN ICE SHEET
269 The Cordilleran Ice Sheet: A Glacial Legacy in the Pacific NorthwestWednesday, 22 October 20148:00 AM - 12:00 PMBallroom A
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NEW CHRONOLOGY FOR THE SOUTHERN KALAHARI GROUP SEDIMENTS: IMPLICATIONS FOR SEDIMENT CYCLE DYNAMICS AND EARLY HOMININ OCCUPATION
T39 Modern and Ancient Continental Depositional Environments: Linking Landscape Evolution with Fluvial Systems and Lacustrine Basins through the Cenozoic (Posters)Sunday, 19 October 20149:00 AM - 5:00 PMExhibition Hall C
Date Unknown
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COSMOGENIC 10BE EXPOSURE DATING OF COLORADO RIVER TERRACES AT LEES FERRY, ARIZONA
T129 Carving the Western Landscape: The Evolution of the Colorado Drainage from Source to Sink (Posters)