T.A. Harms
Amherst College, Amherst, MA
Activity
2024
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METAMORPHISM OF KYANITE SCHISTS IN THE NORTHERN GRAVELLY RANGE OF SW MONTANA DURING THE PALEOPROTEROZOIC BIG SKY OROGENY
5 D1. General Geology (Posters)Sunday, 17 March 20249:00 AM - 1:00 PMArmory Ballroom
2023
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THE PALEOPROTEROZOIC TECTONIC HISTORY OF THE NORTHERN WYOMING PROVINCE CONSTRAINS ITS INTEGRATION INTO THE CRATONIC BASEMENT OF LAURENTIA
T135 Assembling a Craton: Recent Insights into Precambrian Assembly and Growth of Laurentia and Its Cratonic ComponentsMonday, 16 October 20231:30 PM - 5:30 PM329
2020
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USING CRYSTALLOGRAPHIC PREFERRED ORIENTATION IN MYLONITIC GARNET LEUCOGNEISS TO STUDY PALEOPROTEROZOIC TECTONICS IN THE RUBY RANGE, MONTANA
59 Undergraduate Research III (Posters)Sunday, 22 March 20208:00 AM - 12:00 PMGrand Ballroom A–D
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PALEOPROTEROZOIC GREEN-MICA QUARTZITE IN THE RUBY RANGE OF SOUTHWEST MONTANA
59 Undergraduate Research III (Posters)Sunday, 22 March 20208:00 AM - 12:00 PMGrand Ballroom A–D
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MINERALOGIC AND BULK CHEMICAL COMPOSITION OF PROTEROZOIC MYLONITIC GARNET LEUCOGNEISS IN THE RUBY RANGE, MONTANA
12 Undergraduate Research II (Posters)Friday, 20 March 20208:00 AM - 12:00 PMGrand Ballroom A–D
2019
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CONSTRAINING METAMORPIHC P/T CONDITIONS FROM PRECRAMBRIAN CORUNDUM-BEARING ROCKS OF THE RUBY RANGE IN SW MONTANA
40 D1. A Cross-Disciplinary Approach to Investigating Tectonics II - Integrating Field, Laboratory, and Experimental Techniques (Posters)Monday, 18 March 20191:30 PM - 5:30 PMCasco Bay Hall
2018
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DETERMINING PROTOLITH AND METAMORPHIC GRADE FOR BIOTITE-GARNET GNEISS IN THE RUBY RANGE, SW MT
57 D11. Igneous and Metamorphic Petrology (Posters)Tuesday, 20 March 20188:00 AM - 12:00 PMLake Champlain Exhibition Hall
2017
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GARNET LU-HF AND ZIRCON U-PB DATING CONSTRAINS EARLIEST PALEOPROTEROZOIC (2.43 GA) THERMAL EVENT IN THE RUBY RANGE, SW MONTANA
T181 Cratonic Assembly in the Precambrian: Forming the Core of Modern and Ancient Landmasses (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
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THE NATURE OF ARCHEAN TERRANE BOUNDARIES REVISITED: EVIDENCE FOR TWO PALEOPROTEROZOIC THERMOTECTONIC EVENTS RECORDING CRUSTAL ASSEMBLY, MELT PRODUCTION, AND MODIFICATION IN THE RUBY RANGE, SOUTHWESTERN MONTANA
T19 Origin and Evolution of the Continental Crust: A Celebration of the Career of Paul MuellerSunday, 22 October 20178:00 AM - 12:00 PMSkagit 2
2016
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PROTEROZOIC EVOLUTION OF THE WYOMING PROVINCE: A VIEW FROM THE NORTH
T204 Proterozoic Accretion of the North American Continent – United Plates of America Revisited ITuesday, 27 September 20168:00 AM - 12:00 PMMile High Ballroom 3B
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U-PB AND LU-HF GEOCHRONOLOGIC CONSTRAINTS ON THE PROTEROZOIC EVOLUTION OF THE RUBY RANGE, MONTANA
T230 Proterozoic Accretion of the North American Continent – United Plates of America Revisited IITuesday, 27 September 20161:30 PM - 5:30 PMMile High Ballroom 3B
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GARNET LU-HF AND ZIRCON U-PB DATING CONSTRAINS EARLIEST PALEOPROTEROZOIC (2.43 GA) THERMAL EVENT IN THE RUBY RANGE, SW MONTANA
11 Constraints on the Formation, Assembly, and Evolution of Precambrian Rocks in the Rockies (Posters)Wednesday, 18 May 20168:00 AM - 6:00 PMClearwater Room
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QUANTIFYING THE PENETRATIVE DEFORMATION OF A LIMESTONE PEBBLE CONGLOMERATE FROM THE KOOTENAY ARC, NE WASHINGTON
33 Structural Geology and Tectonics (Posters)Tuesday, 22 March 20168:00 AM - 12:00 PMConvention Hall
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PRECAMBRIAN METAMORPHISM IN THE WYOMING PROVINCE: A PETROLOGICAL AND GEOCHEMICAL STUDY OF AMPHIBOLITES IN THE HIGHLAND MOUNTAIN RANGE IN SOUTHWESTERN MONTANA
22 Metamorphic Petrology (Posters)Monday, 21 March 20161:30 PM - 5:30 PMConvention Hall
2015
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PETROGRAPHY AND MINERALOGY OF ULTRAMAFIC PODS IN THE RUBY RANGE WITH SPECIAL ATTENTION TO IDENTIFYING ACCESSORY MINERAL PHASES, INCLUDING ZIRCON
303 Petrology, Metamorphic (Posters)Wednesday, 4 November 20159:00 AM - 6:30 PMExhibit Hall
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MONAZITE OCCURRENCE IN GARNET BEARING SCHIST AND GNEISS FROM THE RUBY RANGE, SOUTHWEST MONTANA
38 Tectonics (Posters)Tuesday, 24 March 20158:00 AM - 12:00 PMPresidential Ballroom
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PETROLOGY AND GEOCHEMICAL ANALYSIS OF PELITIC GNEISSES, RUBY RANGE, SW MONTANA
38 Tectonics (Posters)Tuesday, 24 March 20158:00 AM - 12:00 PMPresidential Ballroom
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SYMPLECTIC KYANITE, GARNET, AND CORDIERITE IN ORTHOAMPHIBOLITES FROM THE RUBY RANGE, SOUTHWESTERN MONTANA
38 Tectonics (Posters)Tuesday, 24 March 20158:00 AM - 12:00 PMPresidential Ballroom
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PETROGRAPHY, GEOTHERMOBAROMETRY AND METAMORPHIC HISTORY OF METAPELITES FROM THE CENTRAL RUBY RANGE, SOUTHWEST MONTANA
38 Tectonics (Posters)Tuesday, 24 March 20158:00 AM - 12:00 PMPresidential Ballroom
2014
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GEOCHEMICAL AND PETROLOGIC ANALYSIS OF PALEOPROTEROZIC METAMORPHOSED MAFIC DIKES AND SILLS FROM THE HIGHLAND MOUNTAINS MONTANA
32 Using LiDAR Imagery to Map Features Generated by Quaternary Glacial, Periglacial, and Mass Movement Processes (Posters)Sunday, 23 March 20141:30 PM - 4:15 PMFreedom Hall A
2013
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LATE ARCHEAN TO PALEOPROTEROZOIC EVOLUTION OF THE MONTANA METASEDIMENTARY SUBPROVINCE AND ITS IMPLICATIONS FOR THE GROWTH AND AMALGAMATION OF THE WYOMING PROVINCE
T124 Proterozoic Meets Archean: Amalgamation of LaurentiaMonday, 28 October 20138:00 AM - 12:00 PMRoom 304
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LASER 40AR/39AR THERMOCHRONOLOGY OF SINGLE CRYSTALS FROM PALEOPROTEROZOIC TO ARCHEAN ROCKS OF THE NORTHERN WYOMING PROVINCE, BIG SKY OROGEN, AND GREAT FALLS TECTONIC ZONE: GILETTI’S LINE REVISITED
T84 Recent Advances in ThermochronologySunday, 27 October 20131:00 PM - 5:00 PMRoom 505
2012
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KINEMATICS AND TIMING OF PROTEROZOIC MYLONITIZATION IN THE HIGHLAND MOUNTAINS OF SOUTHWESTERN MONTANA
51 Tectonics (Posters)Tuesday, 20 March 20128:00 AM - 12:00 PMBallrooms A, B & C and Ballroom Pre-function Area
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GEOCHEMICAL ANALYSIS OF PRECAMBRIAN IGNEOUS AND METAMORPHIC ROCKS OF THE HIGHLAND MOUNTAINS, SW MONTANA
51 Tectonics (Posters)Tuesday, 20 March 20128:00 AM - 12:00 PMBallrooms A, B & C and Ballroom Pre-function Area
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NEW CONSTRAINTS ON COOLING AGES FOR PROTEROZOIC ACCRETED ARC AND METAMORPHIC CORE ZONE ROCKS OF THE BIG SKY OROGEN IN SOUTHWESTERN MONTANA
51 Tectonics (Posters)Tuesday, 20 March 20128:00 AM - 12:00 PMBallrooms A, B & C and Ballroom Pre-function Area
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EVALUATING THE TIMING, CONDITIONS, AND REGIONAL EXTENT OF PALEOPROTEROZOIC METAMORPHISM IN SOUTHWESTERN MONTANA
51 Tectonics (Posters)Tuesday, 20 March 20128:00 AM - 12:00 PMBallrooms A, B & C and Ballroom Pre-function Area
2010
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METAMORPHIC EVOLUTION AND P-T PATH OF CORDIERITE-BEARING BIOTITE-SILLIMANITE-GARNET GNEISSES DURING THE BIG SKY OROGENY, LITTLE BELT MOUNTAINS, MONTANA
52 It All Starts in the Field (Posters): In Honor of Wallace A. BothnerMonday, 15 March 20101:30 PM - 5:35 PMInternational ABCDF
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METAMORPHISM OF MYLONITIC SILLIMANITE-GARNET-BIOTITE-K-SPAR GNEISS IN THE HIGHLAND MOUNTAINS OF SOUTHWEST MONTANA
52 It All Starts in the Field (Posters): In Honor of Wallace A. BothnerMonday, 15 March 20101:30 PM - 5:35 PMInternational ABCDF
2009
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METAMORPHISM AND P-T PATHS OF K-FELDSPAR-GARNET-SILLIMANITE-BIOTITE BEARING ROCKS FROM THE HIGHLAND MOUNTAINS, SOUTHWESTERN MONTANA
11 The Boston Basin and Beyond: In Honor of Margaret D. Thompson (Posters)Sunday, 22 March 20098:00 AM - 12:00 PM
2008
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AN EVALUATION OF QUARTZ C-AXIS PATTERNS FROM A SHEATH FOLD IN METAMORPHOSED PRECAMBRIAN ROCKS, TOBACCO ROOT MOUNTAINS, MT, USA
39 Precambrian Geology (Posters)Saturday, 29 March 20088:00 AM - 12:00 PM
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Metamorphism and P-T Path of Garnet-Sillimanite-Biotite Migmatites, Highland Mountains, Montana
39 Precambrian Geology (Posters)Saturday, 29 March 20088:00 AM - 12:00 PM
2007
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A MOBILIST ARGUMENT FOR THE APPALACHIAN ORIGIN OF INBOARD CORDILLERAN TERRANES
21 Paleogeographic Reconstructions of Cordilleran Terranes II: In Honor of David L. JonesSaturday, 5 May 20071:30 PM - 6:00 PM
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PETROLOGICAL, GEOCHRONOLOGICAL, AND GEOCHEMICAL ANALYSES OF PRECAMBRIAN METASEDIMENTARY ROCKS IN THE CENTRAL GRAVELLY RANGE, SOUTHWEST MONTANA
39 Petrology and Mineralogy (Posters)Tuesday, 13 March 20071:00 PM - 4:45 PM
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TECTONIC INVESTIGATION OF PRECAMBRIAN ROCKS IN THE GRAVELLY RANGE, MONTANA
39 Petrology and Mineralogy (Posters)Tuesday, 13 March 20071:00 PM - 4:45 PM
2006
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THE KLINKIT BATHOLITH AND THE KLINKIT FAULT OF NORTHERN BRITISH COLUMBIA: MELT AND DISPLACEMENT
T107 Minerals, Melts, Fluids, and the Evolution of Mountain Belts II: A Tribute to Maria Luisa CrawfordMonday, 23 October 20061:30 PM - 5:30 PM
2004
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A MAP-SCALE SHEATH FOLD IN THE TOBACCO ROOT MOUNTAINS, MONTANA AND ITS ROLE IN THE EVOLUTION OF THE 1.78-1.73 GA BIG SKY OROGEN
T175 Whence the Mountains? New Developments in the Tectonic Evolution of Orogenic Belts: Celebrating the Dynamic Career of Raymond A. Price at the 50-Year Mark IIITuesday, 9 November 20041:30 PM - 5:30 PM
2003
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CHARACTER AND EVOLUTION OF THE 1.78-1.72 GA BIG SKY OROGENY IN THE TOBACCO ROOT MOUNTAINS, MONTANA
239 Precambrian GeologyWednesday, 5 November 20031:30 PM - 5:30 PM
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PROTEROZOIC METAMORPHISM IN THE TOBACCO ROOT MOUNTAINS, MONTANA: PTT PATH AND 207PB/206PB ION MICROPROBE AGES OF MONAZITE
239 Precambrian GeologyWednesday, 5 November 20031:30 PM - 5:30 PM
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PROTOLITH AND TECTONIC SETTING FOR PRECAMBRIAN METAMORPHIC ROCKS, TOBACCO ROOT MOUNTAINS, MONTANA: AN INTEGRATED VIEW
239 Precambrian GeologyWednesday, 5 November 20031:30 PM - 5:30 PM
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KOBUK FAULT ZONE OF THE SOUTHERN BROOKS RANGE, ALASKA PRESERVES PALEOCENE EXHUMATION OF AMPHIBOLITE GRADE ROCKS ALONG A DEXTRAL-SLIP FAULT SYSTEM
T182 Exhumation Along Major Continental Strike-Slip Fault Systems IITuesday, 4 November 20031:30 PM - 5:30 PM
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A MODEL FOR THE APPALACHIAN ORIGIN OF PALEOZOIC TERRANES IN THE NORTH AMERICAN CORDILLERA
45 Tectonics I: Cordilleran Terranes, Arc TectonicsSunday, 2 November 20031:00 PM - 3:45 PM
2002
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ANALYSIS OF THE RELATIONSHIP BETWEEN STRAIN AND METAMORPHIC EQUILIBRIUM AS PRESERVED IN ARCHEAN AMPHIBOLITES FROM THE TOBACCO ROOT MOUNTAINS, MONTANA
29 Undergraduate Research in the Geological Sciences II (Posters)Tuesday, 26 March 20021:00 PM - 5:00 PM
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QUARTZ C-AXIS STUDIES FROM A SHEATH FOLD IN METAMORPHOSED PRECAMBRIAN ROCKS, TOBACCO ROOT MOUNTAINS, MT
29 Undergraduate Research in the Geological Sciences II (Posters)Tuesday, 26 March 20021:00 PM - 5:00 PM
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FABRIC AND KINEMATIC INDICATORS IN THE CRETACEOUS KLINKIT BATHOLITH: IMPLICATIONS FOR THE ADJACENT KLINKIT FAULT IN NORTH-CENTRAL BRITISH COLUMBIA
29 Undergraduate Research in the Geological Sciences II (Posters)Tuesday, 26 March 20021:00 PM - 5:00 PM
2001
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QUARTZ C-AXIS ANALYSIS OF PRECAMBRIAN ROCKS IN THE TOBACCO ROOT MOUNTAINS OF MONTANA
7 Undergraduate Research I (Sponsored by Geology Division, Council on Undergraduate Research) (Posters)Monday, 12 March 20018:30 AM - 12:00 PM
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KINEMATIC INTERPRETATION OF PLANAR AND LINEAR FABRICS IN THE KLINKIT BATHOLITH, BRITISH COLUMBIA
7 Undergraduate Research I (Sponsored by Geology Division, Council on Undergraduate Research) (Posters)Monday, 12 March 20018:30 AM - 12:00 PM
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207PB/206PB IN SITU ION MICROPROBE DATING OF MONAZITE FROM PRECAMBRIAN METAMORPHIC SUITES, TOBACCO ROOT MOUNTAINS, SOUTHWESTERN MONTANA
7 Undergraduate Research I (Sponsored by Geology Division, Council on Undergraduate Research) (Posters)Monday, 12 March 20018:30 AM - 12:00 PM
Date Unknown
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PROTEROZOIC(?) LOW-GRADE METAMORPHIC ROCKS OF THE CENTRAL GRAVELLY RANGE OF SW MONTANA
15 Precambrian Geology, Petrology, and Mineralogy (Posters)
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ABSENCE OF LOWER PALEOZOIC STRATIGRAPHIC SECTION AS EVIDENCE FOR TERTIARY EXTENSION IN SOUTHWEST MONTANA
30 Structural Geology and Tectonics (Posters)
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NEW EVIDENCE FOR THE PROTEROZOIC BIG SKY OROGENY RECORDED IN BIOTITE-GARNET-SILLIMANITE GNEISSES FROM SHEAR ZONES IN THE HIGHLAND MOUNTAINS, MONTANA
8 Structural Geology and Tectonics (Posters)
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TEMPERATURE-DEPENDENCE OF QUARTZ AND FELDSPAR DEFORMATION MECHANISMS IN TWO CONSTRASTING SHEAR ZONES: THE TOBACCO ROOT MOUNTAINS, MONTANA, AND THE SCHLINIG FAULT, EASTERN ALPS
19 Undergraduate Research (Posters) II