Theodore Them
College of Charleston, Charleston, SC
Activity
2024
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A BRIEF PERIOD OF MARINE OXYGENATION DURING THE END-TRIASSIC MASS EXTINCTION – A THALLIUM ISOTOPE MODELLING APPROACH
T15 Understanding the Links between Life, Biogeochemical Cycles, and Environmental Feedbacks throughout the MesozoicSunday, 22 September 20248:00 AM - 12:00 PM207B
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DEOXYGENATION PRIOR TO OAE-2
T15 Understanding the Links between Life, Biogeochemical Cycles, and Environmental Feedbacks throughout the MesozoicSunday, 22 September 20248:00 AM - 12:00 PM207B
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RESOLVING THE DRIVER OF THE END-CRETACEOUS MASS EXTINCTION USING SEDIMENTARY MERCURY GEOCHEMISTRY: VOLCANISM VERSUS IMPACT
41 Undergraduate Research Poster Session I (Posters)Tuesday, 16 April 20248:00 AM - 12:00 PMGrand Ballroom
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CALIBRATION AND APPLICATION OF THE MERCURY GEOCHEMICAL PROXY IN LONGNOSE GAR SCALES: RESOLVING THE DRIVER OF THE PALEOCENE-EOCENE THERMAL MAXIMUM
21 Geochemical Proxies for Marine and Continental PaleoenvironmentsMonday, 15 April 20243:50 PM - 5:30 PMWindsor Ballroom Salon A
2023
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COMPARATIVE ANALYSIS OF SEDIMENTARY MERCURY GEOCHEMICAL RECORDS ACROSS THE CRETACEOUS-PALEOGENE BOUNDARY FROM THE NORTH AMERICAN INTERIOR
T259 Mass Extinctions as Natural Experiments in Earth System Perturbations IIWednesday, 18 October 20231:30 PM - 5:30 PM301 / 302
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EXPANSIONS OF OCEANIC ANOXIA FOLLOWING THE END–TRIASSIC MASS EXTINCTION REVEALED BY TL ISOTOPES
T216 Mass Extinctions as Natural Experiments in Earth System Perturbations IWednesday, 18 October 20238:00 AM - 12:00 PM301 / 302
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PANIC! IN THE PANTHALASSIC: REDOX TRENDS LEADING UP TO THE END-TRIASSIC MASS EXTINCTION FROM EASTERN PANTHALASSA
T216 Mass Extinctions as Natural Experiments in Earth System Perturbations IWednesday, 18 October 20238:00 AM - 12:00 PM301 / 302
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A LONG-TERM RECORD OF THE LATE TRIASSIC THROUGH EARLY JURASSIC CARBON CYCLE
T216 Mass Extinctions as Natural Experiments in Earth System Perturbations IWednesday, 18 October 20238:00 AM - 12:00 PM301 / 302
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HIGH-RESOLUTION SEDIMENTARY MERCURY RECORDS FROM THE ATLANTIC COASTAL PLAIN DURING THE PALEOCENE-EOCENE THERMAL MAXIMUM
T112 Sedimentary Geology Division/SEPM Student Research Poster Competition: Dynamics of Stratigraphy and Sedimentation (Posters)Monday, 16 October 20238:00 AM - 5:30 PMHall B
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LATE TRIASSIC CONODONTS FROM NEW YORK CANYON, NEVADA, AND THEIR RELEVANCE TO THE POSITION OF THE NORIAN-RHAETIAN BOUNDARY
T7 Celebrating the Diverse Utility of Conodonts in the Birthplace of the Color Alteration Index, the Appalachian Basin: Integrated Studies of the Biosphere, Stratigraphy, and GeochemistrySunday, 15 October 20238:00 AM - 12:00 PM303
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REDOX FLUCTUATIONS ACROSS THE END TRIASSIC MASS EXTINCTION: TL ISOTOPIC EVIDENCE FOR EXPANSIONS IN GLOBAL ANOXIA
7 D5. Paleontology and Paleoclimatology (Posters)Friday, 17 March 20238:00 AM - 12:00 PMGrand Ballroom A–D
2022
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COMPARATIVE ANALYSIS OF SEDIMENTARY MERCURY GEOCHEMICAL RECORDS FROM LAND TO OPEN OCEAN DURING THE TRIASSIC-JURASSIC TRANSITION
T259 Dynamics of Earth’s Climate System and Biogeochemical Cycles in Deep TimeWednesday, 12 October 20221:30 PM - 5:30 PM506
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A MAJOR ISSUE WITH OCEANIC ANOXIC EVENTS: OXYGEN PRODUCTION AND POSSIBLE MEANS TO REDUCE IT
T259 Dynamics of Earth’s Climate System and Biogeochemical Cycles in Deep TimeWednesday, 12 October 20221:30 PM - 5:30 PM506
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REMINERALIZATION AND DENITRIFICATION: NITROGEN AS A LOCAL REDOX INDICATOR ACROSS THE END-TRIASSIC MASS EXTINCTION
T259 Dynamics of Earth’s Climate System and Biogeochemical Cycles in Deep TimeWednesday, 12 October 20221:30 PM - 5:30 PM506
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CONSTRAINING LONG-TERM REDOX CONDITIONS IN THE TROPICAL PANTHALASSIC OCEAN DURING THE LATE TRIASSIC THROUGH THE EARLY JURASSIC
T259 Dynamics of Earth’s Climate System and Biogeochemical Cycles in Deep TimeWednesday, 12 October 20221:30 PM - 5:30 PM506
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A NEW SEDIMENTARY MERCURY RECORD TO EVALUATE THE SILURIAN NIAGARA-SALINA TRANSITION MICHIGAN BASIN, USA
2 Development and Application of Geochemical Proxies to Paleoclimate StudiesThursday, 7 April 20228:00 AM - 12:00 PMNorth Meeting Room 201/202
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TOMBSTONE WEATHERING IN CHARLESTON, SOUTH CAROLINA
11 Urban Geochemistry and HydrologyThursday, 7 April 20222:45 PM - 5:30 PMNorth Meeting Room 206
2021
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TERRESTRIAL MERCURY CONCENTRATION RECORDS ACROSS THE CRETACEOUS-PALEOGENE INTERVAL IN NORTH AMERICA
226 D36: Planetary Potpourri (Posters)Wednesday, 13 October 20219:00 AM - 1:00 PMExhibit Hall A
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A LONG-TERM CARBON ISOTOPE RECORD ACROSS THE TRIASSIC-JURASSIC TRANSITION FROM ALASKA
T75 From the Burgess Shale to the Manis Mastodon: 500 Million Years of Environmental & Evolutionary Change in the Great NorthwestMonday, 11 October 20218:00 AM - 12:00 PME145
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EVALUATING SEDIMENTARY MERCURY CONCENTRATIONS ACROSS THE LATE DEVONIAN FRASNIAN-FAMMENIAN MASS EXTINCTION EVENT FROM THE MICHIGAN AND APPALACHIAN BASINS
T122 New Perspectives on Phanerozoic Mass Extinctions and Environmental Perturbations (Posters)Monday, 11 October 20212:30 PM - 6:30 PMExhibit Hall A
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THE GROTTO CREEK SUCCESSION: A UNIQUE RECORD OF LATE TRIASSIC – EARLY JURASSIC ENVIRONMENTAL AND BIOLOGIC CHANGE
24 D14. Recent Advances in Paleoclimatology/Paleoceanography (Posters)Sunday, 10 October 20219:00 AM - 1:00 PMExhibit Hall A
2020
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SEDIMENT CORES FROM WHITE POND, SOUTH CAROLINA, CONTAIN A PLATINUM ANOMALY, PYROGENIC CARBON PEAK, AND COPROPHILOUS SPORE DECLINE AT 12.8 KA
65 D4. Geochemistry (Posters)Sunday, 22 March 20201:30 PM - 5:30 PMGrand Ballroom E–G
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SEDIMENTARY MERCURY CONCENTRATIONS AND ISOTOPES ACROSS THE END-CRETACEOUS MASS EXTINCTION EVENT FROM NEW JERSEY
57 Drill, Drill, Drill! A Tribute to USGS Drillers Eugene "Big Gene" Cobbs, Eugene "Little Gene" Cobbs, III, and Jeff Grey, and Their Contributions to Geologic Research East of the Mississippi River (Posters)Sunday, 22 March 20208:00 AM - 12:00 PMGrand Ballroom A–D
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THALLIUM ISOTOPES TRACK CHANGING OCEANIC OXYGEN ACROSS THE PALEOCENE-EOCENE THERMAL MAXIMUM
32 Chemostratigraphic, Biotic, and Sedimentologic Changes through Earth HistorySaturday, 21 March 20208:00 AM - 12:00 PMLake Audubon
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HIGH-RESOLUTION SEDIMENTARY [HG] RECORDS ACROSS THE PETM FROM A TERRESTRIAL LATITUDINAL TRANSECT IN NORTH AMERICA
50 Chemostratigraphic, Biotic, and Sedimentologic Changes through Earth History (Posters)Saturday, 21 March 20201:30 PM - 5:30 PMLake Anne
2019
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MERCURY AS A PROXY FOR VOLCANIC EMISSIONS IN THE GEOLOGIC RECORD
T296 Volcanism, Impacts, and Phanerozoic Mass Extinctions: Discovering a Common Cause and Planning for the 6th Mass Extinction IIWednesday, 25 September 20191:30 PM - 5:30 PMRoom 227ABC, North Building
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EVIDENCE FOR INCREASED OCEAN OXYGENATION DURING THE RECOVERY OF THE PALEOCENE–EOCENE THERMAL MAXIMUM
T36 Oceans and Climates throughout Earth’s History: From Proxy Reconstructions to Model Assessments (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
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LATE PALEOZOIC IRON FERTILIZATION FROM DUST ENHANCED SHALLOW MARINE PRIMARY PRODUCTIVITY
T36 Oceans and Climates throughout Earth’s History: From Proxy Reconstructions to Model Assessments (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
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OCEAN, ATMOSPHERE, LAND: ASSESSING THE SOURCE(S) OF MERCURY TO SEDIMENTS ACROSS THE PALEOCENE-EOCENE THERMAL MAXIMUM
T36 Oceans and Climates throughout Earth’s History: From Proxy Reconstructions to Model Assessments (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
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ASSESSING THE CHEMOSTRATIGRAPHIC RECORD OF SEDIMENTARY MERCURY CONCENTRATIONS ACROSS THE END-CRETACEOUS MASS EXTINCTION EVENT
T36 Oceans and Climates throughout Earth’s History: From Proxy Reconstructions to Model Assessments (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
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TRACKING THE INITIAL ONSET OF DEOXYGENATION ACROSS THE PALEOCENE-EOCENE THERMAL MAXIMUM
29 Reconstructing Paleo-Environmental Changes (Posters)Friday, 29 March 20198:00 AM - 12:00 PMCarolina Ballroom
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A MULTI-BASIN SEDIMENTARY MERCURY ANALYSIS OF THE MIOCENE MONTEREY FORMATION
29 Reconstructing Paleo-Environmental Changes (Posters)Friday, 29 March 20198:00 AM - 12:00 PMCarolina Ballroom
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DO SEDIMENTARY MERCURY ANOMALIES REFLECT MASSIVE VOLCANISM? A GLOBAL COMPILATION OF MERCURY CONTENTS ACROSS THE PLIENSBACHIAN-TOARCIAN (EARLY JURASSIC)
29 Reconstructing Paleo-Environmental Changes (Posters)Friday, 29 March 20198:00 AM - 12:00 PMCarolina Ballroom
2018
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ENVIRONMENTAL CONTROLS ON ORGANIC CARBON PRODUCTIVITY IN THE MIDLAND BASIN
T258 Earth-Life Transitions: Critical Information from Deep Time to Manage Future Environmental Change (Posters)Wednesday, 7 November 20189:00 AM - 6:30 PMHalls J-K
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ATMOSPHERIC DUST STIMULATED MARINE PRIMARY PRODUCTIVITY DURING EARTH’S PENULTIMATE ICEHOUSE
T235 Earth-Life Transitions: Critical Information from Deep Time to Manage Future Environmental ChangeWednesday, 7 November 20188:00 AM - 12:00 PMRoom 143-144
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ARE OAES ACTUALLY CBES? EVIDENCE OF MARINE ANOXIA THROUGH THE EYES OF A NOVEL METAL ISOTOPE
T11 New Developments in Geochemical Proxies for Paleoceanographic ResearchSunday, 4 November 20188:00 AM - 12:00 PMRoom 140