---

Activity

2025

• LOW-TEMPERATURE THERMOCHRONOLOGICAL CONSTRAINTS ON THE TIMING, MAGNITUDE, AND SPATIAL EXTENT OF LATE CRETACEOUS COOLING WITHIN THE ENIGMATIC TETON-GROS VENTRE UPLIFT
  19 Tectonic Development of the Rocky Mountain Region
  Monday, 19 May 2025

  3:45 PM - 5:30 PM

  Cascade C
• NEW U-Pb DETRITAL ZIRCON GEOCHRONOLOGY OF QUARTZITES FROM THE ALBION-RAFT RIVER-GROUSE CREEK METAMORPHIC CORE COMPLEX OF SOUTHERN IDAHO: IMPLICATIONS FOR NEOPROTEROZOIC TO CAMBRIAN CORRELATIONS
  19 Tectonic Development of the Rocky Mountain Region
  Monday, 19 May 2025

  3:45 PM - 5:30 PM

  Cascade C

---

2024

• UPPER PLATE CONTROLS ON THE EXPRESSION OF MOUNTAIN BUILDING IN CORDILLERAN OROGENIC SYSTEMS
  T220 Thermal and Rheological Controls on the Development of Orogenic Belts
  Tuesday, 24 September 2024

  1:30 PM - 5:30 PM

  304C
• THE BEAR CAMP GULCH 7.5-MINUTE QUADRANGLE
  T118 Best Student Geologic Map Competition (Posters)
  Monday, 23 September 2024

  8:00 AM - 5:30 PM

  Hall D
• U/PB ZIRCON DATING OF BASEMENT ROCKS IN THE EASTERN UINTA MOUNTAINS, UTAH SUGGESTS 2.7-2.3 GA DEPOSITION AND CA. 1.7 GA METAMORPHISM AT THE SOUTHERN MARGIN OF THE WYOMING PROVINCE
  T47 North American Cordilleran Margin Tectonic Framework: Paleozoic and Precambrian (Posters)
  Sunday, 22 September 2024

  8:00 AM - 5:30 PM

  Hall D
• FIRST CYCLE OR POLYCYCLIC? COMBINING APATITE AND ZIRCON DETRITAL U-Pb GEOCHRONOLOGY AND GEOCHEMISTRY TO ASSESS SEDIMENT RECYCLING IN THE SOUTHWESTERN MONTANA FORELAND BASIN, NORTH AMERICAN CORDILLERA
  T71 The Changing Cordilleran Margin: Permian through Eocene Tectonism, Magmatism, and General Geology from Western Mexico through Northern California and Eastward
  Sunday, 22 September 2024

  1:30 PM - 5:30 PM

  304A
• SPECULATION ON THE AGES AND RELATIVE STRATIGRAPHIC POSITIONS OF BELT SUPERGROUP-EQUIVALENT ROCKS OF THE LEMHI SUBBASIN, EAST-CENTRAL IDAHO AND SOUTHWESTERN MONTANA
  20 The Boring Billion was not so Boring! Mesoproterozoic Tectonics, Sedimentation, and Geochronology of Northwest Laurentia I
  Thursday, 16 May 2024

  8:00 AM - 12:00 PM

  Cedar Ballroom
• DISMEMBERING THE PUTNAM THRUST: MIOCENE EXTENSION WITHIN THE FORELAND-HINTERLAND TRANSITION OF THE IDAHO-WYOMING SALIENT AND A REVISED KINEMATIC MODEL FOR THE PUTNAM THRUST SYSTEM
  11 Structure and Tectonics of the North American Cordillera and Rocky Mountains (Posters)
  Wednesday, 15 May 2024

  9:00 AM - 5:30 PM

  Grand Ballroom

---

2023

• EXPLORING THE GEOCHEMICAL VARIATION OF MAGMATIC ROCKS OF IDAHO USING PAIRED GEOCHRONOLOGY-GEOCHEMISTRY OF DETRITAL ZIRCON IN MODERN RIVERS
  T245 Advances in Detrital Heavy Minerals: Applications and Methods (Posters)
  Wednesday, 18 October 2023

  8:00 AM - 5:30 PM

  Hall B
• USING DEEP-TIME THERMOCHRONOLOGY TO RECOVER MISSING GEOLOGIC HISTORIES ACROSS UNCONFORMITIES: A PROOF OF CONCEPT USING SAMPLES BELOW NEOPROTEROZOIC STRATA IN THE UINTA MOUNTAINS, UTAH
  T116 Time Machine: Earth’s Deep-Time Geography—Data, Reconstructions, Challenges (Posters)
  Monday, 16 October 2023

  8:00 AM - 5:30 PM

  Hall B
• PREVIOUSLY UNRECOGNIZED MESOPROTEROZOIC STRATA IN SOUTH-CENTRAL IDAHO DOCUMENT LATE-STAGE RIFTING OF THE NUNA SUPERCONTINENT IN WESTERN LAURENTIA
  T116 Time Machine: Earth’s Deep-Time Geography—Data, Reconstructions, Challenges (Posters)
  Monday, 16 October 2023

  8:00 AM - 5:30 PM

  Hall B
• CHRONOLOGICAL FRAMEWORK FOR THE LOWER CRETACEOUS SECTION IN SOUTHWESTERN MONTANA BASED ON DETRITAL ZIRCON U-PB GEOCHRONOLOGY FROM MULTIPLE LITHOLOGIES
  T20 Maximum Depositional Ages (MDAs) from Detrital Mineral Geochronology: Recent Advances in Sampling, Experimental Designs, Interpretive Tacts, and Chronostratigraphic Applications
  Sunday, 15 October 2023

  8:00 AM - 12:00 PM

  320
• CHARACTERIZATION OF ZIRCONS FROM BASEMENT COBBLES COLLECTED FROM THE NEOPROTEROZOIC POCATELLO FORMATION TO ASSESS A POTENTIAL ARCHIVE OF BASEMENT-ROCK THERMAL HISTORIES
  8 Crust Formation, Deformation, Metamorphism, Plutonism, and Thermal Evolution of the Rocky Mountains: Proterozoic to Present (Posters)
  Tuesday, 23 May 2023

  8:00 AM - 6:00 PM

  C/D Ballroom

---

2022

• A THERMAL RECORD OF GROWTH AND DESTRUCTION ACROSS THE THIN- TO THICK-SKINNED IDAHO-MONTANA FOLD-THRUST BELT
  T184 Structural Analysis of Polyphase Deformation from Orogen to Thin Section II: A Special Session in Honor of Sharon Mosher
  Tuesday, 11 October 2022

  1:30 PM - 5:30 PM

  605
• TESTING PROVENANCE AND REGIONAL CORRELATIONS OF NEWLY RECOGNIZED MESOPROTEROZOIC STRATA IN EAST-CENTRAL IDAHO
  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
• DETRITAL ZIRCON DATA SUPPORTS A NEOPROTEROZOIC PHASE OF TILTING WITHIN THE LEMHI ARCH IN EAST-CENTRAL IDAHO
  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
• KINEMATICS, TIMING, AND MAGNITUDE OF SHORTENING WITHIN THE CRETACEOUS SEVIER-LARAMIDE FOLD-THRUST BELT OF IDAHO AND MONTANA
  32 From the Sevier to Laramide: Connecting Hinterland to Foreland by Tectonics, Structure, and Sedimentation
  Thursday, 17 March 2022

  8:00 AM - 12:00 PM

  CBC-A 112
• NEOPROTEROZOIC TO CAMBRIAN RIFTING IN THE NORTHERN ROCKY MOUNTAINS OF IDAHO AND MONTANA: A TECTONIC MODEL
  18 Neo-Insights into the Neoproterozoic of Western North America
  Wednesday, 16 March 2022

  8:00 AM - 12:00 PM

  CBC-A 112
• PROTEROZOIC TECTONISM IN SOUTHWESTERN MONTANA: DEEP-TIME LOW-TEMPERATURE THERMOCHRONOLOGY OF BASEMENT ROCKS
  18 Neo-Insights into the Neoproterozoic of Western North America
  Wednesday, 16 March 2022

  8:00 AM - 12:00 PM

  CBC-A 112

---

2021

• DETRITAL ZIRCON U-PB GEOCHRONOLOGY OF CRETACEOUS STRATA IN THE SOUTHWESTERN MONTANA FORELAND BASIN PROVIDES NEW TEMPORAL CONTROL FOR THE ONSET OF LARAMIDE DEFORMATION
  T143 Insights into Cordilleran Tectonics and Magmatism from the Sedimentary Record
  Tuesday, 12 October 2021

  8:00 AM - 12:00 PM

  Portland Ballroom 255 (Hybrid Room)
• TIGHTENING THE BELT: NEW AGE AND PROVENANCE CONSTRAINTS ON PROTEROZOIC STRATA INEAST-CENTRAL IDAHO
  T194 Insights into Cordilleran Tectonics and Magmatism from the Sedimentary Record (Posters)
  Tuesday, 12 October 2021

  2:30 PM - 6:30 PM

  Exhibit Hall A
• MIDDLE ALBIAN PROVENANCE, SEDIMENT DISPERSAL, AND FORELAND BASIN DYNAMICS IN SOUTHWESTERN MONTANA, NORTH AMERICAN CORDILLERA
  T143 Insights into Cordilleran Tectonics and Magmatism from the Sedimentary Record
  Tuesday, 12 October 2021

  8:00 AM - 12:00 PM

  Portland Ballroom 255 (Hybrid Room)
• THE PROGRESSION FROM THIN- TO THICK-SKINNED THRUSTING IN THE IDAHO-MONTANA FOLD-THRUST BELT RESULTED FROM STEP-DOWN OF THE BASAL DÉCOLLEMENT INTO BASEMENT ROCKS TOWARD THE CONTINENTAL INTERIOR
  127 D32. Recent Advances in Tectonics/Tectonophysics (Posters)
  Monday, 11 October 2021

  2:30 PM - 6:30 PM

  Exhibit Hall A

---

2020

• A STRATIGRAPHICALLY CONTROLLED DOUBLE-DECKER MODEL FOR THE THIN- TO THICK-SKINNED FOLD-THRUST BELT OF EAST-CENTRAL IDAHO AND SOUTHWESTERN MONTANA
  T199 Assembling Laurentia: Growth of the Western Continental Margin by Subduction, with or without Terrane Accretion, 190-70 Ma I
  Thursday, 29 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms
• PROVENANCE OF THE LOWER CRETACEOUS KOOTENAI FORMATION IN SOUTHWESTERN MONTANA: IMPLICATIONS FOR FORELAND BASIN SEDIMENTATION AND REGIONAL TECTONIC MODELS
  T199 Assembling Laurentia: Growth of the Western Continental Margin by Subduction, with or without Terrane Accretion, 190-70 Ma I
  Thursday, 29 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms
• GEOLOGIC MAPPING AND DZ ANALYSIS OF NEOPROTEROZOIC TO ORDOVICIAN STRATA IN CENTRAL IDAHO REVEALS A THINNER SECTION WITH UNCONFORMITIES, BUT MARGIN-PARALLEL SIMILARITIES IN LITHOSTRATIGRAPHY AND PROVENANCE
  T173 Assembling Laurentia: Neoproterozoic to Cambrian Rifting and Continental Margin Evolution during Breakup of Rodinia and Pannotia
  Thursday, 29 October 2020

  10:00 AM - 12:00 PM

  Meeting Rooms
• GEOLOGIC MAPPING AND STRUCTURAL ANALYSIS NORTH OF LEADORE IN EAST-CENTRAL IDAHO REVEALS STACKED THIN- AND THICK-SKINNED FOLD-THRUST BELTS
  T45 Best Student Geologic Map Competition (Posters)
  Tuesday, 27 October 2020

  10:00 AM - 12:00 PM

  Meeting Rooms
• GEOLOGIC MAPPING OF NEOPROTEROZOIC TO ORDOVICIAN STRATA IN THE LOST RIVER AND LEMHI RANGES AND SALMON RIVER MOUNTAINS, CENTRAL IDAHO
  8 D2. Geology of the San Rafael Swell and Other Areas of Stratigraphic Significance in the Rocky Mountain Region
  Monday, 4 May 2020

  1:25 PM - 4:30 PM

  Cascades C

---

2019

• NO FLAT-SLAB NEEDED: THE TRANSITION FROM THIN- TO THICK-SKINNED THRUSTING IN THE IDAHO-MONTANA FOLD-THRUST BELT WAS CONTROLLED BY THE PRE-OROGENIC STRATIGRAPHY
  T167 Late Cretaceous to Early Paleogene Tectonic Development of the North American Cordillera I
  Tuesday, 24 September 2019

  8:00 AM - 12:00 PM

  Room 231ABC, North Building
• CROSSCUTTING THIN- AND THICK-SKINNED THRUSTS WITHIN THE IDAHO-MONTANA FOLD-THRUST BELT: A DETACHMENT CONTROL ON STRUCTURAL STYLE
  T167 Late Cretaceous to Early Paleogene Tectonic Development of the North American Cordillera I
  Tuesday, 24 September 2019

  8:00 AM - 12:00 PM

  Room 231ABC, North Building
• GEOLOGIC MAP OF THE BAYHORSE ANTICLINE, CUSTER COUNTY, IDAHO: WINDERMERE SUPERGROUP WEST OF THE LEMHI ARCH
  T204 Best Student Geologic Mapping Competition (Posters)
  Tuesday, 24 September 2019

  9:00 AM - 6:30 PM

  Hall AB, North Building
• CONSTRAINING THE TIMING OF DEFORMATION IN SOUTHWESTERN MONTANA BASEMENT CORED RANGES USING LOW TEMPERATURE THERMOCHRONOLOGY
  T167 Late Cretaceous to Early Paleogene Tectonic Development of the North American Cordillera I
  Tuesday, 24 September 2019

  8:00 AM - 12:00 PM

  Room 231ABC, North Building

---

2018

• A NEWLY IDENTIFIED NEOPROTEROZOIC AND CAMBRIAN RIFT-RELATED SEDIMENTARY SUCCESSION IN THE BAYHORSE REGION OF CENTRAL IDAHO: LATERAL AND TRANSVERSE VARIATIONS IN THE LAURENTIAN MARGIN
  11 Recent Advances in Basin-and-Range and Proterozoic Geology of the Western U.S.: A Session Honoring Ernie Duebendorfer (Posters)
  Tuesday, 15 May 2018

  8:30 AM - 6:30 PM

  Outdoor Tents
• ZIRCON U-PB CONSTRAINTS ON THE AGES AND OBSCURED BOUNDARIES OF TERRANES IN THE WESTERN NORTH AMERICAN CORDILLERA: CENTRAL GNEISS COMPLEX, BRITISH COLUMBIA
  32 Petrologic Insights on Modern and Ancient Plate Margins: The Volcanic, Plutonic, and Metamorphic Records (Posters)
  Monday, 19 March 2018

  8:00 AM - 12:00 PM

  Lake Champlain Exhibition Hall

---

2017

• WHOSE FAULT IS IT? A KINEMATIC ANALYSIS OF HIGH ANGLE FAULTS ADJACENT TO THE EASTERN SNAKE RIVER PLAIN NEAR ARCO, ID
  385 D41. Structural Geology (Posters): Analysis of Faulting, Deformation and Flow
  Wednesday, 25 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• FAULT DETECTION USING MULTISCALE REMOTE SENSING TECHNIQUES, NEAR CHALLIS, IDAHO
  T355 What Can You Do with Geoinformatics? (Posters)
  Wednesday, 25 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• RODINIA, RIFTING, AND THE RAMSHORN SLATE: GEOLOGIC MAPPING OF THE BAYHORSE AREA, CENTRAL IDAHO REASSIGNS THE AGE OF POORLY UNDERSTOOD STRATIGRAPHY FROM ORDOVICIAN TO NEOPROTEROZOIC
  T245 Geologic Mapping in the Pacific Northwest and Beyond: Recent Maps, Advances, and New Insights: In Memory of Russell C. Evarts and his Extensive Contributions to Pacific Northwest Geologic Mapping
  Tuesday, 24 October 2017

  1:30 PM - 5:30 PM

  Tahoma 2

---

2016

• BUILDING MOUNTAINS IN OLD CONTINENTAL CRUST: EXAMPLES FROM ARGENTINA AND IDAHO-MONTANA
  T113 Along-Strike Variations in Mountain Belts: Why Are They Important and What Causes Them?
  Monday, 26 September 2016

  8:00 AM - 12:00 PM

  Mile High Ballroom 2B
• THE LEMHI ARCH OF EAST-CENTRAL IDAHO: A STRANDED FAULT BLOCK WITHIN THE WESTERN LAURENTIAN RIFT MARGIN
  18 Source to Sink, Proterozoic to Today: Erosion, Sediment Transport, and the Stratigraphic Record of Surface Processes
  Thursday, 19 May 2016

  8:00 AM - 12:00 PM

  Crest Room
• STRUCTURAL FRAMEWORK AND DETRITAL ZIRCON PROVENANCE OF CLAYTON, IDAHO: DEFINING THE WESTERN LAURENTIAN RIFT MARGIN NORTH OF THE SNAKE RIVER PLAIN
  18 Source to Sink, Proterozoic to Today: Erosion, Sediment Transport, and the Stratigraphic Record of Surface Processes
  Thursday, 19 May 2016

  8:00 AM - 12:00 PM

  Crest Room

---

2015

• SEGMENTATION OF THE WESTERN LAURENTIAN CONTINENTAL MARGIN:  EVIDENCE FOR ACTIVE TECTONISM IN THE NEOPROTEROZOIC-CAMBRIAN ‘MIOGEOCLINE’
  T341 Deconstructing Rodinia: Neoproterozoic-Cambrian Geologic Evolution of Laurentia’s Margins
  Wednesday, 4 November 2015

  1:30 PM - 5:30 PM

  Room 314
• THE ROLE OF PRE-EXISTING STRUCTURES ON THE GEOMETRY OF THE LATE CRETACEOUS POISON CREEK THRUST FAULT OF EAST-CENTRAL IDAHO
  19 Structural Geology, Tectonics, and Tectonophysics (Posters)
  Saturday, 23 May 2015

  8:00 AM - 1:00 PM

  North/Central Ballroom
• PROTEROZOIC RIFT SYSTEMS AND THEIR INFLUENCE ON THE FORMATION OF THE LATE CRETACEOUS-EARLY CENOZOIC WYOMING SALIENT
  10 Mountain Building and Basin Response: New Insights to the Bighorn Mountains and Associated Basins
  Friday, 22 May 2015

  10:00 AM - 11:45 AM

  South Ballroom
• REGIONAL INTERACTIONS AMONG CRUSTAL TECTONICS, STRUCTURES AND MAGMA TRANSFER ASSOCIATED WITH THE QUATERNARY BLACKFOOT VOLCANIC FIELD, SE IDAHO
  4 Yellowstone/Teton/Snake River Plain Volcano?Tectonic System: Honoring 55 Years of Distinguished Research and the Legacy of Bob Smith (Posters)
  Thursday, 21 May 2015

  12:00 PM - 6:00 PM

  North/Central Ballroom

---

2014

• CRETACEOUS PROTOLITHS OF CENTRAL GNEISS COMPLEX ROCKS, BRITISH COLUMBIA, CANADA
  3 Snoke Session 1: The Eclectic Tectonic Legacy of Arthur W. Snoke—Metamorphic Core Complexes at Age 35 I
  Monday, 19 May 2014

  8:00 AM - 12:00 PM

  Gaines Hall 101