Gary Michelfelder
Missouri State University, Springfield, MO
Activity
2025
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MAGMA RESIDENCE AND STORAGE CONDITIONS AT LARGE VOLUME DOMES IN THE ANDEAN CENTRAL VOLCANIC ZONE, CHILE
4 D2. Igneous and Metamorphic Processes — From Kimberlites to Meteorites (Posters)Sunday, 9 March 20251:30 PM - 5:00 PMLower Level Lobby
2024
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EXAMINING PUMICES AND LAVA FLOWS FROM SOCOMPA VOLCANO IN THE CENTRAL ANDES
T254 Mineralogy, Geochemistry, Petrology, and Volcanology Student Session (Posters)Wednesday, 25 September 20248:00 AM - 5:30 PMHall D
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DYNAMICS AND TIMESCALES OF MAGMA RESIDENCE BENEATH AT SOCOMPA VOLCANO, SOUTHERN CENTRAL ANDES, CHILE
T199 Subduction Zones and Their Volcanic Arcs: Initiation and Evolution, Structure, Metamorphism, Magmatism (Posters)Tuesday, 24 September 20248:00 AM - 5:30 PMHall D
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MINERALOGICAL AND GEOCHEMICAL CHARACTERIZATION OF LINE CREEK PLATEAU PORPHYRY OUTCROPS (BEARTOOTH MOUNTAINS) AND FRONTIER FORMATION PORPHYRY COBBLES (BIGHORN BASIN), MONTANA AND WYOMING
11 Structure and Tectonics of the North American Cordillera and Rocky Mountains (Posters)Wednesday, 15 May 20249:00 AM - 5:30 PMGrand Ballroom
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MULTIPLE RESURGENCE EVENTS OF THE BURSUM CALDERA, SW NEW MEXICO, RECORDED IN THE FANNEY RHYOLITE
30 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate Researchers (Posters)Tuesday, 23 April 20248:00 AM - 12:00 PMGrand Ballroom, Oasis CC
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CLINOPYROXENE, OLIVINE MELT INCLUSION, AND BULK ROCK Sr, Nd AND Pb ISOTOPE COMPOSITIONS OF PRIBILOF ISLANDS BASALTS: INSIGHT INTO EARLY MAGMA CHAMBER PROCESSES
19 Topics in Volcanology, Geochemistry, and Igneous/Metamorphic PetrologyMonday, 22 April 20241:30 PM - 5:30 PMFiji Ballroom, Oasis CC
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PROLONGED MAGMA RESIDENCE BENEATH AT SOCOMPA VOLCANO, SOUTHERN CENTRAL ANDES, CHILE
19 Topics in Volcanology, Geochemistry, and Igneous/Metamorphic PetrologyMonday, 22 April 20241:30 PM - 5:30 PMFiji Ballroom, Oasis CC
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SHORT ERUPTION WINDOWS FOR LARGE VOLUME DOMES IN THE ALTIPLANO PUNA VOLCANIC COMPLEX, CHILE
2 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate ResearchersSunday, 21 April 20241:30 PM - 5:30 PMFiji Ballroom, Oasis CC
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SPACE-TIME EVOLUTION OF MESOPROTEROZOIC GRANITES FROM THE ST. FRANCOIS MOUNTAIN TERRANE, SOUTHEAST MISSOURI: INSIGHTS FROM HORNBLENDE AND ZIRCON
2 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate ResearchersSunday, 21 April 20241:30 PM - 5:30 PMFiji Ballroom, Oasis CC
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MILLION-YEAR MELT-PRESENCE IN MOGOLLON-DATIL VOLCANIC FIELD RHYOLITES: CONSTRAINING THE HISTORIES OF THE BURSUM CALDERA RESURGENT DOMES
2 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate ResearchersSunday, 21 April 20241:30 PM - 5:30 PMFiji Ballroom, Oasis CC
2023
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MILLION-YEAR MELT-PRESENCE IN MOGOLLON-DATIL VOLCANIC FIELD RHYOLITES: CONSTRAINING THE HISTORIES OF THE BURSUM CALDERA RESURGENT DOMES
T186 Mineralogy, Geochemistry, Petrology, and Volcanology Division: Session for Graduate and Undergraduate Students (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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SHORT ERUPTION WINDOWS FOR LARGE VOLUME DOMES IN THE ALTIPLANO PUNA VOLCANIC COMPLEX, CHILE
165 D21. Recent Advances in Volcanology (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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MELT EXTRACTION IN A TRANSCRUSTAL MAGMATIC SYSTEM AT CERRO UTURUNCU, BOLIVIA: INSIGHTS FROM ZIRCON AND PLAGIOCLASE
T136 The Andes from Top to BottomMonday, 16 October 20231:30 PM - 5:30 PM326
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ANALYSIS OF ENIGMATIC PORPHYRY COBBLES IN THE CA. 90 MA FRONTIER FORMATION, EASTERN BIGHORN BASIN, WYOMING
3 The Laramide Belt: End to End (Posters)Tuesday, 23 May 20238:00 AM - 6:00 PMC/D Ballroom
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GEOCHEMICAL EVIDENCE OF MIOCENE LITHOSPHERIC THINNING IN SOUTHERN NEW MEXICO: IMPLICATIONS FOR THE INITIATION OF RIFTING OF THE RIO GRANDE RIFT
31 Reading the Record of Tectonic Processes through Diverse Investigations of Igneous and Metamorphic RocksFriday, 5 May 20231:30 PM - 5:30 PMEC 410
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INSIGHTS INTO MAGMA STORAGE AND EVOLUTION AT LICANCABUR VOLCANO, CENTRAL ANDES, CHILE
35 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate Researchers (Posters)Friday, 5 May 20231:30 PM - 5:30 PMEC 215
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SHORT ERUPTION WINDOWS FOR LARGE VOLUME DOMES IN THE ALTIPLANO PUNA VOLCANIC COMPLEX, CHILE
35 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate Researchers (Posters)Friday, 5 May 20231:30 PM - 5:30 PMEC 215
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MILLION-YEAR MELT-PRESENCE IN MOGOLLON DATIL VOLCANIC FIELD RHYOLITES: CONSTRAINING THE HISTORIES OF THE BURSUM CALDERA RESURGENT DOMES
35 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate Researchers (Posters)Friday, 5 May 20231:30 PM - 5:30 PMEC 215
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THE RELATIONSHIP OF EPITHERMAL AU-AG-CU BEARING FLUIDS TO MAGMATISM IN THE MOGOLLON DATIL VOLCANIC FIELD, NEW MEXICO
35 Future Directions in Mineralogy and Petrology: A Session for Undergraduate and Graduate Researchers (Posters)Friday, 5 May 20231:30 PM - 5:30 PMEC 215
2022
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DYNAMICS AND TIMESCALES OF MAGMATIC PROCESSES AT UTURUNCU VOLCANO, BOLIVIA
T171 Source to Surface Magma Thermodynamics and Transport: Interdisciplinary Approaches to Documenting the How, Where, and When of Magma Generation and Evolution during Ascent, Storage, and Eruption (Posters)Tuesday, 11 October 20229:00 AM - 1:00 PMExhibit Hall F
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MODELING CRYSTAL RESIDENCE TIMES RECORDED IN PLAGIOCLASE, LÁSCAR VOLCANO, CENTRAL ANDES VOLCANIC ZONE
T171 Source to Surface Magma Thermodynamics and Transport: Interdisciplinary Approaches to Documenting the How, Where, and When of Magma Generation and Evolution during Ascent, Storage, and Eruption (Posters)Tuesday, 11 October 20229:00 AM - 1:00 PMExhibit Hall F
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RECONSTRUCTION OF PRE-ERUPTIVE MAGMAS FROM LASCAR VOLCANO (NE CHILE) USING APATITE AS COMPOSITIONAL PROXY
T201 Mineralogy, Petrology, and Geochemistry: New Approaches to Harnessing the Multidimensionality of Complex Systems (Posters)Tuesday, 11 October 20222:00 PM - 6:00 PMExhibit Hall F
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RAPID REJUVENATION AND MAGMA STORAGE CONDITIONS AT VOLCÁN OLLAGÜE, ANDEAN CENTRAL VOLCANIC ZONE, CHILE-BOLIVIA
T82 Source to Surface Magma Thermodynamics and Transport: Interdisciplinary Approaches to Documenting the How, Where, and When of Magma Generation and Evolution during Ascent, Storage, and Eruption IMonday, 10 October 20228:00 AM - 12:00 PM502
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TRACKING MAGMATIC PROCESSES USING ZIRCON TRACE ELEMENT COMPOSITION AT CERRO UTURUNCU, BOLIVIA
T124 Sigma Gamma Epsilon Student Research Exhibition (Posters)Monday, 10 October 20222:00 PM - 6:00 PMExhibit Hall F
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ELEMENTAL ANALYSIS OF THE NORTHVIEW FORMATION CONSTRAINS DEPOSITIONAL CONDITIONS
T126 Showcase of Undergraduate Research Posters by 2YC and 4YCU Geoscience Students (Posters)Monday, 10 October 20222:00 PM - 6:00 PMExhibit Hall F
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EXPERIMENTAL DETERMINATION OF ZN, K AND RB DIFFUSION COEFFICIENTS IN OLIVINE AND THE ROLE OF DIFFUSION IN MODERATELY VOLATILE ELEMENT FRACTIONATION IN THE EARLY SOLAR SYSTEM
64 D28. Recent Advances in Planetary Geology (Posters)Sunday, 9 October 20222:00 PM - 6:00 PMExhibit Hall F
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MANTLE MAGMA SOURCES FOR SMALL VOLUME MONOGENETIC BASALTS IN THE PRIBILOF ISLANDS, ALASKA: EVIDENCE FROM δ18O VALUES, SR ISOTOPE RATIOS AND TRACE ELEMENT CONTENTS
29 Melt, Emplace, Mix, Erupt! (MEME) Investigating the Dynamics of Magmatic Systems via MicroanalysisFriday, 8 April 20228:00 AM - 9:15 AMNorth Meeting Room 211
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GEOCHEMICAL COMPARISON OF THE CHASCA ORKHO SERIES AND MAGMATIC INCLUSIONS AT VOLCÁN OLLAGÜE, CENTRAL VOLCANIC ZONE, NORTHERN CHILE
31 D4. Mineralogy, Geochemistry, Petrology, and Volcanology (Posters)Friday, 8 April 20228:00 AM - 12:00 PMJunior Ballroom B
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LINKING VOLATILE BEHAVIOR AND ERUPTIVE STYLE IN CENTRAL ANDEAN VOLCANOES: THE CASES OF LASCAR AND UTURUNCU
51 Melt, Emplace, Mix, Erupt! (MEME) Investigating the Dynamics of Magmatic Systems via Microanalysis (Posters)Friday, 8 April 20221:30 PM - 5:30 PMJunior Ballroom B
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OPEN SYSTEM PROCESSES RECORDED BY PLAGIOCLASE DISEQUILIBRIUM, LASCAR VOLCANO, CENTRAL ANDES VOLCANIC ZONE, CHILE
51 Melt, Emplace, Mix, Erupt! (MEME) Investigating the Dynamics of Magmatic Systems via Microanalysis (Posters)Friday, 8 April 20221:30 PM - 5:30 PMJunior Ballroom B
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PLAGIOCLASE TRACE ELEMENT ZONING REVEALS CHANGES IN MAGMA STORAGE AT CERRO UTURUNCU
51 Melt, Emplace, Mix, Erupt! (MEME) Investigating the Dynamics of Magmatic Systems via Microanalysis (Posters)Friday, 8 April 20221:30 PM - 5:30 PMJunior Ballroom B
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U-PB GEOCHRONOLOGY OF TITANITE AND ZIRCON TO DATE METAMORPHIC RESET OF 1.6 GA METAMORPHIC PLUTONIC ROCKS NEAR BUENA VISTA, COLORADO
9 Undergraduate Research (Posters)Thursday, 7 April 20228:00 AM - 12:00 PMJunior Ballroom B
2021
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MAGMA ACCUMULATION AND EVOLUTION IN THE ANDEAN CENTRAL VOLCANIC ZONE: A MINERAL-SCALE PERSPECTIVE OF MAGMA HOMOGENIZATION
14 Quaternary Volcanic Centers of the CordilleraFriday, 14 May 20218:30 AM - 12:30 PMMackay School of Earth Sciences & Engineering Room
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MELT-ROCK REACTIONS RECORDED IN LHERZOLITE XENOLITHS FROM ST. GEORGE ISLAND, ALASKA: IMPLICATIONS FOR MAGMA HETEROGENEITY OF MONOGENETIC VOLCANIC FIELDS
17 Ultramafic and Mafic MagmatismTuesday, 20 April 20218:00 AM - 12:00 PMMissouri State University- Geography and Geology MS Program Room
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VARIATION IN OLIVINE TRACE ELEMENT CONTENTS REVEAL THE SIGNATURE OF DEEP MANTLE MELTING DURING THE ERUPTION OF THE MCCARTYS FLOW, ZUNI-BANDERA VOLCANIC FIELD, NEW MEXICO
17 Ultramafic and Mafic MagmatismTuesday, 20 April 20218:00 AM - 12:00 PMMissouri State University- Geography and Geology MS Program Room
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BIMODAL AND TEXTURALLY DISTINCT OLIVINE PHENOCRYSTS IN SMALL VOLUME MONOGENETIC VOLCANOES FROM THE PRIBILOF ISLANDS, ALASKA: IMPLICATIONS FOR MANTLE MELTING AND MAGMA STORAGE
17 Ultramafic and Mafic MagmatismTuesday, 20 April 20218:00 AM - 12:00 PMMissouri State University- Geography and Geology MS Program Room
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THERMAL GRADIENTS AND MAGMA HOST ROCK EQUILIBRATION INFERRED FROM INCLUSIONS IN THE RING PLUTONS OF THE BUTLER HILL CALDERA, ST. FRANCOIS MOUNTAINS, MISSOURI
10 Granites and Rhyolites as a Record of Crustal Magmatic ProcessesMonday, 19 April 20211:00 PM - 5:00 PMMissouri State University- Geography and Geology MS Program Room
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DISEQUILIBRIUM MELTING OF THE CONTINENTAL CRUST DURING EMPLACEMENT OF THE MT. PRINCETON BATHOLITH, CENTRAL COLORADO VOLCANIC FIELD
10 Granites and Rhyolites as a Record of Crustal Magmatic ProcessesMonday, 19 April 20211:00 PM - 5:00 PMMissouri State University- Geography and Geology MS Program Room
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PLAGIOCLASE ZONING AS AN INDICATOR OF MAGMA PROCESSES AT OLLAGÜE VOLCANO, ANDEAN CENTRAL VOLCANIC ZONE, CHILE
10 Granites and Rhyolites as a Record of Crustal Magmatic ProcessesMonday, 19 April 20211:00 PM - 5:00 PMMissouri State University- Geography and Geology MS Program Room
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PLAGIOCLASE ZONING AS AN INDICATOR OF MAGMA PROCESSES AT SAN PEDRO VOLCANO, CENTRAL VOLCANIC ZONE, CHILE
10 Granites and Rhyolites as a Record of Crustal Magmatic ProcessesMonday, 19 April 20211:00 PM - 5:00 PMMissouri State University- Geography and Geology MS Program Room
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TEXTURAL AND CHEMICAL VARIATION IN PLAGIOCLASE PHENOCRYSTS FROM THE POLÁN STAGE AND AUCANQUILCHA STAGE OF THE AUCANQUILCHA VOLCANIC COMPLEX, CHILE
10 Granites and Rhyolites as a Record of Crustal Magmatic ProcessesMonday, 19 April 20211:00 PM - 5:00 PMMissouri State University- Geography and Geology MS Program Room
2020
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MAGMA-WALL ROCK INTERACTION IN THE ST FRANCOIS MOUNTAINS, MISSOURI: UNRAVELLING MAGMATIC ARCHITECTURE USING MICROSTRUCTURES AND TRACE ELEMENT GEOCHEMISTRY
1 Recent Progress in Granites, Rhyolites, and Associated MagmatismMonday, 9 March 20208:00 AM - 12:00 PMMeeting Room 202AB
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PETROLOGY AND GEOCHEMISTRY OF THE 1.32 GA GRANITEVILLE GRANITE, ST FRANCOIS MOUNTAINS, SOUTHEAST MISSOURI
6 Recent Progress in Granites, Rhyolites, and Associated Magmatism (Posters)Monday, 9 March 20208:30 AM - 5:00 PMBallroom B
2019
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GEOLOGIC MAP OF THE BEARWALLOW MOUNTAIN 7.5’ QUADRANGLE, CATRON COUNTY, NEW MEXICO
T204 Best Student Geologic Mapping Competition (Posters)Tuesday, 24 September 20199:00 AM - 6:30 PMHall AB, North Building
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PETROGRAPHY AND PETROLOGY OF THE ALKALINE AND THOLEIITIC LAVAS FROM THE LA TETRA AREA, ZUNI-BANDERA VOLCANIC FIELD, NEW MEXICO
T183 Sigma Gamma Epsilon Student Research (Posters)Tuesday, 24 September 20199:00 AM - 6:30 PMHall AB, North Building
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CHEMICAL COMPOSITION OF WASTE ROCK DUMPS AND OTHER MINING-RELATED FEATURES ASSOCIATED WITH THE MOGOLLON MINING DISTRICT, NEW MEXICO
T183 Sigma Gamma Epsilon Student Research (Posters)Tuesday, 24 September 20199:00 AM - 6:30 PMHall AB, North Building
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VOLCANIC STRATIGRAPHY, STRUCTURE AND GEOCHRONOLOGY OF INTRA-CALDERA FILL IGNIMBRITES OF THE 28 MA BURSUM CALDERA, MOGOLLON DATIL VOLCANIC FIELD, NEW MEXICO
T183 Sigma Gamma Epsilon Student Research (Posters)Tuesday, 24 September 20199:00 AM - 6:30 PMHall AB, North Building
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MAGNETIC AND VLF-EM SURVEYS OF THE MOGOLLON MINING DISTRICT, CATRON COUNTY, NM: RECOMMENDATIONS FOR FUTURE MINERAL EXPLORATION
107 D10. Recent Advances in Geophysics/Geodynamics (Posters)Monday, 23 September 20199:00 AM - 6:30 PMHall AB, North Building
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MAGNETIC AND VLF-EM SURVEY OF THE BEARWALLOW MOUNTAIN QUADRNAGLE, CATRON COUNTY, NM: DOES MINERALIZATION EXIST WITHIN THE QUADRANGLE?
107 D10. Recent Advances in Geophysics/Geodynamics (Posters)Monday, 23 September 20199:00 AM - 6:30 PMHall AB, North Building
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MINERAL CHEMISTRY AND PETROLOGY OF RUBIO PEAK FORMATION, MOGOLLON DATIL VOLCANIC FIELD, NEW MEXICO
T51 Exploring Connections between Extension, Sedimentation, and Volcanism in the Rio Grande Rift (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
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TIMING AND SOURCE OF HYDROTHERMAL FLUIDS IN THE MOGOLLON MINING DISTRICT, CATRON COUNTY, NM
22 Cenozoic Magmatic and Tectonic Processes of Colorado–New Mexico: Understanding Voluminous Volcanism during the Transition from Laramide Contraction to Rio Grande Rift Extension (Posters)Tuesday, 26 March 20198:30 AM - 5:45 PMBig Basin/Kaw Nation Rooms
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PETROLOGY AND U-PB ZIRCON GEOCHRONOLOGY OF OLIGOCENE AND MIOCENE RHYOLITE TUFFS FROM THE NORTHERN MOGOLLON-DATIL VOLCANIC FIELD
22 Cenozoic Magmatic and Tectonic Processes of Colorado–New Mexico: Understanding Voluminous Volcanism during the Transition from Laramide Contraction to Rio Grande Rift Extension (Posters)Tuesday, 26 March 20198:30 AM - 5:45 PMBig Basin/Kaw Nation Rooms
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CHARACTERIZING THE MANTLE BENEATH THE SOUTHERN RIO GRANDE RIFT: INSIGHTS FROM MINERAL CHEMISTRY OF PERIDOTITE XENOLITHS FROM THE POTRILLO VOLCANIC FIELD, NEW MEXICO
22 Cenozoic Magmatic and Tectonic Processes of Colorado–New Mexico: Understanding Voluminous Volcanism during the Transition from Laramide Contraction to Rio Grande Rift Extension (Posters)Tuesday, 26 March 20198:30 AM - 5:45 PMBig Basin/Kaw Nation Rooms
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MINERAL CHEMISTRY AND GEOTHERMOBAROMETRY OF ANDESITES FROM THE LAZUFRE COMPLEX, CENTRAL ANDES, CHILE: INSIGHTS INTO THE PRE-ERUPTIVE MAGMA PLUMBING SYSTEM
3 Microanalyses, Macro Implications: Using Microscale Analyses to Decipher System-to-Regional Scale ProcessesMonday, 25 March 20198:00 AM - 12:00 PMKings Room
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PUMICE COMPOSITIONS AND MINERAL CHEMISTRY OF BIMODAL PUMICE ERUPTED FROM LASCAR VOLCANO, CENTRAL VOLCANIC ZONE, CHILE
3 Microanalyses, Macro Implications: Using Microscale Analyses to Decipher System-to-Regional Scale ProcessesMonday, 25 March 20198:00 AM - 12:00 PMKings Room
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PETROGENETIC EVOLUTION OF INTERMEDIATE MAGMAS FROM THE MOGOLLON-DATIL VOLCANIC FIELD DURING ARC-RIFT TRANSITION: INSIGHTS FROM WHOLE-ROCK GEOCHEMISTRY OF THE BEARWALLOW MOUNTAIN ANDESITE
2 Cenozoic Magmatic and Tectonic Processes of Colorado–New Mexico: Understanding Voluminous Volcanism during the Transition from Laramide Contraction to Rio Grande Rift ExtensionMonday, 25 March 20198:00 AM - 12:00 PMTuttle Room
2018
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CHEMICAL IMAGING OF DIAMONDS BY TIME OF FLIGHT SECONDARY IONIZATION MASS SPECTROMETRY
T282 Gemological Research in the Twenty-First Century—Characterization, Exploration, and Geological Significance of Diamonds and Other Gem MineralsWednesday, 7 November 20181:30 PM - 5:30 PMRoom 145
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THE PRE-ERUPTIVE PLUMBING SYSTEM OF INTERMEDIATE MAGMAS FROM THE MOGOLLON-DATIL VOLCANIC FIELD: INSIGHTS FROM PYROXENE AND PLAGIOCLASE MINERAL CHEMISTRY AND GEOTHERMOBAROMETRY
T89 Magmas Assemble! Petrologic, Geochemical, Chronologic, and Geophysical Insights into the Architecture and Timescales of Magmatic SystemsMonday, 5 November 20188:00 AM - 12:00 PMRoom 240-241
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TEXTURAL AND GEOCHEMICAL VARIATION OF THE OLIGOCENE KNEELING NUN TUFF, MOGOLLON-DATIL VOLCANIC FIELD, NEW MEXICO
T116 Different Personalities of Granites and Rhyolites: Silicic Magmas from the Lower Crust to the Surface (Posters)—A Session in Honor of Calvin Miller, Recipient of the MGPV Distinguished Geological Career AwardMonday, 5 November 20189:00 AM - 6:30 PMHalls J-K
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U-PB GEOCHRONOLOGY AND PETROLOGY OF OLIGOCENE AND MIOCENE RHYOLITE TUFFS FROM THE NORTHERN MOGOLLON-DATIL VOLCANIC FIELD
T96 Sigma Gamma Epsilon Undergraduate Research (Posters)Monday, 5 November 20189:00 AM - 6:30 PMHalls J-K
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THE PETROLOGY AND GEOCHEMISTRY OF A MIOCENE UNDIFFERENTIATED DACITE IN THE MOGOLLON-DATIL VOLCANIC FIELD, NEW MEXICO
T96 Sigma Gamma Epsilon Undergraduate Research (Posters)Monday, 5 November 20189:00 AM - 6:30 PMHalls J-K
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PETROLOGY AND GEOCHEMISTRY OF THE BEARWALLOW MOUNTAIN ANDESITE, MOGOLLON-DATIL VOLCANIC FIELD, NEW MEXICO
T41 Magmas Assemble! Petrologic, Geochemical, Chronologic, and Geophysical Insights into the Architecture and Timescales of Magmatic Systems (Posters)Sunday, 4 November 20189:00 AM - 5:30 PMHalls J-K
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PETROLOGY, MINERAL CHEMISTRY, AND GEOTHERMOBAROMETRY OF ANDESITES FROM THE LAZUFRE COMPLEX, CENTRAL ANDES, CHILE: INSIGHTS INTO THE PRE-ERUPTIVE MAGMA PLUMBING SYSTEM
T41 Magmas Assemble! Petrologic, Geochemical, Chronologic, and Geophysical Insights into the Architecture and Timescales of Magmatic Systems (Posters)Sunday, 4 November 20189:00 AM - 5:30 PMHalls J-K
2017
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PETROLOGY AND GEOCHEMISTRY OF RHYOLITE TUFFS OF THE BELL TOP FORMATION, DONA ANA COUNTY, NEW MEXICO
T153 Sigma Gamma Epsilon-Undergraduate Research (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
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INTERMEDIATE VOLCANIC ROCKS OF THE WESTERN MOGOLLON-DATIL VOLCANIC FIELD, SOUTHERN NEW MEXICO: A CHANGE IN MAGMATIC SOURCE AFTER IGNIMBRITE FLARE-UP
T153 Sigma Gamma Epsilon-Undergraduate Research (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
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DIAMOND INTRAGRANULAR δ13C VARIABILITY MEASURED BY TOF-SIMS
T172 Gemological Research in the 21st Century—Characterization, Exploration, and Geological Significance of Diamonds and other Gem Minerals (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
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WHAT’S THE DIFFERENCE? A PETROGRAPHIC AND GEOCHEMICAL COMPARISON OF THE BLOODGOOD CANYON TUFF AND THE TUFF OF TRIANGLE C RANCH
T153 Sigma Gamma Epsilon-Undergraduate Research (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
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THE PETROLOGY AND GEOCHEMISTRY OF THE KNEELING NUN TUFF, MOGOLLON-DATIL VOLCANIC FIELD, NEW MEXICO
T153 Sigma Gamma Epsilon-Undergraduate Research (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
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THE PRE-ERUPTIVE MAGMATIC CONDITIONS OF THE BLOODGOOD CANYON TUFF: INSIGHTS FROM ALKALI FELDSPAR AND QUARTZ CRYSTAL SIZE DISTRIBUTIONS AND MINERAL CHEMISTRY
T153 Sigma Gamma Epsilon-Undergraduate Research (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
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FIELD VOLCANOLOGY IN THE CENTRAL ANDES: A CAPSTONE VOLCANOLOGY AND IGNEOUS PETROLOGY FIELD COURSE
T76 Beyond the Road-Cut: Virtual, Local, and Nontraditional “Field” Teaching and Learning Experiences (Posters)Sunday, 22 October 20179:00 AM - 5:30 PMHalls 4EF
2016
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PETROLOGY AND GEOCHEMISTRY OF THE MINERAL CREEK AND LAST CHANCE ANDESITES, WESTERN MOGOLLON-DATIL VOLCANIC FIELD, SOUTHERN NEW MEXICO
256 Recent Advances in Igneous Petrology and Geochemistry (Posters)Tuesday, 27 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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GEOCHEMISTRY AND EVOLUTION OF THE BLOODGOOD CANYON TUFF, MOGOLLON-DATIL VOLCANIC FIELD, NEW MEXICO, USA: THE EVOLUTION OF CRYSTAL SIZES IN AN OPEN MAGMATIC SYSTEM
T152 Go Small or Go Home: Microbeam Techniques Applied to Igneous, Metamorphic, and Sedimentary Petrology of Earth and Planetary Materials (Posters)Monday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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THE COONEY TUFF: ASH FALL IN A CALK-ALKALINE SUBDUCTION RELATED VOLCANIC FIELD, SOUTHERN NEW MEXICO
T176 Field Geology to Inform Volcanic Processes (Posters): A Tribute to the Distinguished Career of Don SwansonMonday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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PETROLOGY AND GEOCHEMISTRY OF THE LAZUFRE VOLCANIC COMPLEX: EVIDENCE FOR DIVERSE PETROGENETIC PROCESSES AND SOURCES IN THE ANDEAN CENTRAL VOLCANIC ZONE
T176 Field Geology to Inform Volcanic Processes (Posters): A Tribute to the Distinguished Career of Don SwansonMonday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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OXYGEN ISOTOPE AND GEOCHEMICAL ANALYSIS OF VOLCANIC ROCKS FROM SOUTH-CENTRAL NEW MEXICO: INSIGHT ON CRUSTAL CONTAMINATION AND MAGMATIC EVOLUTION
T176 Field Geology to Inform Volcanic Processes (Posters): A Tribute to the Distinguished Career of Don SwansonMonday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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PETROLOGY AND GEOCHEMSITRY OF VOLCANIC ROCKS FROM THE WESTERN MOGOLLON DATIL VOLCANIC FIELD, NEW MEXICO: INSIGHTS IN TO THE EVOLUTION OF A LONG LIVED CRUSTAL MAGMA RESERVOIR
T56 Field Geology to Inform Volcanic Processes: A Tribute to the Distinguished Career of Don SwansonSunday, 25 September 20161:30 PM - 5:30 PMRoom 503
2015
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SURFACE SOURCE OF COROMANDEL DIAMONDS (MINAS GERAIS STATE, BRAZIL) AND THEIR POSSIBLE ORIGIN FROM THE SERRA NEGRA/SALITRE SUPERVOLCANO
T300 Gemological Research in the 21st Century: Exploration, Geology, and Characterization of Diamonds and other Gem Minerals (Posters)Wednesday, 4 November 20159:00 AM - 6:30 PMExhibit Hall
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STRUCTURE AND TWINNING IN MG-AND MN-RICH ZONED GARNET FROM THE TOCANTINS RHODOLITE GARNETS, TOCANTINS STATE, BRAZIL
T300 Gemological Research in the 21st Century: Exploration, Geology, and Characterization of Diamonds and other Gem Minerals (Posters)Wednesday, 4 November 20159:00 AM - 6:30 PMExhibit Hall
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THE EFFECTS OF MICRO-INCLUSIONS ON INTERNAL STRUCTURE OF ZONED GARNET: AN EXAMPLE FROM THE TOCANTINS RHODOLITE GARNETS, TOCANTINS STATE, BRAZIL
299 Mineralogy/Crystallography (Posters)Wednesday, 4 November 20159:00 AM - 6:30 PMExhibit Hall
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TRACE ELEMENT VARIATION IN PLAGIOCLASE PHENOCRYSTS FROM IGNIMBRITES FROM THE MOGOLLON-DATIL VOLCANIC FIELD, SOUTHERN NEW MEXICO, USA: INSIGHTS INTO THE PROCESSES AND TIMESCALES OF MAGMATISM
T227 A Matter of Perspective: Integrating Macro- and Micro-Scale Evidence in Investigations of Magmatic Origins and Histories (Posters)Tuesday, 3 November 20159:00 AM - 6:30 PMExhibit Hall
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EXAMINING ASH FALL SEQUENCES IN CALK-ALKALINE SUBDUCTION RELATED VOLCANISM, SOUTHERN NEW MEXICO
T227 A Matter of Perspective: Integrating Macro- and Micro-Scale Evidence in Investigations of Magmatic Origins and Histories (Posters)Tuesday, 3 November 20159:00 AM - 6:30 PMExhibit Hall
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CRUSTAL DIFFERENTIATION PROCESSES AT CERRO UTURUNCU, ANDEAN CENTRAL VOLCANIC ZONE, SW BOLIVIA: INSIGHTS FROM IN SITU SR ISOTOPIC ANALYSES OF PLAGIOCLASE PHENOCRYSTS
T99 A Matter of Perspective: Integrating Macro- and Micro-Scale Evidence in Investigations of Magmatic Origins and HistoriesMonday, 2 November 20158:00 AM - 12:00 PMRoom 341
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MODIFICATION OF THE CONTINENTAL CRUST BY SUBDUCTION ZONE MAGMATISM AND VICE-VERSA: ACROSS-STRIKE GEOCHEMICAL VARIATIONS OF SILICIC LAVAS FROM THE MOGOLLON-DATIL VOLCANIC FIELD, SW NEW MEXICO
131 Petrology, Igneous (Posters)Monday, 2 November 20159:00 AM - 6:30 PMExhibit Hall
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THE EFFECTS OF MICRO-INCLUSIONS ON INTERNAL STRUCTURE OF ZONED GARNET: AN EXAMPLE FROM THE TOCANTINS RHODOLITE GARNETS, TOCANTINS STATE, BRAZIL
10 Student Research I (Posters)Tuesday, 19 May 20158:00 AM - 12:00 PMGrand Terrace
2014
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SLAUGHTER IN THE ROCKS AND OTHER GEOLOGICAL ASPECTS OF THE BATTLE OF PEA RIDGE
17 Quaternary Geology and Geomorphology (Posters)Tuesday, 18 March 20141:00 PM - 5:00 PMWhite River Room
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USING TERRAIN TO WIN WARS: AN EXAMPLE FROM THE BATTLE OF PEA RIDGE, AMERICAN CIVIL WAR
11 Undergraduate Research (Posters)Monday, 17 March 20141:00 PM - 5:00 PMWhite River Room
2013
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MULTI-STAGE MIXING FOLLOWING ASSIMILATION-FRACTIONAL CRYSTALLIZATION AT CERRO UTURUNCU, ANDEAN CENTRAL VOLCANIC ZONE, SW BOLIVIA AS REVEALED FROM IN SITU LASER ABLATION ISOTOPIC ANALYSES OF PLAGIOCLASE
T115 Volcanology, Mineralogy, Geochemistry & Petrogenesis of Circum-Pacific Magmatism: A Tribute Session to Gerhard WörnerMonday, 28 October 20138:00 AM - 12:00 PMRoom 605
2003
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SUB-ICE VOLCANISM: HYDRAULICS, EDIFICE STRUCTURES AND IMPLICATIONS FOR MARS EXAMPLES
170 Preservation of Random Mega-Scale Events on Mars and Earth: Influence on Geologic HistoryTuesday, 4 November 20031:30 PM - 5:30 PM