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Activity

2025

• SPATIO-CHEMICAL ANALYSIS OF MAFIC LAVAS OF THE CENTRAL OREGON HIGH CASCADES
  12 Tectonics and Magmatism in the Modern and Ancestral Cascades Volcanic Arc II
  Wednesday, 2 April 2025

  1:30 PM - 5:30 PM

  Balboa/Calaveras
• TEXTURAL INVESTIGATION INTO RAPID WELDING TRANSITIONS IN THE TUFF OF LESLIE GULCH ALONG SUCCOR CREEK AT THE MAHOGANY MOUNTAIN-THREE FINGERS RHYOLITE FIELD, SOUTHEASTERN OREGON
  8 Undergraduate Research Posters I
  Wednesday, 2 April 2025

  8:00 AM - 5:30 PM

  Sierra Ballroom
• INVESTIGATION INTO POSSIBLE INTERFINGERING OF FLOOD BASALT LAVAS OF THE PICTURE GORGE BASALT AND STEENS BASALT IN SE OREGON
  8 Undergraduate Research Posters I
  Wednesday, 2 April 2025

  8:00 AM - 5:30 PM

  Sierra Ballroom

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2024

• REASSESSING COMPOSITION AND DISTRIBUTION OF ~44 TO 17 MA VOLCANIC ACTIVITY ACROSS OREGON BEARING ON THE YELLOWSTONE- SILETZIA PLUME INTERACTION AHEAD OF COLUMBIA RIVER PROVINCE MAGMATISM
  T96 Continental Flood Basalts: Classifying, Correlating, and Constraining Eruptive Products through Space and Time
  Monday, 23 September 2024

  8:00 AM - 12:00 PM

  207B
• GEOLOGIC MAP OF THE CRAFT POINT QUADRANGLE, HARNEY COUNTY, OREGON, USA
  T118 Best Student Geologic Map Competition (Posters)
  Monday, 23 September 2024

  8:00 AM - 5:30 PM

  Hall D
• REGIONAL SCALE INVESTIGATION OF WIDESPREAD BASALTIC ANDESITES OF THE CENTRAL TO NORTHERN OREGON CASCADE ARC
  34 New Developments in the Magmatic Drivers of Cascades Volcanism
  Friday, 17 May 2024

  8:00 AM - 12:00 PM

  Meeting Room 1
• REVISITING COMPOSITION AND TIMING OF EARLIEST CRBG VOLCANISM AND CONTEXT TO LATER CRBG UNITS AS WELL AS TO ASSOCIATED SILICIC MAGMATISM
  3 Continental Mafic Volcanism I: Honoring the Career of Vic Camp
  Wednesday, 15 May 2024

  8:00 AM - 12:00 PM

  Meeting Room 1
• NEW INSIGHTS INTO THE GEOCHEMICAL AND GEOCHRONOLOGICAL HISTORY OF THE CHIEF JOSEPH DIKE SWARM AND THE FLOW DYNAMICS OF DIKE EMPLACEMENT
  3 Continental Mafic Volcanism I: Honoring the Career of Vic Camp
  Wednesday, 15 May 2024

  8:00 AM - 12:00 PM

  Meeting Room 1
• GEOCHEMISTRY AND GEOCHRONOLOGY OF THE STEENS AND MONUMENT DIKE SWARM: IMPLICATIONS AND RELATIONSHIPS TO LAVA FLOWS OF THE PICTURE GORGE AND STEENS BASALT
  3 Continental Mafic Volcanism I: Honoring the Career of Vic Camp
  Wednesday, 15 May 2024

  8:00 AM - 12:00 PM

  Meeting Room 1
• ORPHAN BASALTS OF THE GREATER JOHN DAY TO BURNS CORRIDOR, EASTERN OREGON: UNDERSTANDING THE ORIGINS OF UNASSIGNED BASALTS
  16 Continental Mafic Volcanism II: Honoring the Career of Vic Camp
  Wednesday, 15 May 2024

  1:30 PM - 5:30 PM

  Meeting Room 1
• SILICIC VOLCANISM AS A TRACER FOR COLUMBIA RIVER FLOOD BASALT VOLCANISM
  3 Continental Mafic Volcanism I: Honoring the Career of Vic Camp
  Wednesday, 15 May 2024

  8:00 AM - 12:00 PM

  Meeting Room 1
• MAGMA EVOLUTION AND ERUPTIVE HISTORY OF THREE FINGERED JACK: A DISSECTED MAFIC COMPOSITE VOLCANO IN THE CENTRAL OREGON HIGH CASCADES
  9 New Developments in the Magmatic Drivers of Cascades Volcanism (Posters)
  Wednesday, 15 May 2024

  9:00 AM - 5:30 PM

  Grand Ballroom
• MAXIMIZING THE LEGACY: MINING THE COLUMBIA RIVER BASALT GROUP DATA AND SAMPLE ARCHIVE
  16 Continental Mafic Volcanism II: Honoring the Career of Vic Camp
  Wednesday, 15 May 2024

  1:30 PM - 5:30 PM

  Meeting Room 1

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2023

• PICTURE GORGE BASALT (PGB) VERSUS PGB-LIKE BASALT: A STATISTICAL AND ELEMENTAL EVALUATION
  T200 Creative Contributions in Volcanology and Petrology III: In Honor of Katharine V. Cashman, Recipient of the 2023 Distinguished Geological Career Award from the Mineralogy, Geochemistry, Petrology and Volcanology Division
  Tuesday, 17 October 2023

  1:30 PM - 5:30 PM

  319
• THREE FINGERED JACK: A DISSECTED MAFIC COMPOSITE VOLCANO IN THE CENTRAL OREGON CASCADES
  36 Graduate Student Research (Posters)
  Friday, 19 May 2023

  8:00 AM - 6:00 PM

  Cargo Room
• THE SLIP HISTORY AND HOLOCENE ACTIVITY OF THE STRAWBERRY FAULT IN OREGON'S BLUE MOUNTAINS
  38 At the Crossroads—Addressing Geological Questions and Complexities Near the Boundary of the Basin & Range, Cascadia, and/or Sierra Nevada Provinces
  Friday, 19 May 2023

  1:30 PM - 4:00 PM

  Whitney Peak Ballroom 2

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2022

• COMPOSITIONS AND AGES OF DIKES FROM THE NORTHERN AND SOUTHERN PORTIONS OF THE CHIEF JOSEPH DIKE SWARM
  T172 The Legacy of Kenneth L. Pierce: Interdisciplinary Studies along the Track of the Yellowstone Hotspot and Beyond (Posters)
  Tuesday, 11 October 2022

  9:00 AM - 1:00 PM

  Exhibit Hall F
• THE PICTURE GORGE AND STEENS BASALT: A TALE OF TWO MAGMATIC TRANSPORTATION AND STORAGE SYSTEMS
  T75 The Legacy of Kenneth L. Pierce: Interdisciplinary Studies along the Track of the Yellowstone Hotspot and Beyond I
  Monday, 10 October 2022

  8:00 AM - 12:00 PM

  605

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2021

• IMPLICATIONS OF CASCADES FRONTAL ARC (FA) MAGMATISM - BORING VOLCANIC FIELD
  T203 The Life and Times of Arc Volcanoes from Bottom to Top I
  Wednesday, 13 October 2021

  8:00 AM - 12:00 PM

  A106
• NEW GEOLOGIC MAPPING IN LOGAN VALLEY WEST AND MAGPIE TABLE QUADS IN THE NE HARNEY BASIN CORRIDOR, EASTERN OREGON, PROVIDES IMPORTANT LOCAL DATA FOR THE MAGMATIC HISTORY OF THE STRAWBERRY VOLCANICS
  T195 Best Student Geologic Map Competition (Posters)
  Tuesday, 12 October 2021

  2:30 PM - 6:30 PM

  Exhibit Hall A
• A NEWLY DOCUMENTED MAJOR MID-MIOCENE RHYOLITE FIELD ASSOCIATED WITH COLUMBIA RIVER BASALT MAGMATISM, EASTERN OREGON, USA: THE STRAWBERRY RHYOLITES
  T196 Mapping the West: Understanding of the Geologic History of Volcanic Terranes (Posters)
  Tuesday, 12 October 2021

  2:30 PM - 6:30 PM

  Exhibit Hall A
• THE PROLIFIC ~300K LONG ERUPTIVE HISTORY OF THE MAHOGANY MOUNTAIN – THREE FINGERS RHYOLITE FIELD, EASTERN OREGON
  T67 From the Afar Rift to Alaskan Arcs (and the Oregon Plateau in between): Honoring the Career and Contributions of William K. Hart
  Monday, 11 October 2021

  8:00 AM - 12:00 PM

  Portland Ballroom 254 (Hybrid Room)
• NEWLY DISCOVERED PERIODICITY IN MIOCENE, HIGH LAVA PLAINS AND CO-CRBG RHYOLITES OF EASTERN OREGON TIED TO COEVAL BASALT MAGMATISM AND REGIONAL EXTENSION EVENTS
  T67 From the Afar Rift to Alaskan Arcs (and the Oregon Plateau in between): Honoring the Career and Contributions of William K. Hart
  Monday, 11 October 2021

  8:00 AM - 12:00 PM

  Portland Ballroom 254 (Hybrid Room)
• LATE CENOZOIC MAGMATISM OF THE NORTHWESTERN U.S. – THE ROLE OF SUB-CONTINENTAL LITHOSPHERIC MANTLE (SCLM)
  T67 From the Afar Rift to Alaskan Arcs (and the Oregon Plateau in between): Honoring the Career and Contributions of William K. Hart
  Monday, 11 October 2021

  8:00 AM - 12:00 PM

  Portland Ballroom 254 (Hybrid Room)
• IDENTITY OF CRBG LAVAS IN THE GREATER VALE AREA, EASTERN OREGON: IMPLICATIONS FOR VENTING GRANDE RONDE BASALT (GRB) UNITS LOCALLY, WITHOUT LATERAL CONNECTION TO MAIN GRB UNITS
  T26 From the Afar Rift to Alaskan Arcs (and the Oregon Plateau in between): Honoring the Career and Contributions of William K. Hart (Posters)
  Sunday, 10 October 2021

  9:00 AM - 1:00 PM

  Exhibit Hall A
• THE SIGNIFICANCE OF GEOCHEMISTRY AND ERUPTIVE TIMING IN EXTENDING SPATIAL DISTRIBUTION AND EVALUATING STRATIGRAPHIC CORRELATION OF THE PICTURE GORGE BASALT
  T26 From the Afar Rift to Alaskan Arcs (and the Oregon Plateau in between): Honoring the Career and Contributions of William K. Hart (Posters)
  Sunday, 10 October 2021

  9:00 AM - 1:00 PM

  Exhibit Hall A
• EVALUATION OF THE SLIP HISTORY AND HOLOCENE ACTIVITY OF FAULTS IN THE STRAWBERRY MOUNTAINS, GRANT COUNTY, 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
• ASSESSING SPACE AND TIME TRENDS IN MIOCENE CO-CRBG RHYOLITES AND RHYOLITES OF THE HIGH LAVA PLAINS TREND OF EASTERN OREGON
  14 Quaternary Volcanic Centers of the Cordillera
  Friday, 14 May 2021

  8:30 AM - 12:30 PM

  Mackay School of Earth Sciences & Engineering Room
• STRATIGRAPHY OF THE SUCCOR CREEK AREA: UPDATING THE EXPLOSIVE AND EFFUSIVE CHRONOLOGY AT THE MAHOGANY MOUNTAIN – THREE FINGERS RHYOLITE FIELD
  14 Quaternary Volcanic Centers of the Cordillera
  Friday, 14 May 2021

  8:30 AM - 12:30 PM

  Mackay School of Earth Sciences & Engineering Room
• OWYHEE BASALT - DEVELOPMENT OF CALC-ALKALINE VOLCANISM ON THE HEELS OF THOLEIITIC FLOOD BASALTS OF THE COLUMBIA RIVER PROVINCE
  17 Physical and Chemical Processes of Arc Magmatism and Their Impacts on Crustal Evolution
  Friday, 14 May 2021

  8:30 AM - 12:30 PM

  Desert Research Institute Room
• COMPOSITIONS OF DIKES FROM THE NORTHERN AND SOUTHERN PORTIONS OF THE CHIEF JOSEPH DIKE SWARM
  17 Physical and Chemical Processes of Arc Magmatism and Their Impacts on Crustal Evolution
  Friday, 14 May 2021

  8:30 AM - 12:30 PM

  Desert Research Institute Room
• NEW PERSPECTIVES ON PROLIFIC AND VOLUMINOUS RHYOLITE VOLCANISM OF THE MAHOGANY MOUNTAIN—THREE FINGERS RHYOLITE FIELD, EASTERN OREGON
  14 Quaternary Volcanic Centers of the Cordillera
  Friday, 14 May 2021

  8:30 AM - 12:30 PM

  Mackay School of Earth Sciences & Engineering Room

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2020

• LATE MIOCENE XENOCRYST-BEARING LAVAS ON GREEN RIDGE, CENTRAL OREGON CASCADE RANGE: IMPLICATIONS FOR THE FORMATION OF PROTEROZOIC MASSIF ANORTHOSITE
  28 D18. Petrology, Igneous/Metamorphic
  Monday, 26 October 2020

  5:30 PM - 8:00 PM

  Meeting Rooms
• IDENTITY OF CRBG LAVAS IN THE GREATER VALE AREA, EASTERN OREGON: IMPLICATIONS FOR VENTING GRANDE RONDE BASALT (GRB) UNITS LOCALLY, WITHOUT LATERAL CONNECTION TO MAIN GRB UNITS
  7 D4. Petrology and Volcanology (Posters)
  Tuesday, 12 May 2020

  9:00 AM - 6:00 PM

  Fountain Ballroom

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2019

• NEW GEOLOGIC MAPPING ALONG THE NE HARNEY BASIN CORRIDOR, EASTERN OREGON PROVIDES IMPORTANT LOCAL DATA FOR REGIONAL MAGMATIC HISTORIES
  40 Geologic Maps: Essential Framework Tools Used to Solve Practical Earth Science Problems (Posters)
  Friday, 17 May 2019

  9:00 AM - 3:30 PM

  Exhibit Hall B
• MAGMATIC DIVERSITY IN THE BORING VOLCANIC FIELD, PORTLAND BASIN, OREGON AND WASHINGTON: IMPLICATIONS FOR SUBDUCTION ZONE MAGMATISM
  33 Magmatism in the Cascades: Variations in Space and Time
  Friday, 17 May 2019

  8:00 AM - 12:00 PM

  Room C124
• MINERALOGICAL, GEOCHEMICAL, AND PHYSICAL CHARACTERIZATION OF MID-MIOCENE RHYOLITES IN EASTERN OREGON
  25 Field, Petrological, and Geochemical Constraints on Magmatic Systems in the Cordillera (Posters)
  Thursday, 16 May 2019

  9:00 AM - 6:00 PM

  Exhibit Hall B
• GENERATION OF A-TYPE RHYOLITE FROM MELTING OF S-/I-TYPE SOURCES DURING HYBRIDIZATION PROCESSES WITH THOLEIITIC MAGMAS
  4 The Yellowstone Hotspot Province: Prehistory, Timing, Extent, Volcanic Products, and Hydrothermal Consequences
  Wednesday, 15 May 2019

  8:00 AM - 12:00 PM

  Room C123
• ASSESSING THE SPACE AND TIME CORRELATION BETWEEN CO-CRBG RHYOLITES AND RHYOLITES OF THE HIGH LAVA PLAINS TREND IN EASTERN OREGON
  9 The Yellowstone Hotspot Province: Prehistory, Timing, Extent, Volcanic Products, and Hydrothermal Consequences (Posters)
  Wednesday, 15 May 2019

  9:00 AM - 6:00 PM

  Exhibit Hall B
• REVISING AGE AND DISTRIBUTION OF THE PICTURE GORGE BASALT AND THEIR IMPLICATION FOR EVOLUTION MODELS OF COLUMBIA RIVER BASALT VOLCANISM
  9 The Yellowstone Hotspot Province: Prehistory, Timing, Extent, Volcanic Products, and Hydrothermal Consequences (Posters)
  Wednesday, 15 May 2019

  9:00 AM - 6:00 PM

  Exhibit Hall B
• MID-MIOCENE ICELANDITES OF EASTERN OREGON: MAGMATIC LINEAGE TO MAIN PHASE CRBG WITH CONSTRAINTS ON THEIR CRUSTAL STORAGE SITES
  9 The Yellowstone Hotspot Province: Prehistory, Timing, Extent, Volcanic Products, and Hydrothermal Consequences (Posters)
  Wednesday, 15 May 2019

  9:00 AM - 6:00 PM

  Exhibit Hall B
• COMPOSITION OF MAFIC FIAMME OF THE RHYOLITIC BUCHANAN TUFF, EASTERN OREGON: UNDERSTANDING MAGMAS THAT DRIVE SILICIC MAGMATISM
  11 Undergraduate Research (Posters)
  Wednesday, 15 May 2019

  9:00 AM - 6:00 PM

  Exhibit Hall B
• THE GENERATION OF HOT-SPOT RELATED CALC-ALKALINE ANDESITES OF THE STRAWBERRY VOLCANICS, NORTHEAST OREGON
  4 The Yellowstone Hotspot Province: Prehistory, Timing, Extent, Volcanic Products, and Hydrothermal Consequences
  Wednesday, 15 May 2019

  8:00 AM - 12:00 PM

  Room C123
• OLIGOCENE BASALTS OF EASTERN OREGON AS PROBES INTO A PRE-CRBG MANTLE IN EASTERN OREGON AND POSSIBLY CONNECTION TO A NEW “RE-EMERGING PLUME MODEL”
  4 The Yellowstone Hotspot Province: Prehistory, Timing, Extent, Volcanic Products, and Hydrothermal Consequences
  Wednesday, 15 May 2019

  8:00 AM - 12:00 PM

  Room C123

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2018

• INSIGHTS INTO THE MAGMATIC ASSEMBLY OF A VOLUMINOUS, LOW δ18O, AND STRONGLY TRACE ELEMENT ZONED HIGH-SILICA RHYOLITE BODY: THE DEVINE CANYON TUFF, OREGON
  T89 Magmas Assemble! Petrologic, Geochemical, Chronologic, and Geophysical Insights into the Architecture and Timescales of Magmatic Systems
  Monday, 5 November 2018

  8:00 AM - 12:00 PM

  Room 240-241

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2017

• THE CASTLE ROCK AND IRONSIDE MOUNTAIN CALDERAS, EASTERN OREGON: TWO ADJACENT VENTING SITES FOR UNITS OF THE 16 – 15 MA DINNER CREEK TUFF
  T393 Recent Advances in Understanding Volcanism of the Yellowstone Hotspot (Posters)
  Wednesday, 25 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• AREAL EXTENT AND VOLUMES OF THE DINNER CREEK TUFF UNITS, EASTERN OREGON BASED ON LITHOLOGY AND FELDSPAR COMPOSITION
  T393 Recent Advances in Understanding Volcanism of the Yellowstone Hotspot (Posters)
  Wednesday, 25 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• DYNAMICS OF MAGMA RECHARGE AND MIXING AT MOUNT HOOD, OREGON - INSIGHTS FROM ENCLAVE-BEARING LAVAS
  392 D37. Volcanology (Posters)
  Wednesday, 25 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• COLUMBIA RIVER RHYOLITES: AGE-DISTRIBUTION PATTERNS AND THEIR IMPLICATIONS FOR ARRIVAL, LOCATION, AND DISPERSION OF FLOOD BASALT MAGMAS IN THE CRUST
  T239 Recent Advances in Understanding Volcanism of the Yellowstone Hotspot
  Tuesday, 24 October 2017

  1:30 PM - 5:30 PM

  Tahoma 3
• PICTURE GORGE BASALT, EASTERN OREGON: EXTENDED DISTRIBUTION AND PETROGENETIC CONNECTIONS TO STEENS BASALT AND STRAWBERRY VOLCANICS
  T239 Recent Advances in Understanding Volcanism of the Yellowstone Hotspot
  Tuesday, 24 October 2017

  1:30 PM - 5:30 PM

  Tahoma 3

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2016

• FLOW UNITS OF THE LITTLEFIELD RHYOLITE, EASTERN OREGON, CONSTRAINING AGE AND STORAGE SITES OF GRANDE RONDE BASALT MAGMAS
  28 Geochronology of Igneous Processes (Posters)
  Thursday, 19 May 2016

  8:00 AM - 5:00 PM

  Clearwater Room
• AGES AND PETROGENESIS OF RHYOLITES AT TOWER MOUNTAIN CALDERA, EASTERN OREGON
  28 Geochronology of Igneous Processes (Posters)
  Thursday, 19 May 2016

  8:00 AM - 5:00 PM

  Clearwater Room
• CO-CRBG RHYOLITE VOLCANISM REASSESSED
  3 Cenozoic Volcanism in the Inland Northwestern United States
  Wednesday, 18 May 2016

  8:00 AM - 12:00 PM

  Classroom 029
• EARLY RESULTS ON MIOCENE BASALTIC LAVAS EXPOSED IN THE INTERVENING AREA OF PICTURE GORGE AND STEENS BASALT OF THE CRBG, EASTERN OREGON
  3 Cenozoic Volcanism in the Inland Northwestern United States
  Wednesday, 18 May 2016

  8:00 AM - 12:00 PM

  Classroom 029
• THE STRAWBERRY VOLCANICS: A NEW UNIT OF THE COLUMBIA RIVER BASALT GROUP
  3 Cenozoic Volcanism in the Inland Northwestern United States
  Wednesday, 18 May 2016

  8:00 AM - 12:00 PM

  Classroom 029

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2015

• RHYOLITES OF DOOLEY MOUNTAIN AND BUCHANAN, OREGON: SILICIC VOLCANISM AT THE NORTHERN AND WESTERN EXTENT OF THE COLUMBIA RIVER BASALT RHYOLITE FLARE-UP
  15 Igneous and Metamorphic Petrology (Posters)
  Tuesday, 12 May 2015

  1:30 PM - 5:30 PM

  Atrium/Hallway

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2014

• THERMODYNAMIC EVALUATION OF THE ROLE OF MAGMA MIXING IN THE 1968-2010 ERUPTION OF ARENAL VOLCANO, COSTA RICA USING THE MAGMA CHAMBER SIMULATOR
  T212 Continental Arcs #2: Processes at Arc to Magma Reservoir- Scale and Connections from Magma Source to Volcano (Posters)
  Tuesday, 21 October 2014

  9:00 AM - 6:30 PM

  Exhibition Hall C

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2013

• VARIABLE AND HIGH 87SR/86SR DOMAINS WEST OF THE TERRANE-CRATONIC LITHOSPHERE TRANSITION AS DEDUCED FROM MID-MIOCENE SILICIC VOLCANISM IN EASTERN OREGON
  129 Volcanology (Posters)
  Monday, 28 October 2013

  9:00 AM - 6:30 PM

  Hall D
• 87SR/86SR OF MID-MIOCENE SILICIC VOLCANISM IN EASTERN OREGON: EVIDENCE FOR VARIABLE AND HIGH SR DOMAINS WEST OF THE TERRANE-CRATONIC LITHOSPHERE TRANSITION
  9 Volcanology, Volcanic Rocks, Volcanic Petrogenesis (Posters)
  Monday, 20 May 2013

  1:30 PM - 5:30 PM

  Salon B/C
• REVISITING VOLCANOLOGY AND COMPOSITION OF RHYOLITES AND ASSOCIATED REE RICH MAFIC CLASTS OF THE THREE FINGERS CALDERA, SE OREGON
  9 Volcanology, Volcanic Rocks, Volcanic Petrogenesis (Posters)
  Monday, 20 May 2013

  1:30 PM - 5:30 PM

  Salon B/C

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2012

• VARIATIONS IN THE OCCURRENCE AND MOBILITY OF ARSENIC IN ASH-FLOW TUFFS
  T13 Arsenic: Fate and Transport in Natural Waters and Aquifers from Basin to Pore-Space Scale I
  Sunday, 4 November 2012

  8:00 AM - 12:00 PM

  213D

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2011

• THE DINNER CREEK TUFF AND OTHER MID-MIOCENE RHYOLITES AT THE MAGMATIC FOCAL ZONE OF THE COLUMBIA RIVER BASALT GROUP
  3 Petrologic and Geodynamic Perspectives on Non-Arc Volcanism in the Western United States
  Wednesday, 18 May 2011

  8:00 AM - 12:00 PM

  Juniper

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2009

• OLIVINE AND SPINEL SYSTEMATICS OF BORING VOLCANIC FIELD (BVF) BASALTS: EVIDENCE FOR MAGMA SOURCE VARIATIONS AND INTERACTION AMONG BASALTIC MAGMAS
  T110 Multidisciplinary Studies of Cascade Volcanism and its Tectonic Setting (Posters)
  Monday, 19 October 2009

  9:00 AM - 6:00 PM

  Hall A
• MINERAL COMPOSITION AND PHENOCRYST ZONING IN PRIMITIVE ABSAROKITE AT PEPPER MOUNTAIN, BORING VOLCANIC FIELD (BVF), OREGON
  T110 Multidisciplinary Studies of Cascade Volcanism and its Tectonic Setting (Posters)
  Monday, 19 October 2009

  9:00 AM - 6:00 PM

  Hall A
• MINERALOGICAL EVIDENCE FOR MAGMA SOURCES, MIXING AND ASCENT OF BASALTIC TO ANDESITIC LAVAS OF THE BORING VOLCANIC FIELD (BVF), PORTLAND BASIN, OREGON
  T65 Multidisciplinary Studies of Cascade Volcanism and its Tectonic Setting II
  Sunday, 18 October 2009

  1:30 PM - 5:30 PM

  E143/144
• MIXING COMPONENTS AND HYBRIDIZATION PROCESSES OF KALAMA PERIOD INTERMEDIATE MAGMAS FROM MOUNT ST. HELENS: EVIDENCE FROM MAFIC PHENOCRYSTS
  T65 Multidisciplinary Studies of Cascade Volcanism and its Tectonic Setting II
  Sunday, 18 October 2009

  1:30 PM - 5:30 PM

  E143/144
• OCCURRENCE AND DISTRIBUTION OF RHYOLITE MAGMA TYPES IN NE OREGON DURING JOHN DAY TIME
  33 Petrology, Igneous (Posters)
  Sunday, 18 October 2009

  9:00 AM - 6:00 PM

  Hall A
• A PETROLOGIC OVERVIEW OF THE BORING VOLCANIC FIELD, CASCADE RANGE, USA
  T65 Multidisciplinary Studies of Cascade Volcanism and its Tectonic Setting II
  Sunday, 18 October 2009

  1:30 PM - 5:30 PM

  E143/144

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2008

• EVOLUTION OF PHENOCRYSTS AS A RESULT OF MAGMA MIXING AT MOUNT ST. HELENS VOLCANO, WASHINGTON
  30 Igneous/Metamorphic Petrology, and Volcanology (Posters)
  Friday, 21 March 2008

  8:00 AM - 12:00 PM

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2007

• NEOGENE BASALTIFICATION OF THE CRUST AT THE NORTHWESTERN MARGIN OF THE BASIN AND RANGE PROVINCE: MAGMATIC ACCOMMODATION OF EXTENSION?
  8 The Evolution of Transform Faulting and Propagation of Extension and Volcanism: The West-northwest Margin of the Basin and Range Province, USA
  Friday, 4 May 2007

  1:00 PM - 5:30 PM

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2005

• GEOCHEMICAL CHARACTERISTICS OF BASALTIC ROCKS FROM THE WUKSI VOLCANIC CHAIN, CASCADE RANGE NEAR LA PINE
  24 Igneous Petrology/Volcanology (Posters)
  Saturday, 30 April 2005

  9:00 AM - 5:00 PM
• LITHOLOGY AND PETROGRAPHY OF THE WUKSI VOLCANIC CHAIN, CENTRAL OREGON CASCADES
  10 Undergraduate Research (Posters)
  Friday, 29 April 2005

  9:00 AM - 5:00 PM

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2004

• THE RATTLESNAKE TUFF, OREGON: AN EXCEPTIONAL RECORD OF A VOLUMINOUS HIGH-SILICA RHYOLITE SYSTEM
  14 Large-volume Ryolites of the Western USA: A Tribute to Bill Bonnichsen
  Monday, 3 May 2004

  1:00 PM - 5:00 PM

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2003

• MAFIC MAGMATISM AND NEW PERSPECTIVES ON CASCADIA SUBDUCTION
  T251 The Cascade Volcanic Arc System
  Wednesday, 5 November 2003

  1:30 PM - 5:30 PM

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2002

• PROCESSES RELATING TRACHY- AND CALC-ALKALINE INTERMEDIATE ROCKS TO PRIMITIVE THOLEIITES WITHIN A STRONGLY DIVERGENT SUITE FROM THE HARNEY BASIN, OREGON
  20 Pacific Northwest Geology East of the Cascades: In Honor of George W. Walker
  Tuesday, 14 May 2002

  8:00 AM - 12:00 PM
• MAGMATIC ENVIRONMENT PRODUCING TEXTURAL AND COMPOSITIONAL ZONING IN PLAGIOCLASE PHENOCRYSTS OF THE 1968-1996 ERUPTION AT ARENAL VOLCANO, COSTA RICA
  1 Volcanology, Volcanism, and Volcanic Rocks (Posters)
  Monday, 13 May 2002

  8:00 AM - 12:00 PM
• COMPOSITIONAL STRATIGRAPHY THROUGH A MULTICYCLIC, VIGOROUS AND DIVERSE CALDERA CENTER: THE SAN LUIS CALDERA COMPLEX, SAN JUAN VOLCANIC FIELD, COLORADO
  1 Volcanology, Volcanism, and Volcanic Rocks (Posters)
  Monday, 13 May 2002

  8:00 AM - 12:00 PM
• ORIGIN OF THE CE ANOMALY IN A GREEN RIDGE LAVA FLOW, CASCADE RANGE, OREGON
  14 Undergraduate Research (Posters)
  Monday, 13 May 2002

  1:30 PM - 5:30 PM

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Date Unknown

• THE MINERALOGY OF MONOTONOUS BASALTIC ANDESITES OF THE CURRENT ERUPTION OF ARENAL VOLCANO, COSTA RICA: CONSTRAINTS FOR TIMING AND INTERACTION OF COMPOSITIONALLY CONTRASTING EVOLVED AND MAFIC MAGMAS
  152 Petrology, Igneous (Posters)
• MAFIC INCLUSIONS IN MOUNT HOOD LAVAS: LINKS TO PARENTAL MAGMAS OF A LONG-LIVED ANDESITIC VOLCANO
  152 Petrology, Igneous (Posters)
• SULFUR CONTENT AND ZONATION IN APATITE AS TOOL TO RECONSTRUCT OXIDIZED SULFUR BUDGETS IN SILICIC MAGMAS
  42 Undergraduate Research (Posters)
• A PETROLOGIC OVERVIEW OF THE BORING VOLCANIC FIELD, CASCADE RANGE, USA
  17 Hazards and Resources in the Portland, Tualatin, and Willamette Basins of Oregon and Washington (Posters)