Margaret O. Plank
U.S. Geological Survey Emeritus, Denver, CO
Activity
2024
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IN THE LAND OF UNCONFORMITIES: TIME AND SPACE RELATIONS OF COMPLEX 763-740 MA VOLCANOGENIC-GLACIOGENIC ROCKS IN THE GREATER MOUNT ROGERS TRISTATE AREA OF VA, NC, AND TN
1 Spanning an Orogen–From the Scandinavian Caledonides of Norway to the Southernmost Appalachians of Alabama I: In Honor of the Career of James F. TullMonday, 15 April 20248:00 AM - 12:00 PMTop of the Plaza
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SYNTHESIS OF THE MESOPROTEROZOIC BASEMENT OF THE SOUTHEASTERN ADIRONDACK HIGHLANDS, ESSEX COUNTY, NEW YORK
35 Deciphering a Cryptic Geologic Record: New Insights from Field and Lab Investigations of the Appalachians in the United States and CanadaTuesday, 19 March 20248:00 AM - 12:00 PMPemigewasset Room
2023
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PETROLOGY, U–PB AGE CONSTRAINTS, AND ORE GENESIS OF THE SHEEP CREEK SEDIMENT-HOSTED ZN-PB-AG-SN PROSPECT IN THE BONNIFIELD MINING DISTRICT, EAST-CENTRAL ALASKA
T95 Linking Critical Minerals and the Geologic Framework of North America: The USGS Earth Mapping Resources Initiative (Earth MRI) and Related Activities (Posters)Monday, 16 October 20238:00 AM - 5:30 PMHall B
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EVIDENCE FOR MULTIPLE AGES OF ANORTHOSITE EMPLACEMENT, MARCY MASSIF, ADIRONDACKS, NY
12 The Grenville Orogen in Eastern North AmericaFriday, 17 March 20231:30 PM - 5:30 PMRegency Ballroom A
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BEDROCK GEOLOGIC MAPPING IN THE ADIRONDACK HIGHLANDS, NEW YORK
12 The Grenville Orogen in Eastern North AmericaFriday, 17 March 20231:30 PM - 5:30 PMRegency Ballroom A
2022
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NEW BEDROCK GEOLOGIC MAPPING IN THE ADIRONDACK HIGHLANDS, NORTHERN NEW YORK
32 Tectono-Metamorphic Processes at Convergent Boundaries: Insights from the Grenville Orogen, Northeastern North America, and BeyondMonday, 21 March 20221:30 PM - 5:30 PMCommonwealth Salon 4
2021
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INTEGRATED BEDROCK GEOLOGIC MAPPING IN THE ADIRONDACK HIGHLANDS OF NEW YORK
3 Insights about the Tectonic Evolution of Eastern North America from Rocks, Seismic Data, Experiments, and ModelsSunday, 14 March 20218:00 AM - 12:00 PMMonson
2020
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HOW THE ALLEGHANIAN OROGENY REVEALS INSIGHTS ON THE ORIGIN OF THE EARLY MESOZOIC HARTFORD BASIN
52 Provenance of the Eastern North American Margin: From Triassic Rifting to Modern SedimentationSunday, 22 March 20208:00 AM - 12:00 PMLake Fairfax
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EVIDENCE FOR THE METAMORPHIC ORIGIN OF 1.05-1.0 GA ZIRCON RIMS FROM THE LYON MOUNTAIN GRANITE GNEISS, ADIRONDACK HIGHLANDS, NEW YORK
28 The Grenville Orogen in Eastern North AmericaSaturday, 21 March 20208:00 AM - 12:00 PMRegency Ballroom B
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INTEGRATED BEDROCK GEOLOGIC MAPPING IN THE ADIRONDACK HIGHLANDS OF NEW YORK
28 The Grenville Orogen in Eastern North AmericaSaturday, 21 March 20208:00 AM - 12:00 PMRegency Ballroom B
2019
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ORIGIN, DISTRIBUTION, AND SIGNIFICANCE OF MESOPROTEROZOIC CRUST IN THE SOUTHERN APPALACHIANS: RODINIA REVISTED
32 Gondwana vs. Laurentia: Terrane Accretion and Crustal Growth in the Southeastern United StatesFriday, 29 March 20198:15 AM - 12:00 PMColonial Ballroom
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AGE AND TECTONIC SETTING OF THE QUINEBAUG-MARLBORO BELT, SOUTHEASTERN NEW ENGLAND
1 Geology, Structure, Geochronology, and Tectonics in Southern New England I: An Eclectic Session in Honor of Robert P. WintschSunday, 17 March 20198:00 AM - 12:00 PMNew Hampshire Room
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DETRITAL ZIRCONS: INTERPRETING AGES THAT ARE MISSING
12 Geology, Structure, Geochronology, and Tectonics in Southern New England II: An Eclectic Session in Honor of Robert P. WintschSunday, 17 March 20191:30 PM - 5:30 PMNew Hampshire Room
2018
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PRELIMINARY GEOLOGIC MAP OF THE MOUNT ROGERS AREA, VA–NC–TN
28 Longstanding Problems and New Ideas About the Structure and Tectonic Evolution of the Southern Appalachians and Other Mountain Belts: In Honor of the Career of Robert D. Hatcher Jr. (Posters)Friday, 13 April 20188:00 AM - 12:00 PMRoom 301 DE/Henley Concourse
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SHRIMP U-PB AGES OF ZIRCON AND MONAZITE, AND GARNET LU-HF AGES IN ANORTHOSITE OF THE MARCY MASSIF, ADIRONDACK HIGHLANDS, NY: RECOGNIZING INHERITED, IGNEOUS, AND METAMORPHIC COMPONENTS
40 The Adirondack Mountains and the Grenville Orogenic Cycle: New Results and Syntheses Regarding the Timing and Nature of Deformation, Metamorphism, Intrusion, and Formation of Ore Deposits II: A Session Honoring the Work of Bruce SelleckMonday, 19 March 20181:30 PM - 3:30 PMEmerald Ballroom II
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DISTRIBUTION, GEOLOGIC SETTING, AND RARE-EARTH ELEMENT (REE) POTENTIAL OF HISTORIC IRON DEPOSITS IN SOUTHERN ESSEX COUNTY, NEW YORK
40 The Adirondack Mountains and the Grenville Orogenic Cycle: New Results and Syntheses Regarding the Timing and Nature of Deformation, Metamorphism, Intrusion, and Formation of Ore Deposits II: A Session Honoring the Work of Bruce SelleckMonday, 19 March 20181:30 PM - 3:30 PMEmerald Ballroom II
2017
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DETRITAL ZIRCON GEOCHRONOLOGY AND PROVENANCES OF QUARTZOSE METASEDIMENTARY ROCKS FROM PARAUTOCHTHONOUS NORTH AMERICA, EAST-CENTRAL ALASKA
T344 New Perspectives on Cordilleran Tectonics, Paleogeography, and MetallogenyWednesday, 25 October 20171:30 PM - 5:30 PMTahoma 5
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CONSTRAINTS ON THE TIMING AND DURATION OF THE GRENVILLE OROGENY
10 Deciphering Metamorphic Histories in Multiply-Deformed Terranes in the Piedmont and Blue RidgeThursday, 30 March 20171:00 PM - 5:00 PMPotomac E
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TECTONIC EVOLUTION OF THE CONNECTICUT VALLEY REGION IN SOUTH-CENTRAL VERMONT AND WEST-CENTRAL NEW HAMPSHIRE
43 NETectonics: New Advances in Structural Geology and Tectonics in the AppalachiansMonday, 20 March 20171:30 PM - 5:30 PMLawrence Welk Room, Mezzanine Level
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NEW EVIDENCE FOR LATE TO POST-SHAWINIGAN INTRUSION OF THE HAWKEYE GRANITE GNEISS AND LYON MOUNTAIN GRANITE GNEISS, ADIRONDACK HIGHLANDS, NY
18 Precambrian Assembly of a Continent from the Northeast to the Mid-Continent to the Southwest: Modern Approaches to Study Ancient CrustSunday, 19 March 20171:30 PM - 5:30 PMLawrence Welk Room, Mezzanine Level
2016
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AGE AND HF ISOTOPIC PROVINCIALITY OF GRENVILLE CRUST IN LAURENTIA: IMPLICATIONS FOR ZIRCON-BASED PROVENANCE STUDIES
T200 Detrital Zircons on the North American Continental Interior II, and Sediment DispersalTuesday, 27 September 20168:00 AM - 12:00 PMRoom 403
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GEOPHYSICAL, GEOCHEMICAL, AND GEOLOGICAL APPROACHES TO EVALUATING RARE EARTH RESOURCES IN THE EASTERN ADIRONDACKS, UPSTATE NEW YORK
T148 Rare Earth and Critical Elements in Ore Deposits (Posters)Monday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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SHRIMP U-PB SYSTEMATICS OF ZIRCON FROM ANORTHOSITE, NELSONITE, AND ILMENITE-MAGNETITE ORE AT THE TAHAWUS MINE, ADIRONDACK MOUNTAINS, NY: EVIDENCE FOR A YOUNGER EPISODE OF EMPLACEMENT
T35 Go Small or Go Home: Microbeam Techniques Applied to Igneous, Metamorphic, and Sedimentary Petrology of Earth and Planetary MaterialsSunday, 25 September 20161:30 PM - 5:30 PMRoom 404
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NEW GEOCHRONOLOGIC CONSTRAINTS ON THE FORMATION AND HYDROTHERMAL ENRICHMENT OF THE BOKAN MOUNTAIN PERALKALINE IGNEOUS COMPLEX AND ASSOCIATED HREE DEPOSITS, SOUTHEASTERN ALASKA, USA
T3 Rare Earth and Critical Elements in Ore DepositsSunday, 25 September 20168:00 AM - 12:00 PMRoom 301
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AGES AND ORIGINS OF LOW-TI MAGNETITE DEPOSITS OF THE EASTERN ADIRONDACKS: SHRIMP U-PB AND REE EVIDENCE FROM COMPLEXLY ZONED ZIRCON
31 The Grenville-Age Low Ti-Fe Oxide Deposits from New York State: Igneous or Hydrothermal?Tuesday, 22 March 20168:00 AM - 12:00 PMMeeting Room 3
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NEW U-PB ZIRCON AGES AND FIELD STUDIES SUPPORT SHAWINIGAN DEFORMATION IN THE EASTERN ADIRONDACKS
14 Timing and Nature of Deformation in the Adirondack Mountains IIMonday, 21 March 20161:30 PM - 5:30 PMMeeting Room 6
2015
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A NEW INTERPRETATION FOR THE AGES OF ADIRONDACK PLUTONISM: IMPLICATIONS FOR THE NATURE AND TIMING OF MESOPROTEROZOIC DEFORMATION AND METAMORPHISM
T287 Integrating Perspectives on the Formation, Evolution, and Destruction of Continental Crust: From 0 to 4600 MaWednesday, 4 November 20158:00 AM - 12:00 PMRoom 308
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SPATIAL AND TEMPORAL COMPLEXITIES OF THE EASTERN LAURENTIAN MARGIN: NEW INSIGHT FROM OLD ROCKS OF THE APPALACHIAN BLUE RIDGE AND WESTERN PIEDMONT
T341 Deconstructing Rodinia: Neoproterozoic-Cambrian Geologic Evolution of Laurentia’s MarginsWednesday, 4 November 20151:30 PM - 5:30 PMRoom 314
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SLOW COOLING: THE TIMING AND DURATION OF METAMORPHISM IN THE BLUE RIDGE PROVINCE, VIRGINIA AND NORTH CAROLINA
T174 Bridging Two Continents: Supercontinents In Earth’s History: New Perspectives from Precambrian Geology of Asia and North AmericaMonday, 2 November 20153:00 PM - 5:30 PMRoom 347/348
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PRELIMINARY GEOLOGIC MAP OF THE MOUNT ROGERS AREA, VA–NC–TN: FIELD RELATIONSHIPS OF NEOPROTEROZOIC VOLCANISM AND GLACIATION IN THE BLUE RIDGE
T38 Geologic Maps and Their Derivatives (Posters)Sunday, 1 November 20159:00 AM - 5:30 PMExhibit Hall
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NEW SHRIMP U-PB ZIRCON AGES FOR FELSIC AMMONOOSUC VOLCANICS, NORTHERN NH-VT
1 Contributions to New England Stratigraphy & Structure I: In Honor of Robert Moench and Douglas RankinMonday, 23 March 20158:00 AM - 12:00 PMGrand Ballroom South
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UNRAVELLING THE PROLONGED HISTORY OF THE GANDERIAN MARGIN OF SOUTHEASTERN NEW ENGLAND
1 Contributions to New England Stratigraphy & Structure I: In Honor of Robert Moench and Douglas RankinMonday, 23 March 20158:00 AM - 12:00 PMGrand Ballroom South
2014
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SHRIMP U-PB GEOCHRONOLOGY OF PRE-ACADIAN SILURIAN BASINS OF CENTRAL AND EAST-CENTRAL MAINE AND THE POCOMOONSHINE PLUTON: DIVERSE SOURCES, RAPID SEDIMENTATION, TECTONISM, AND INTRUSION
67 Implementing Recent Innovations in Thermobarometry to Constrain Igneous and Metamorphic Evolution (Posters)Tuesday, 25 March 20148:00 AM - 12:00 PMFreedom Hall A
2013
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CONTRASTING LU-HF AND SM-ND AGES IN GARNETIFEROUS GNEISSES OF THE BLUE RIDGE PROVINCE, VIRGINIA: IMPLICATIONS FOR THE TIMING AND DURATION OF THE GRENVILLIAN OROGENY IN THE CENTRAL APPALACHIANS
T322 Modern Techniques, Models, and Interpretations of Ancient Orogens: 125 Years of Progress in Understanding the Grenville and Appalachian Orogens of Eastern North AmericaWednesday, 30 October 20138:00 AM - 12:00 PMRoom 505
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U-PB AND RE-OS GEOCHRONOLOGY OF REE-RICH BRECCIA PIPES FROM THE MESOPROTEROZOIC PEA RIDGE FE-REE-AU DEPOSIT, ST. FRANCOIS MOUNTAINS, MISSOURI
T207 Evolution of REE-Enriched Carbonatite-Alkalic Rock Systems: In Honor of Daniel R. ShaweTuesday, 29 October 20138:00 AM - 12:00 PMRoom 304
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MESOZOIC FRAMEWORK FOR MAGMATISM, METALLOGENY, AND FAULTING IN THE WESTERN FORTYMILE MINING DISTRICT, EAST CENTRAL ALASKA—SHRIMP U-PB ZIRCON GEOCHRONOLOGY, WHOLE-ROCK GEOCHEMISTRY, AND LEAD ISOTOPES
T23 Geological and Geophysical Constraints on the Tectonic Evolution and Resource Potential of Alaska and the Northern North American CordilleraSunday, 27 October 20138:00 AM - 12:00 PMRoom 505
2012
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MESOPROTEROZOIC TO LATE PALEOZOIC GEOLOGY ALONG THE BLUE RIDGE PARKWAY FROM JAMES RIVER TO BEARWALLOW GAP, CENTRAL VIRGINIA
T263 Geology in the National Parks: Research, Mapping, and Resource ManagementWednesday, 7 November 20121:30 PM - 5:30 PM209AB
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ZIGZAG GEOMETRY OF NEOPROTEROZOIC-EARLY PALEOZOIC CORDILLERAN RIFT MARGIN: IMPLICATIONS FOR MINERAL DEPOSITS, CANADA TO NEVADA
114 Supercontinent Cycles through Earth HistoryMonday, 5 November 20121:30 PM - 5:30 PMBallroom B
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DISTRIBUTION AND TECTONIC SIGNIFICANCE OF PALEOZOIC FAULTS AND HIGH-STRAIN ZONES OF THE BLUE RIDGE, SOUTHERN VIRGINIA AND NORTHWESTERN NORTH CAROLINA
T133 Deformation Processes in Lithospheric High-Strain Zones IIMonday, 5 November 20121:30 PM - 5:30 PM208A
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LATE MESOPROTEROZOIC (CA. 1.0 GA) DEPOSITION OF PROTOLITHS OF THE CARVERS GAP AND CLOUDLAND GNEISSES, MARS HILL TERRANE, NC-TN: NEW SHRIMP U-PB AGES OF DETRITAL ZIRCON AND MONAZITE
T62 Heredity of Appalachian CrustSunday, 4 November 20121:30 PM - 5:30 PM207D
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CONSTRAINING THE ORIGIN AND EVOLUTION OF GRENVILLE-AGED BASEMENT ROCKS IN THE BLUE RIDGE PROVINCE
T62 Heredity of Appalachian CrustSunday, 4 November 20121:30 PM - 5:30 PM207D
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WENTWORTH DOME: NEWLY CONFIRMED GNEISS DOME OF THE BRONSON HILL ANTICLINORIUM, WEST-CENTRAL NEW HAMPSHIRE
34 Future Directions in Appalachian Tectonics: Building on Recent Lithotectonic Syntheses IIMonday, 19 March 20121:30 PM - 5:30 PMCapital Rooms 2 & 3
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U-PB ZIRCON AND TITANITE AGES OF LATE-TO POST-TECTONIC INTRUSIONS OF THE CORTLANDT- BEEMERVILLE MAGMATIC BELT, CN, NY, AND NJ: RELATION TO IAPETAN CLOSURE IN THE TACONIAN OROGENY
24 Future Directions in Appalachian Tectonics: Building on Recent Lithotectonic Syntheses IMonday, 19 March 201210:15 AM - 12:20 PMCapital Rooms 2 & 3
2011
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THE GREAT PALEOZOIC UNCONFORMITY: PROVENANCE OF NEOPROTEROZOIC-CAMBRIAN ROCKS OF THE APPALACHIANS USING DETRITAL ZIRCONS
T77 Provenance Analysis in Modern and Ancient Sedimentary SystemsMonday, 10 October 20118:00 AM - 12:00 PMRoom 211CD
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NEW GEOLOGIC MAPPING AND RESEARCH IN THE GEORGE WASHINGTON, JEFFERSON, CHEROKEE AND PISGAH NATIONAL FORESTS, APPALACHIAN BLUE RIDGE, VA-NC-TN
49 Tectonics: Recent Advances in TectonicsSunday, 9 October 20111:30 PM - 5:30 PMRoom 200A-C
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ORIGIN OF THE QUINEBAUG-MARLBORO BELT IN SOUTHEASTERN NEW ENGLAND
68 Devonian Orogenesis in the Appalachian-Caledonian Mountain Belt—Where, When, and What Caused It?Tuesday, 22 March 20111:30 PM - 5:35 PMFrick
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AN EMSIAN AGE FOR THE GOSHEN FORMATION IN THE CONNECTICUT VALLEY- GASPE TROUGH IN MASSACHUSETTS
68 Devonian Orogenesis in the Appalachian-Caledonian Mountain Belt—Where, When, and What Caused It?Tuesday, 22 March 20111:30 PM - 5:35 PMFrick
2010
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U-PB SHRIMP ZIRCON AGES AND ND SIGNATURE OF VARISCAN BASEMENT, EASTERN PYRENEES (FRANCE) AND CATALAN COASTAL RANGES (SPAIN): RIFT-RELATED GRANITOIDS ABOVE CRYPTIC CADOMIAN BASEMENT
T98 Controls and Consequences of Continental Rifting: From Heat Flow, Stress, and Strain to Magmatism, Landscape-Basin Evolution, and Development of Natural ResourcesMonday, 1 November 20108:00 AM - 12:00 PMLobby F
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U-PB, HF, AND AR/AR EVIDENCE FOR THE PROVENANCES OF JURASSIC NAVAJO SANDSTONE: ADDITIONAL SUPPORT FOR TRANSCONTINENTAL TRANSPORT
T14 Innovative Techniques and Applications for Detrital Thermo- and Geochronologic DataSunday, 31 October 20108:00 AM - 12:00 PMRoom 207
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SHRIMP U-PB AGES OF DETRITAL ZIRCONS FROM THE CARVERS GAP GRANULITE GNEISS: NEW EVIDENCE FOR A MISSING RECORD OF SEDIMENTATION AND METAMORPHISM IN THE APPALACHIAN BLUE RIDGE
T14 Innovative Techniques and Applications for Detrital Thermo- and Geochronologic DataSunday, 31 October 20108:00 AM - 12:00 PMRoom 207
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DEXTRAL TRANSPRESSION AND OBLIQUE CRUSTAL EXTRUSION IN THE ALLEGHANIAN OF EASTERN NEW ENGLAND
75 Laurentian-Gondwanan Interactions in the Paleozoic IITuesday, 16 March 20101:30 PM - 5:35 PMLiberty B
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U-PB GEOCHRONOLOGY STUDIES IN VERMONT
3 The New Bedrock Geologic Map of Vermont: New Answers, New Problems, and New Uses of Bedrock Geologic DataSunday, 14 March 20107:50 AM - 12:05 PMLiberty A
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EVIDENCE FOR LATE NEOPROTEROZOIC DEPOSITION OF THE OCOEE SUPERGROUP: SHRIMP U-PB AND TRACE ELEMENT ANALYSIS OF DIAGENETIC XENOTIME AND MONAZITE
5 The Iapetan Rifted Margin and Rift History of Eastern Laurentia ISunday, 14 March 20108:00 AM - 12:05 PMLiberty B
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GEOLOGIC MAP AND GEOCHRONOLOGY OF THE SHENANDOAH NATIONAL PARK REGION, VIRGINIA
24 Geologic Maps, Geophysical Maps, and Derivatives from Geologic and Geophysical Maps (Posters)Sunday, 14 March 20101:30 PM - 4:15 PMInternational ABCDF
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THE CONNECTICUT VALLEY - GASPE TROUGH IN VERMONT
3 The New Bedrock Geologic Map of Vermont: New Answers, New Problems, and New Uses of Bedrock Geologic DataSunday, 14 March 20107:50 AM - 12:05 PMLiberty A
2009
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SHRIMP U-PB DATING OF RECURRENT CRYOGENIAN AND LATE CAMBRIAN-EARLY ORDOVICIAN ALKALIC MAGMATISM IN CENTRAL IDAHO: IMPLICATIONS FOR RODINIAN RIFT TECTONICS
T232 New Insights Into Development of the Upper Neoproterozoic—Lower Paleozoic Western Laurentian Passive MarginWednesday, 21 October 20098:00 AM - 12:00 PME145
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MID-CARBONIFEROUS CONGLOMERATES IN SOUTHWESTERN EUROPE RECORD EARLY VARISCAN INTRACONTINENTAL CONVERGENCE: EVIDENCE THAT CHANNELS WERE EXHUMED BEFORE THERMAL WEAKENING OF THE LITHOSPHERE
T230 Evaluating Channel Flow in OrogensWednesday, 21 October 20098:00 AM - 12:00 PMB110/111/112
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IMPLICATIONS OF NEW SHRIMP U-PB ZIRCON CRYSTALLIZATION AGES FOR THE ORIGIN OF CARBONATE REPLACEMENT AND SKARN MINERALIZATION IN THE WESTERN FORTYMILE MINING DISTRICT, EAST-CENTRAL ALASKA
T158 Magmas and Volatiles: Linking Granites, Volcanoes, Geothermal Systems, and Mineral Deposits ITuesday, 20 October 20098:00 AM - 12:00 PME143/144
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GEOLOGIC MAP AND GEOCHRONOLOGY OF THE GREAT SMOKY MOUNTAINS NATIONAL PARK REGION, TN/NC
T101 Geologic Maps, Digital Geologic Maps, Geophysical Maps, and Derivatives from Geologic Maps (Posters)Monday, 19 October 20099:00 AM - 6:00 PMHall A
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TECTONIC HISTORY OF THE AVALON AND NASHOBA TERRANES ALONG THE WESTERN FLANK OF THE MILFORD ANTIFORM, MASSACHUSETTS
47 Provenance and Orogenic History of Ganderia: Key Element in the Mid-Paleozoic Accretionary History of the Appalachian OrogenTuesday, 24 March 20097:55 AM - 12:00 PM
2008
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New Isotopic Evidence from Zircons and K-Feldspars for the Sources of Upper Mississippi River Valley Loess during the Last Glacial Period
T336 Loess and Loess SoilsThursday, 9 October 20088:00 AM - 12:00 PM
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New SHRIMP Ages for Grenville Rocks of the Northern Blue Ridge, Virginia and Maryland: Redefinition of Mesoproterozoic Magmatic and Metamorphic Events
T212 Recent Advances in the Understanding of Adirondack and Southern Grenville Province Tectonics II: In Honor of James McLellandMonday, 6 October 20081:30 PM - 5:30 PM
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Timing of Mesoproterozoic Magmatism and Metamorphism in the Vicinity of Mount Rogers, Southwestern Virginia and Northwestern North Carolina: Implications for the Nature of Grenville-Age Orogenesis in the Southern Appalachians
T212 Recent Advances in the Understanding of Adirondack and Southern Grenville Province Tectonics II: In Honor of James McLellandMonday, 6 October 20081:30 PM - 5:30 PM
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SHRIMP U-PB AGES OF DETRITAL ZIRCONS FROM PARAGNEISS IN THE VIRGINIA BLUE RIDGE PROVIDE EVIDENCE FOR LATE MESOPROTEROZOIC-EARLY NEOPROTEROZOIC SEDIMENTATION
13 Isotopic and Chemical Geochronology of Metamorphic Terranes in the Southern Appalachian Blue Ridge and Piedmont Environs: Implications for Tectonic Mapping and ModelingThursday, 10 April 20081:30 PM - 5:35 PM
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GEOLOGIC MAP AND GEOCHRONOLOGY OF THE FREDERICK 30' X 60' QUADRANGLE, MARYLAND, VIRGINIA, AND WEST VIRGINIA
9 Geologic Maps, Digital Geologic Maps, and Derivatives from Geologic Maps (Posters)Thursday, 10 April 20088:00 AM - 5:30 PM
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PRESSURE-TEMPERATURE-TIME CONDITIONS, ND AND PB ISOTOPIC COMPOSITIONS AND DETRIAL ZIRCON GEOCHRONOLOGY OF THE MASSABESIC GNEISS COMPLEX, NEW HAMPSHIRE
10 Evidence for Provenance of Peri-Gondwanan TerranesThursday, 27 March 20081:00 PM - 5:25 PM
2007
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NEOPROTEROZOIC TO CAMBRIAN RIFT ARCHITECTURE OF EASTERN LAURENTIA: A PROLONGED RECORD OF EXTENSION BEFORE AND AFTER DEVELOPMENT OF THE IAPETUS OCEAN
T230 Evolution of Appalachian-Ouachita Salients and Recesses from Reentrants [Embayments] and Promontories in the Continental Margin II: Thirtieth Anniversary Celebration of Advances Derived from Bill Thomas’ 1977 American Journal of Science PaperWednesday, 31 October 20072:00 PM - 5:30 PM
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INITIAL STUDIES OF BRECCIAS, BLOCKS, AND CRYSTALLINE ROCKS IN THE ICDP-USGS EYREVILLE-B CORE, CHESAPEAKE BAY IMPACT STRUCTURE, 1,095-1,766 M DEPTH
T167 The Chesapeake Bay Impact Structure: Results from the 2005–2006 ICDP-USGS Deep Drilling Project ITuesday, 30 October 20071:30 PM - 5:30 PM
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AGE AND GEOCHEMISTRY OF MULTIPLE GENERATIONS OF XENOTIME OVERGROWTHS FROM THE BELT SUPERGROUP: IMPLICATIONS FOR THE ORIGIN OF THE SPAR LAKE RED BED STRATABOUND CU-AG DEPOSIT
T100 Metallogeny and Isotope Geochemistry—New Approaches, New Perceptions, New ParadigmsMonday, 29 October 20071:30 PM - 5:30 PM
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SHRIMP U-PB CONSTRAINTS ON AGE AND PROVENANCE OF THE RIGGINS GROUP AND ASSOCIATED METAMORPHIC ROCKS WEST OF THE SALMON RIVER SUTURE, WEST-CENTRAL IDAHO: TECTONIC IMPLICATIONS
T106 The Blue Mountains Region of Oregon, Idaho and Washington: Recent Advances in the Mesozoic and Cenozoic History of an Enigmatic Accretionary Province IIMonday, 29 October 20071:30 PM - 3:30 PM
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EPISODIC LANDSCAPE INSTABILITY RECORDED IN LATE QUATERNARY LOESS-PALEOSOL SEQUENCES
T39 Episodic Landscape ChangeSunday, 28 October 20071:30 PM - 5:30 PM
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THE BROOKS RANGE FORELAND BASIN—WHERE IS THE PROVENANCE FOR BROOKIAN SEDIMENTATION?
28 Origin and Accretionary Processes of Cordilleran Terranes: New Methods, Models and Challenges ISunday, 6 May 20078:00 AM - 12:00 PM
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ORIGIN AND PALEOCLIMATIC SIGNIFICANCE OF LATE QUATERNARY LOESS IN NEBRASKA
14 Loess and PaleoenvironmentsThursday, 12 April 20078:40 AM - 12:00 PM
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TIME VERSUS TECTONIC SIGNIFICANCE: THE DISCONFORMITY AT THE BASE OF THE CHILHOWEE GROUP AND THE NEOPROTEROZOIC-CAMBRIAN BOUNDARY
4 "Great" Unconformities in the Appalachians: Their Temporal and Tectonic SignificanceThursday, 29 March 20078:00 AM - 12:00 PM
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AGE AND ORIGIN OF THE KILLINGWORTH DOME, SOUTH-CENTRAL CONNECTICUT: IMPLICATIONS FOR THE LATE PALEOZOIC TECTONIC EVOLUTION OF SOUTHERN NEW ENGLAND
33 Tectonic Setting of the Magmatic, Sedimentary and Metamorphic Record of the Alleghanian Orogeny in the Appalachian MountainsTuesday, 13 March 20071:00 PM - 2:45 PM
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SHRIMP U-PB GEOCHRONOLOGY OF ZIRCON AND MONAZITE FROM CA. 1.3 GA ARC-RELATED ROCKS, NEW JERSEY HIGHLANDS
3 From Rodinia to Pangea—The Lithotectonic Record of Plate Convergence in Eastern North America IMonday, 12 March 20078:15 AM - 12:00 PM
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1.3 GA CONTINENTAL-MARGIN MAGMATIC ARC AND BACK ARC IN THE NEW JERSEY HIGHLANDS AND IMPLICATIONS FOR THE ORIGIN OF ZINC + IRON DEPOSITS
3 From Rodinia to Pangea—The Lithotectonic Record of Plate Convergence in Eastern North America IMonday, 12 March 20078:15 AM - 12:00 PM
2006
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SHRIMP U-PB GEOCHRONOLOGY OF HYDROTHERMAL MONAZITE IN CO-CU-AU ORES OF THE BLACKBIRD DISTRICT, IDAHO
149 Economic GeologyTuesday, 24 October 20061:30 PM - 5:30 PM
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SHRIMP U-PB AGES OF DETRITAL AND METAMORPHIC ZIRCON FROM HIGH-GRADE METASEDIMENTARY ROCKS: REVISING LITHOSTRATIGRAPHIC CORRELATIONS AND TECTONIC MODELS IN SOUTHERN NEW ENGLAND
T169 Using Detrital Zircon Geochronology to Answer Geologic Questions We Formerly Could Not AskTuesday, 24 October 20061:30 PM - 5:30 PM
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IS THE AVONDALE MASSIF PALEOZOIC? NEW INSIGHTS FROM SHRIMP ZIRCON AND U-TH-TOTAL PB MONAZITE AGES
T80 Minerals, Melts, Fluids, and the Evolution of Mountain Belts I: A Tribute to Maria Luisa CrawfordMonday, 23 October 20068:00 AM - 12:00 PM
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CHARACTERIZATION OF YUKON-TANANA TERRANE, KANTISHNA HILLS, WEST-CENTRAL ALASKA
3 GSA: New Insights into the Origin and Evolution of the Northern Cordilleran Pericratonic Terranes IMonday, 8 May 20067:55 AM - 11:20 AM
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GEOCHRONOLOGIC CONSTRAINTS ON THE TIMING OF DEPOSITION AND METAMORPHISM OF THE OCOEE SUPERGROUP: SHRIMP U-PB DATING OF XENOTIME AND MONAZITE OVERGROWTHS ON DETRITAL MINERALS
27 Recent Advances in Western Blue Ridge GeologyFriday, 24 March 20068:00 AM - 12:00 PM
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THE POLYGENETIC GREENBRIER FAULT, GREAT SMOKY MOUNTAINS, TN/NC
27 Recent Advances in Western Blue Ridge GeologyFriday, 24 March 20068:00 AM - 12:00 PM
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ZIRCON SHRIMP U-PB GEOCHRONOLOGY OF ORTHOGNEISSES FROM THE WATERBURY DOME, WEST-CENTRAL CONNECTICUT: EVIDENCE FOR LATE ORDOVICIAN/EARLY SILURIAN MIGMATIZATION IN RESPONSE TO TACONIC COLLISION
5 Time Slices Across the Appalachians: Tectonic and Depositional Settings of Cambro-Ordovician Rocks in the Appalachian Orogen IMonday, 20 March 20068:00 AM - 12:00 PM
2005
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EVOLUTION OF THE DEXTRAL TRANSPRESSIVE SALMON RIVER SUTURE, IDAHO: ISOTOPIC EVIDENCE FOR LATE-STAGE CONTINENTAL DELAMINATION IN THE SYRINGA EMBAYMENT
T252 Accretionary Orogens in Space and Time IIWednesday, 19 October 20051:30 PM - 5:30 PM
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GEOCHRONOLOGIC EVIDENCE OF MULTIPLE OVERLAPPING, FRACTURE-CONTROLLED MAGMATIC AND HYDROTHERMAL PULSES IN THE BUTTE DISTRICT: GENETIC IMPLICATIONS FOR Ag AND Cu VEINS AND PORPHYRY Mo
T138 Sources of Porphyry Copper Deposits: Magmas, Metals, and Fluids IITuesday, 18 October 20058:00 AM - 12:00 PM
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GEOCHEMICAL AND ND ISOTOPIC EVIDENCE FOR AN EXTENDING CONTINENTAL-MARGIN ARC/BACK ARC SETTING FOR PERALKALINE RHYOLITE-HOSTED MASSIVE SULFIDE DEPOSITS OF THE BONNIFIELD DISTRICT, EAST-CENTRAL ALASKA
T39 Advances in the Understanding of Tectonic Settings and Structural Control of Ore DepositsSunday, 16 October 20051:30 PM - 5:30 PM
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THE BLACK MOUNTAIN TECTONIC ZONE—A LONG-LIVED LITHOSPHERIC SHEAR ZONE IN THE YUKON-TANANA UPLAND OF EAST-CENTRAL ALASKA
T31 Mesozoic and Cenozoic Crustal Evolution of Alaska and Western Canada (Posters)Sunday, 16 October 20058:00 AM - 12:00 PM
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EVIDENCE FOR TECTONIC WEDGING OF AVALON TERRANE ROCKS INTO THE GANDER ZONE, SOUTHERN NEW ENGLAND
17 New Models of Appalachian Tectonics Inspired by Geochronology: 3rd Annual NETectonics Session ITuesday, 15 March 20058:00 AM - 12:00 PM
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A SILURIAN AGE FOR THE SPRINGFIELD GRANODIORITE: TECTONIC AND METAMORPHIC IMPLICATIONS FOR THE CENTRAL APPALACHIAN PIEDMONT
21 New Models of Appalachian Tectonics Inspired by Geochronology: 3rd Annual NETectonics Session IITuesday, 15 March 20051:00 PM - 3:40 PM
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THE CHAIN LAKES MASSIF: LAURENTIAN SOURCE AND ANATECTIC HISTORY
17 New Models of Appalachian Tectonics Inspired by Geochronology: 3rd Annual NETectonics Session ITuesday, 15 March 20058:00 AM - 12:00 PM
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STRAIN PARTITIONING AND THE TIMING OF HIGH-GRADE ACADIAN METAMORPHISM IN SOUTH-CENTRAL MAINE
17 New Models of Appalachian Tectonics Inspired by Geochronology: 3rd Annual NETectonics Session ITuesday, 15 March 20058:00 AM - 12:00 PM
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SHRIMP U-PB GEOCHRONOLOGY OF GRENVILLE GNEISSES AND GRANITOIDS, SHENANDOAH NATIONAL PARK REGION, NORTHERN VIRGINIA
4 Thermal History and Metamorphism of the Adirondacks in the Context of the Broader Grenville Orogenic Cycle IMonday, 14 March 20057:55 AM - 12:00 PM
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GEOCHRONOLOGY OF IGNEOUS AND METAMORPHIC EVENTS IN THE GNEISSIC BASEMENT ROCKS OF WESTERN CONNECTICUT
11 Thermal History and Metamorphism of the Adirondacks in the Context of the Broader Grenville Orogenic Cycle IIMonday, 14 March 20051:00 PM - 2:10 PM
2004
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MESOPROTEROZOIC POLYCRASE-TITANITE VEINS IN THE SULLIVAN PB-ZN-AG DEPOSIT, SOUTHEASTERN BRITISH COLUMBIA: MINERAL CHEMISTRY, SHRIMP GEOCHRONOLOGY, AND METALLOGENIC SIGNIFICANCE
191 Economic Geology I: Gold, Pb-Zn, and Iron Deposits and Isotopic TracersWednesday, 10 November 20048:00 AM - 12:00 PM
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CENTRAL IDAHO THRUST BELT
T236 Regional Geology of the Northern Rockies: A Session Honoring Betty SkippWednesday, 10 November 20041:30 PM - 5:30 PM
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PROTEROZOIC BASINS AND OROGENIC BELTS OF CENTRAL IDAHO
T112 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 IIMonday, 8 November 20041:30 PM - 5:30 PM
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ISOTOPIC CONSTRAINTS ON THE TIME OF DEPOSITION OF THE THUNDERHEAD SANDSTONE, OCOEE SUPERGROUP: U-PB GEOCHRONOLOGY OF MONAZITE AND XENOTIME OVERGROWTHS
33 Stratigraphy I: General StratigraphySunday, 7 November 20041:30 PM - 5:30 PM
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SHRIMP GEOCHRONOLOGY OF DETRITAL ZIRCONS FROM METASEDIMENTARY ROCKS IN SOUTH-CENTRAL CONNECTICUT: PRELIMINARY INTERPRETATIONS OF THE TECTONIC EVOLUTION OF THE AVALON TERRANE OF SOUTHERN NEW ENGLAND
51 Peri-Gondwanan Terranes of the Appalachians IIFriday, 26 March 20041:00 PM - 5:00 PM
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DECIPHERING MESOPROTEROZOIC AND PALEOZOIC EVENTS PRESERVED IN THE ISOTOPIC COMPOSITIONS OF ZIRCON AND TITANITE: SEM IMAGING, SHRIMP U-PB GEOCHRONOLOGY, AND EMP ANALYSIS
20 Nature and Timing of Grenvillian Orogenesis in Eastern North America (pre-Cambrian) IIThursday, 25 March 20041:00 PM - 5:00 PM
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PETROLOGY AND GEOCHRONOLOGY OF GRENVILLE-AGE MAGMATISM, BLUE RIDGE PROVINCE, NORTHERN VIRGINIA
20 Nature and Timing of Grenvillian Orogenesis in Eastern North America (pre-Cambrian) IIThursday, 25 March 20041:00 PM - 5:00 PM
2003
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AQUEOUS DISSOLUTION-PRECIPITATION AS A LINK BETWEEN MICROSTRUCTURE, PETROLOGY, AND RHEOLOGY
T21 Understanding Coupled Metamorphic and Deformational Processes: Advances in Integrated Textural, Chemical, and Microstructural AnalysisSunday, 2 November 20038:00 AM - 12:00 PM
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NEW SHRIMP U-PB AGES FOR LATE PROTEROZOIC AND PALEOZOIC IGNEOUS ROCKS IN THE AVALON AND BRONSON HILL TERRANES OF SOUTH-CENTRAL CONNECTICUT: CONFIRMATIONS AND SURPRISES
14 New Developments in Understanding of the Avalon Terrane from the southern Appalachians to Newfoundland IIThursday, 27 March 20031:40 PM - 5:00 PM
2002
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PETROGRAPHY, GEOCHRONOLOGY, AND SIGNIFICANCE OF CRYSTALLINE BASEMENT ROCKS AND IMPACT-DERIVED CLASTS IN THE CHESAPEAKE BAY IMPACT STRUCTURE, SOUTHEASTERN VIRGINIA
T204 Chesapeake Bay Impact Structure: Geology, Geophysics, and Geohydrology of America's Largest CraterWednesday, 30 October 20028:00 AM - 12:00 PM
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COMPLEX MESOZOIC DEFORMATION IN THE CENTRAL PART OF THE YUKON-TANANA UPLAND, ALASKA—IMPLICATIONS FOR GOLD DEPOSITION IN THE TINTINA GOLD PROVINCE
52 Economic Geology I: Magmatic PGE-Cr-Cu-Ni, VMS, Sed-hosted Pb-Zn-Cu, and Alaska Au DepositsMonday, 28 October 20028:00 AM - 12:00 PM
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SHRIMP U-PB GEOCHRONOLOGY OF ZIRCON AND SPHENE FROM THE NEW MILFORD QUADRANGLE, EASTERN HUDSON HIGHLANDS, CONNECTICUT
3 New Perspectives on the Grenville Orogeny in the United States and Canada: In Honor of Jim McLelland IMonday, 25 March 20028:00 AM - 12:00 PM
2001
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CRYSTALLINE ROCKS FROM THE FIRST COREHOLE TO BASEMENT IN THE CHESAPEAKE BAY IMPACT STRUCTURE, HAMPTON, VIRGINIA
183 Tectonics IV: Appalachian Tectonics- Evolution of OrogensThursday, 8 November 20011:30 PM - 5:30 PM
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ALLEGHANIAN METAMORPHIC OVERPRINT OF ACADIAN ROCKS IN SOUTHERN NEW ENGLAND: EVIDENCE FROM STRUCTURE, PETROLOGY AND THERMOCHRONOLOGY
183 Tectonics IV: Appalachian Tectonics- Evolution of OrogensThursday, 8 November 20011:30 PM - 5:30 PM
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TECTONIC SYNTHESIS OF RECENT GEOCHRONOLOGICAL AND GEOCHEMICAL DATA IN THE CENTRAL APPALACHIAN PIEDMONT OF SE PA AND N DEL
T110 Arc Terranes in the Appalachians and Caledonides and their Role in Paleozoic Orogenesis IIWednesday, 7 November 20018:00 AM - 12:00 PM
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U-PB GEOCHRONOLOGY OF GRENVILLE ROCKS IN THE EASTERN U.S.: DECIPHERING COMPLEX MULTI-AGE ZIRCONS
T11 Proterozoic Tectonic Evolution of the Grenville Orogen in Eastern North America IMonday, 5 November 20018:00 AM - 12:00 PM
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INTRUSIVE RELATIONS AND ISOTOPIC AGES OF DEVONIAN GRANITES IN SOUTHERN AND CENTRAL VERMONT: EVIDENCE FOR A PROLONGED ACADIAN OROGENY AND PARTITIONING OF COMPRESSIONAL STRAIN
32 Tectonics (Posters)Monday, 5 November 20011:30 PM - 5:30 PM
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PETROLOGIC AND TEMPORAL CHARACTERISTICS OF GRENVILLE-AGE OROGENESIS, BLUE RIDGE PROVINCE, VIRGINIA
T11 Proterozoic Tectonic Evolution of the Grenville Orogen in Eastern North America IMonday, 5 November 20018:00 AM - 12:00 PM
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RECORD OF LATE GRENVILLIAN MAGMATISM AND DEFORMATION IN THE NORTHERN BLUE RIDGE ANTICLINORIUM, VA AND MD, AND COMPARISON TO OTHER MASSIFS
T11 Proterozoic Tectonic Evolution of the Grenville Orogen in Eastern North America IMonday, 5 November 20018:00 AM - 12:00 PM
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NEW INSIGHTS INTO THE TECTONIC HISTORY OF THE MESOPROTEROZOIC BASEMENT OF THE NORTHERN APPALACHIANS: ONE COHERENT TERRANE?
T35 Proterozoic Tectonic Evolution of the Grenville Orogen in Eastern North America IIMonday, 5 November 20011:30 PM - 5:30 PM
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TIMING OF GRENVILLE-AGE MAGMATISM AND DEFORMATION, BLUE RIDGE PROVINCE, CENTRAL VIRGINIA
6 Advances in Geochronology and Thermochronology in the Appalachian OrogenThursday, 5 April 20018:15 AM - 12:00 PM
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MORPHOLOGY AND SHRIMP U-PB AGES OF ZIRCON AND MONAZITE FROM HIGH-GRADE ROCKS OF THE WILMINGTON COMPLEX, DELAWARE
40 Thermochronology from Apatite to Monazite: Deciphering Polymetamorphic TerranesWednesday, 14 March 20018:15 AM - 12:00 PM
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TIMING OF HIGH-GRADE ALLEGHANIAN METAMORPHIC OVERPRINT ON ACADIAN METAMORPHISM
40 Thermochronology from Apatite to Monazite: Deciphering Polymetamorphic TerranesWednesday, 14 March 20018:15 AM - 12:00 PM
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PRE-OTTAWAN DEFORMATION AND TRANSPRESSIONAL FAULTING IN THE HUDSON HIGHLANDS OF NEW YORK BASED ON SHRIMP ZIRCON AGES OF THE STORM KING GRANITE AND THE SYNTECTONIC CANOPUS PLUTON
4 Fault Zone Evolution and Convergent Tectonics: A Symposium in Honor of Rolfe StanleyMonday, 12 March 20018:15 AM - 12:15 PM
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REVISED MIDDLE ORDOVICIAN U-PB AGE FOR THE VOLCANIC CLEAR STREAM MEMBER, NE NEW HAMPSHIRE: REGIONAL IMPACT
13 Geologic Evolution of the Northern Appalachians; the Quebec-Vermont ConnectionMonday, 12 March 20011:30 PM - 5:30 PM
Date Unknown
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NEW GEOLOGIC MAP AND GEOCHRONOLOGY OF LOUDOUN COUNTY, VA
39 Geologic Maps, Digital Geologic Maps, and Derivatives from Geologic Maps (Posters)
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GEOLOGIC MAPS OF THE NATIONAL CAPITAL REGION FROM FEDMAP
14 The Value of Geologic Maps for Land and Water Resource Management—Examples from National Cooperative Geologic Mapping Program (FEDMAP, STATEMAP, and EDMAP) (Posters)