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Activity

2025

• NEOGENE VOLCANO-TECTONIC EVOLUTION OF THE CENTRAL BAJA CALIFORNIA PENINSULA, MÉXICO: TRANSITION FROM SUBDUCTION TO RIFTING AND MARINE INCURSION
  16 Tectonic Controls on Cenozoic Magmatism in the Cordillera
  Thursday, 3 April 2025

  8:00 AM - 12:00 PM

  Fresno

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2024

• GEOLOGÍA DE LA SIERRA DE SAN JORGE, MARGEN OCCIDENTAL DE LA RIFT DEL GOLFO DE CALIFORNIA, PENÍNSULA CENTRAL DE BAJA CALIFORNIA, MÉXICO
  T94 Presentaciones de Geociencias en Español I: Una Nueva Experiencia en una Reunión de la Sociedad Geológica Americana (GSA)/ Spanish Presentations about Geosciences in the America I: A New GSA Experience
  Monday, 23 September 2024

  8:00 AM - 12:00 PM

  304C
• 3-D GEOLOGIC MAPPING NEAR BLYTHE, CALIFORNIA UNVEILS THE ARCHITECTURE OF CONCEALED NEOGENE FAULTS
  T105 Geologic Maps and Their Derivatives (Posters)
  Monday, 23 September 2024

  8:00 AM - 5:30 PM

  Hall D
• BEDROCK GEOLOGIC MAP OF THE COLORADO RIVER EXTENSIONAL CORRIDOR IN THE PARKER 30’ BY 60’ QUADRANGLE, CALIFORNIA AND ARIZONA
  T105 Geologic Maps and Their Derivatives (Posters)
  Monday, 23 September 2024

  8:00 AM - 5:30 PM

  Hall D
• MIOCENE TECTONIC AND STRATIGRAPHIC EVOLUTION OF THE CENTRAL BAJA CALIFORNIA PENINSULA AND RAPID MARINE FLOODING INTO THE GULF OF CALIFORNIA AT CA. 6.3 MA
  T72 Tectonics and Sedimentation of the Central Gulf of California, Mexico, and Surrounding Regions
  Sunday, 22 September 2024

  1:30 PM - 5:30 PM

  303A
• A NEW WORKING MODEL FOR CO-EVOLUTION OF PLANT AND ANIMAL SPECIES ON THE BAJA CALIFORNIA PENINSULA FROM GENOMIC AND GEOLOGIC DATA
  T72 Tectonics and Sedimentation of the Central Gulf of California, Mexico, and Surrounding Regions
  Sunday, 22 September 2024

  1:30 PM - 5:30 PM

  303A
• EVIDENCE FOR TERRESTRIAL ORIGIN OF THE PLIOCENE SAN REGIS BEDS, CENTRAL BAJA CALIFORNIA PENINSULA, MEXICO
  T72 Tectonics and Sedimentation of the Central Gulf of California, Mexico, and Surrounding Regions
  Sunday, 22 September 2024

  1:30 PM - 5:30 PM

  303A
• GEOLOGY OF THE TANNER BUTTE AND WAHTUM LAKE 7.5’ QUADRANGLES, COLUMBIA RIVER GORGE, OREGON
  39 Mapping the West (Posters)
  Friday, 17 May 2024

  9:00 AM - 1:30 PM

  Grand Ballroom
• GEOLOGY OF THE CARSON AND MT DEFIANCE 7.5’ QUADRANGLES, COLUMBIA RIVER GORGE, OREGON AND WASHINGTON
  39 Mapping the West (Posters)
  Friday, 17 May 2024

  9:00 AM - 1:30 PM

  Grand Ballroom
• GEOLOGIC MAPPING PROGRESS IN THE COLUMBIA GORGE, OREGON AND WASHINGTON
  39 Mapping the West (Posters)
  Friday, 17 May 2024

  9:00 AM - 1:30 PM

  Grand Ballroom
• NEW AEROMAGNETIC SURVEYS REVEAL THE CRUSTAL STRUCTURE OF THE CASCADE RANGE IN OREGON AND WASHINGTON
  10 Using Geologic and Geophysical Data to Unravel Neotectonics and Long-term Deformation across Cascadia (Posters)
  Wednesday, 15 May 2024

  9:00 AM - 5:30 PM

  Grand Ballroom
• NEW SURFACE EXPOSURE AGES, SLIP RATES, AND PALEOSEISMIC EVIDENCE OF ACTIVE EXTENSIONAL FAULTING NEAR MOUNT HOOD, OREGON
  17 Structure and Tectonics of the North American Cordillera and Rocky Mountains II
  Wednesday, 15 May 2024

  1:30 PM - 5:30 PM

  Maple Ballroom

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2023

• SUBMARINE EMPLACEMENT OF A LATE MIOCENE VOLCANIC LANDSLIDE COMPLEX, CENTRAL BAJA CALIFORNIA PENINSULA, MEXICO
  24 D1. Evaluating Linkages Between Volcanic, Sedimentary and Tectonic Processes
  Thursday, 18 May 2023

  1:30 PM - 4:00 PM

  Whitney Peak Ballroom 2

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2022

• NEW OBSERVATIONS ABOUT THE STRUCTURAL ARCHITECTURE OF THE GULF OF CALIFORNIA RIFT MARGIN IN BAJA CALIFORNIA SUR: LESSONS LEARNED FROM PAUL UMHOEFER’S LEGACY
  T216 Basin Analysis, Strike-Slip Faults, and Tectonics III: Honoring the Contributions of Paul Umhoefer
  Wednesday, 12 October 2022

  8:00 AM - 12:00 PM

  607
• CONSTRAINTS ON BASIN GEOMETRY AND FAULT OFFSET NEAR BLYTHE, CALIFORNIA AND IN WESTERN ARIZONA, FROM NEW AEROMAGNETIC AND GRAVITY DATA
  T216 Basin Analysis, Strike-Slip Faults, and Tectonics III: Honoring the Contributions of Paul Umhoefer
  Wednesday, 12 October 2022

  8:00 AM - 12:00 PM

  607
• THE PACKARD WELL FAULT AT PALEN PASS, CALIFORNIA: AN IMPORTANT COMPONENT OF THE PALEO-EASTERN CALIFORNIA SHEAR ZONE
  T137 Basin Analysis, Strike-Slip Faults, and Tectonics (Posters): Honoring the Contributions of Paul Umhoefer
  Monday, 10 October 2022

  2:00 PM - 6:00 PM

  Exhibit Hall F
• GEOMORPHOLOGY, GEOPHYSICS, AND GEOLOGY ALONG THE WALLULA FAULT ZONE, WASHINGTON AND OREGON
  T67 Crustal Deformation: How and When? Linking Long-Term Landscape Signatures with Earthquakes and Seismic Hazard (Posters)
  Sunday, 9 October 2022

  2:00 PM - 6:00 PM

  Exhibit Hall F
• STRATIGRAPHY, SEDIMENTOLOGY, AGE, AND TECTONIC SIGNIFICANCE OF THE UPPER MIOCENE BOLEO FORMATION IN THE SANTA ROSALIA BASIN, BAJA CALIFORNIA SUR, MEXICO
  T10 The Virtue of Fieldwork in Volcanology, Sedimentology, Structural Geology, and Tectonics I: A Session to Honor Cathy Busby, MGPV Distinguished Geological Career Award Recipient of 2020
  Sunday, 9 October 2022

  8:00 AM - 12:00 PM

  207
• PALEOSEISMIC TRENCHING AND LIDAR DATA REVEAL A PREVIOUSLY UNRECOGNIZED QUATERNARY-ACTIVE FAULT IN THE CASCADIA FOREARC OF SOUTHERN VANCOUVER ISLAND, CANADA
  T3 Crustal Deformation: How and When? Linking Long-Term Landscape Signatures with Earthquakes and Seismic Hazard
  Sunday, 9 October 2022

  8:00 AM - 12:00 PM

  507
• MIOCENE-PLIOCENE VOLCANISM IN THE SIERRA SAN FRANCISCO, CENTRAL BAJA CALIFORNIA PENINSULA, MEXICO
  39 Advances in Understanding Arc Magmatism in the Southwestern Cordillera (Posters)
  Thursday, 17 March 2022

  8:30 AM - 6:00 PM

  Student Union Ballroom A/B
• VOLCANIC AND TOPOGRAPHIC EVOLUTION OF THE SIERRA SAN FRANCISCO, BAJA CALIFORNIA SUR, MEXICO
  44 Advances in Understanding Arc Magmatism in the Southwestern Cordillera II
  Thursday, 17 March 2022

  1:30 PM - 5:30 PM

  CBC-A 108
• THE REAL EASTERN CALIFORNIA SHEAR ZONE
  27 The Tectono-Magmatic Evolution of the Basin and Range Province II: A Session in Honor of Ernie Anderson
  Wednesday, 16 March 2022

  1:30 PM - 5:30 PM

  CBC-A 106

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2021

• THE MOST RECENT EARTHQUAKE ON THE MOUNT HOOD FAULT ZONE, NORTH-CENTRAL OREGON: IMPLICATIONS FOR CASCADING EARTHQUAKE, LANDSLIDE, AND FLOOD MULTI-HAZARDS IN THE COLUMBIA RIVER GORGE
  T36 Recent to Long-Term Slip Histories of Active Faults and Folds in Cascadia
  Sunday, 10 October 2021

  1:30 PM - 5:30 PM

  A107–A109
• NEW LIDAR AND PALEOSEISMOLOGIC DISCOVERIES OF HOLOCENE-ACTIVE FAULTS IN THE HIGH CASCADES GRABEN, OREGON
  T36 Recent to Long-Term Slip Histories of Active Faults and Folds in Cascadia
  Sunday, 10 October 2021

  1:30 PM - 5:30 PM

  A107–A109
• CASCADIA BACKARC-FOREARC TECTONIC LINKS INTERPRETED FROM POTENTIAL-FIELD ANOMALIES, GEOLOGIC MAPPING, AND PALEOSEISMOLOGY
  T30 Recent to Long-Term Slip Histories of Active Faults and Folds in Cascadia (Posters)
  Sunday, 10 October 2021

  9:00 AM - 1:00 PM

  Exhibit Hall A
• FOREARC FAULTING IN NORTHERN CASCADIA: WHERE, WHEN, AND WHY?
  T36 Recent to Long-Term Slip Histories of Active Faults and Folds in Cascadia
  Sunday, 10 October 2021

  1:30 PM - 5:30 PM

  A107–A109

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2020

• PALEOSEISMIC TRENCHING EXPOSES MULTIPLE LATE QUATERNARY RUPTURES ON THE BEAUFORT RANGE FAULT, NORTHERN CASCADIA FOREARC, BRITISH COLUMBIA, CANADA
  T33 The Multidisciplinary Approach of the Seismotectonics as a Key Tool to Expand Horizons on Faulting Process Understanding and to Address Effective Seismic Hazard Assessment II
  Monday, 26 October 2020

  5:30 PM - 8:00 PM

  Meeting Rooms
• THE INFLUENCE OF MIOCENE TO RECENT TECTONICS AND LANDSCAPE EVOLUTION ON GENETIC DIVERSITY ALONG THE CENTRAL BAJA CALIFORNIA PENINSULA
  22 D9. Using Geological Archives to Understand and Document Earth Surface Processes and Past Climate (Posters)
  Wednesday, 13 May 2020

  9:00 AM - 6:00 PM

  Fountain Ballroom
• LONG-TERM EVOLUTION OF THE EASTERN CALIFORNIA SHEAR ZONE, 10 MA TO PRESENT
  15 The Kinematics, Dynamics, and Surface Expression of Faults in Eastern California—Improving Hazard Forecasts and Long-Term Slip Histories
  Tuesday, 12 May 2020

  1:30 PM - 5:30 PM

  Madera Room
• MULTIPLE LINES OF EVIDENCE SUGGEST 30-35 KM OF OFFSET ON THE BLYTHE BASIN STRIKE-SLIP FAULTS: PART OF THE MISSING DEXTRAL SHEAR ACROSS THE MIOCENE PACIFIC-NORTH AMERICA PLATE BOUNDARY?
  15 The Kinematics, Dynamics, and Surface Expression of Faults in Eastern California—Improving Hazard Forecasts and Long-Term Slip Histories
  Tuesday, 12 May 2020

  1:30 PM - 5:30 PM

  Madera Room

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2019

• GLOBAL PHYSICAL CONTROLS ON ESTUARINE HABITAT ABUNDANCE DURING SEA LEVEL CHANGE WITH IMPLICATIONS FOR RICHNESS AND DIVERSIFICATION OF MARGINAL MARINE FAUNAS
  T172 Quantitative Paleobiology of Marine Ecosystems
  Tuesday, 24 September 2019

  8:00 AM - 12:00 PM

  Room 227ABC, North Building
• PALEOSEISMIC TRENCHING REVEALS SPATIALLY-VARIABLE HOLOCENE SLIP BEHAVIOR ON THE LEECH RIVER FAULT
  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 2019

  9:00 AM - 6:00 PM

  Exhibit Hall B
• OBLIQUE SLIP HISTORY OF ACTIVE FAULTS ALONG THE WESTERN MARGIN OF THE HOOD RIVER GRABEN, NORTH-CENTRAL OREGON
  3 A Simple Twist of Plate: In Honor of the Career Contributions of the Dynamic Duo—Rick Blakely and Ray Wells—to Understanding Plate Interactions and Deformation in Cascadia
  Wednesday, 15 May 2019

  8:00 AM - 12:20 PM

  Room C124
• NEW GEOPHYSICAL OBSERVATIONS ALONG THE KLAMATH-BLUE MOUNTAINS LINEAMENT AND WALLULA FAULT ZONE, NE OREGON AND SE WASHINGTON
  8 A Simple Twist of Plate: In Honor of the Career Contributions of the Dynamic Duo—Rick Blakely and Ray Wells—to Understanding Plate Interactions and Deformation in Cascadia (Posters)
  Wednesday, 15 May 2019

  9:00 AM - 6:00 PM

  Exhibit Hall B
• POTENTIAL-FIELD ANOMALIES ILLUMINATE CASCADIA TECTONIC HISTORY, FROM REGIONAL TO OUTCROP SCALE: WORMS, WIGGLES, AND A STRING OF PEARLS
  3 A Simple Twist of Plate: In Honor of the Career Contributions of the Dynamic Duo—Rick Blakely and Ray Wells—to Understanding Plate Interactions and Deformation in Cascadia
  Wednesday, 15 May 2019

  8:00 AM - 12:20 PM

  Room C124
• GEOMETRY AND MECHANICS OF INHERITED FOREARC FAULTS ON VANCOUVER ISLAND
  3 A Simple Twist of Plate: In Honor of the Career Contributions of the Dynamic Duo—Rick Blakely and Ray Wells—to Understanding Plate Interactions and Deformation in Cascadia
  Wednesday, 15 May 2019

  8:00 AM - 12:20 PM

  Room C124

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2018

• A TECTONO-STRATIGRAPHIC RECORD OF THE LATEST MIOCENE GULF OF CALIFORNIA SHEAR ZONE FROM NORTHEASTERN ISLA TIBURON, SONORA, MEXICO
  4 Miocene to Recent Evolution of the Lower Colorado River Corridor and the Northern Gulf of California I
  Tuesday, 15 May 2018

  10:20 AM - 12:05 PM

  Coconino Room

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2017

• LATE QUATERNARY EARTHQUAKES ON THE CANYON RIVER FAULT, OLYMPIC MOUNTAINS, WASHINGTON: LINKING ACTIVE FAULTS IN THE PUGET LOWLAND TO OFFSHORE CASCADIA
  T210 Earthquakes, Faults, and Fault Systems in the Pacific Northwest
  Tuesday, 24 October 2017

  8:00 AM - 12:00 PM

  Chelan 4
• EXPLORING SHALLOW FAULT AND FOLD DEFORMATION OF THE SEATTLE FAULT ZONE USING NEW HIGH-RESOLUTION MARINE GEOPHYSICAL DATA
  T281 Earthquakes, Faults, and Fault Systems in the Pacific Northwest (Posters)
  Tuesday, 24 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• LIDAR DATA, GEOLOGIC MAPPING, AND PALEOSEISMIC TRENCHING REVEAL LATE QUATERNARY FAULT RUPTURES IN THE CASCADIA FOREARC OF SOUTHWESTERN BRITISH COLUMBIA
  T210 Earthquakes, Faults, and Fault Systems in the Pacific Northwest
  Tuesday, 24 October 2017

  8:00 AM - 12:00 PM

  Chelan 4
• TOWARDS A SYSTEMATIC CHARACTERIZATION OF CASCADIA UPPER PLATE MORPHOLOGY, STRUCTURE, AND QUATERNARY DEFORMATION HISTORY: AN INTEGRATED ONSHORE-OFFSHORE APPROACH
  T58 Characterizing Cascadia’s Earthquakes—Reexamining Open Questions about Cascadia Seismic and Tsunami Hazards
  Sunday, 22 October 2017

  1:30 PM - 5:30 PM

  Yakima 1

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2016

• EVIDENCE FOR LATEST QUATERNARY SURFACE RUPTURE ALONG THE LEECH RIVER FAULT NEAR VICTORIA, BRITISH COLUMBIA, CANADA
  117 New Approaches and Results in Structural Geology and Neotectonics
  Monday, 26 September 2016

  1:30 PM - 5:30 PM

  Room 203

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2003

• SKELETAL GROWTH RATES OF CENOZOIC CARIBBEAN REEF-CORALS
  130 Paleontology/Paleobotany II: Morphometrics, Morphological Trends, and Growth
  Tuesday, 4 November 2003

  8:00 AM - 12:00 PM