William E. Lukens
James Madison University, Harrisonburg, VA
Activity
2025
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THE NEOGENE-QUATERNARY HISTORY OF C4 GRASSLANDS AND SAVANNAS IN NORTH AMERICA: INSIGHTS FROM STABLE ISOTOPE PROXIES
1 Biogeochemical Cycling of Elements at the Earth’s Surface Across Space and TimeThursday, 20 March 20258:00 AM - 10:00 AMAlleghany A
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EARLY MIOCENE VEGETATION RECONSTRUCTION USING BULK ORGANIC MATTER AND PEDOGENIC CARBONATE ISOTOPE ANALYSIS FROM MORUOROT, WEST TURKANA, KENYA
1 Biogeochemical Cycling of Elements at the Earth’s Surface Across Space and TimeThursday, 20 March 20258:00 AM - 10:00 AMAlleghany A
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GEOCHEMICAL CHARACTERIZATION OF PLIO-PLEISTOCENE PALEOSOLS IN THE BTB-13 CORE BARINGO, KENYA
1 Biogeochemical Cycling of Elements at the Earth’s Surface Across Space and TimeThursday, 20 March 20258:00 AM - 10:00 AMAlleghany A
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MIDDLE MIOCENE PRECIPITATION SEASONALITY IN DERBYSHIRE, UK BASED ON STABLE CARBON ISOTOPE PROFILES IN FOSSIL WOOD
1 Biogeochemical Cycling of Elements at the Earth’s Surface Across Space and TimeThursday, 20 March 20258:00 AM - 10:00 AMAlleghany A
2024
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EARLY MIOCENE VEGETATION RECONSTRUCTION USING BULK ORGANIC MATTER AND PEDOGENIC CARBONATE ISOTOPE ANALYSIS FROM MORUOROT, WEST TURKANA, KENYA
T267 130 Years of Research in the Turkana Basin, Kenya: Insights into Earth, Climate, and Life in Eastern Africa Topical Session (Posters)Wednesday, 25 September 20248:00 AM - 5:30 PMHall D
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PALEOENVIRONMENTS AND PALEOCLIMATE OF EARLY MIOCENE FOSSILIFEROUS STRATA AT MORUOROT, WEST TURKANA, KENYA
T219 130 Years of Research in the Turkana Basin, Kenya: Insights into Earth, Climate, and Life in Eastern Africa Topical SessionTuesday, 24 September 20241:30 PM - 5:30 PM207A
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GEOCHRONOLOGY AND TERRESTRIAL PALEOENVIRONMENTS OF THE MIDDLE MIOCENE HOMINOID FOSSIL-BEARING STRATA AT BULUK, TURKANA BASIN, KENYA
T219 130 Years of Research in the Turkana Basin, Kenya: Insights into Earth, Climate, and Life in Eastern Africa Topical SessionTuesday, 24 September 20241:30 PM - 5:30 PM207A
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DEGREES OF CHANGE: RECONSTRUCTING PALEOTEMPERATURE AND PALEOSOL SOIL WATER IN BARINGO BASIN, KENYA
T207 Investigating Earth’s Past, Present, and Future with Continental Scientific DrillingTuesday, 24 September 20241:30 PM - 5:30 PM212A
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RECONSTRUCTING MIOCENE ECOLOGIES IN THE TURKANA BASIN: INSIGHTS FROM PLANT WAX N-ALKANES
T219 130 Years of Research in the Turkana Basin, Kenya: Insights into Earth, Climate, and Life in Eastern Africa Topical SessionTuesday, 24 September 20241:30 PM - 5:30 PM207A
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A QUANTITATIVE FRAMEWORK FOR RECONSTRUCTING C4 PLANT FRACTIONS IN ANCIENT BIOMES AND MAMMAL DIETS USING STABLE CARBON ISOTOPES
21 Geochemical Proxies for Marine and Continental PaleoenvironmentsMonday, 15 April 20243:50 PM - 5:30 PMWindsor Ballroom Salon A
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PALEOSOL ANALYSIS OF A MIDDLE MIOCENE PRIMATE FOSSIL SITE IN WEST TURKANA, KENYA
16 Undergraduate Research Oral SessionMonday, 15 April 20241:30 PM - 2:50 PMVictoria
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TESTING THREE DIFFERENT ANALYTICAL METHODS FOR ESTIMATING ORGANIC CARBON CONTENTS (SOC) OF SOILS
27 D9. Soils and Soil Processes (Posters)Monday, 15 April 20241:30 PM - 5:30 PMGrand Ballroom
2023
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SEDIMENTOLOGY AND STRATIGRAPHY OF EARLY MIOCENE HOMINOID-BEARING STRATA AT MORUOROT, WEST TURKANA, KENYA
T167 Exploring Changes in Climate, Flora, and Fauna of Africa through the Cenozoic (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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PALEOENVIRONMENTAL AND PALEOCLIMATIC RECONSTRUCTION OF A MIDDLE MIOCENE PRIMATE FOSSIL SITE IN WEST TURKANA, KENYA
T167 Exploring Changes in Climate, Flora, and Fauna of Africa through the Cenozoic (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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PALEOSOL CORE-LATIONS AND STABLE ISOTOPES IN THE EASTERN AFRICAN RIFT
T167 Exploring Changes in Climate, Flora, and Fauna of Africa through the Cenozoic (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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PLIO-PLEISTOCENE PALEOVEGETATION RECONSTRUCTION USING BULK PALEOSOL ORGANIC MATTER FROM THE BARINGO BASIN, KENYA
T167 Exploring Changes in Climate, Flora, and Fauna of Africa through the Cenozoic (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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CHARACTERIZATION OF CONGLOMERATES IN THE EARLY MIOCENE LOTHIDOK FORMATION OF WEST TURKANA, KENYA
T167 Exploring Changes in Climate, Flora, and Fauna of Africa through the Cenozoic (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
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PALEOPEDOLOGY AND PALEOCLIMATE OF THE PLIO-PLEISTOCENE CHEMERON FORMATION, BARINGO BASIN, KENYA
T121 Exploring Changes in Climate, Flora, and Fauna of Africa through the CenozoicMonday, 16 October 20231:30 PM - 5:30 PM321
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RECONSTRUCTING THE CLIMATE AND ECOLOGY OF AN EARLY MIOCENE TROPICAL FOREST ON THE FLANKS OF THE TINDERET VOLCANO, KISUMU COUNTY, WESTERN KENYA
T121 Exploring Changes in Climate, Flora, and Fauna of Africa through the CenozoicMonday, 16 October 20231:30 PM - 5:30 PM321
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PALEOCLIMATE RECONSTRUCTIONS OF THE EARLY MIOCENE HOMINOID FOSSIL SITES FROM CHAMTWARA, LEGETET AND KORU, TINDERET, WESTERN KENYA
T121 Exploring Changes in Climate, Flora, and Fauna of Africa through the CenozoicMonday, 16 October 20231:30 PM - 5:30 PM321
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PRELIMINARY EXAMINATION OF PALYNOLOGY ACROSS THE K-PG BOUNDARY IN THE JACKSON PURCHASE REGION OF KENTUCKY
51 Paleoenvironment and Paleobiology of Late Cretaceous Sediments Near Coon Creek, Tennessee (Posters)Sunday, 19 March 20238:00 AM - 12:00 PMGrand Ballroom A–D
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IDENTIFICATION OF MICROPLASTICS EXTRACTED FROM THE STOMACHS OF LARGEMOUTH BASS FROM THE MID-ATLANTIC REGION USING TRANSMISSION FTIR MICROSCOPY
28 Undergraduate Research Poster Session II (Posters)Saturday, 18 March 20238:00 AM - 12:00 PMGrand Ballroom A–D
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EVALUATING THE DECOMPOSTION OF MINERAL MUSEUM VIVIANITE SPECIMENS USING VISIBLE LIGHT, LONGWAVE UV LIGHT, AND HEAT EXPERIMENTS
21 Undergraduate Research Poster Session I (Posters)Friday, 17 March 20231:30 PM - 5:30 PMGrand Ballroom A–D
2022
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EARLY PLIOCENE PALEOSOLS OF THE BARINGO BASIN, KENYA
T183 Soils and Paleosols across Space and Time II: A Celebration of Steven G. DrieseTuesday, 11 October 20221:30 PM - 5:30 PM207
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REINTERPRETING THE JUNIATA PALEO-VERTISOL (LATE ORDOVICIAN) AT BEANS GAP IN EASTERN TENNESSEE
T145 Soils and Paleosols across Space and Time I: A Celebration of Steven G. DrieseTuesday, 11 October 20228:00 AM - 12:00 PM207
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RECONSTRUCTION OF EARLY MIOCENE PALEOFLORA AND PALEOCLIMATE OF KORU REGION (NYANZA PROVINCE, WESTERN KENYA): IMPLICATIONS FOR EARLY HOMINOID EVOLUTION
T169 Oceans and Climates through Earth History: From Proxy Reconstructions to Model Assessments (Posters)Tuesday, 11 October 20229:00 AM - 1:00 PMExhibit Hall F
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TESTING ACCURACY AND PRECISION OF LOSS-ON-IGNITION ANALYSIS FOR SOILS AND PALEOSOLS
T98 Emerging Voices in Soil and Paleosol Science (Posters)Monday, 10 October 20229:00 AM - 1:00 PMExhibit Hall F
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DETERMINATION OF PAST AND PRESENT SEASONAL TEMPERATURE IN ARCTIC SIBERIA USING HIGH-RESOLUTION INTRA-RING OXYGEN ISOTOPE MEASUREMENTS ACROSS TREE RINGS
T96 New Perspectives for Reconstructing Past Arctic Environments: Climate, Ecosystems, and Depositional Systems (Posters)Monday, 10 October 20229:00 AM - 1:00 PMExhibit Hall F
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RECONSTRUCTION OF EARLY PLIOCENE HYDROCLIMATE FROM CHEMERON FORMATION PALEOSOLS IN THE BARINGO BASIN, KENYA
T98 Emerging Voices in Soil and Paleosol Science (Posters)Monday, 10 October 20229:00 AM - 1:00 PMExhibit Hall F
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A MONTE CARLO APPROACH TO QUANTIFYING UNCERTAINTY IN C4 BIOMASS ESTIMATES FROM PALEOSOL ORGANIC MATTER AND CARBONATES
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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A NON-DESTRUCTIVE TECHNIQUE FOR ASSESSING FOSSIL WOOD DECAY USING ATR-FTIR SPECTROSCOPY
19 Development and Application of Geochemical Proxies to Paleoclimate Studies (Posters)Thursday, 7 April 20221:30 PM - 5:30 PMJunior Ballroom B
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PETROLOGIC AND GEOCHEMICAL INVESTIGATION OF CAMP DIKES FROM THE BLUE RIDGE AND VALLEY AND RIDGE IN CENTRAL VIRGINIA
38 North Atlantic Arcs, Rifts, and Plumes: Ordovician to Today (Posters)Monday, 21 March 20221:30 PM - 5:30 PMFreedom Hall A
2021
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REVISITING THE CRETACEOUS-PALEOGENE BOUNDARY IN WESTERN KENTUCKY, USA
226 D36: Planetary Potpourri (Posters)Wednesday, 13 October 20219:00 AM - 1:00 PMExhibit Hall A
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A WOODLAND-SAVANNA MOSAIC IN THE EARLY MIDDLE MIOCENE AT BULUK, TURKANA BASIN, KENYA
T38 Assessing Causes, Consequences, and Time Scales of Miocene Climate and Environmental ChangeSunday, 10 October 20211:30 PM - 5:30 PME141/E142 (Hybrid Room)
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EARLY MIOCENE EVIDENCE FOR C4 BIOMASS IN KENYA AND UGANDA
T38 Assessing Causes, Consequences, and Time Scales of Miocene Climate and Environmental ChangeSunday, 10 October 20211:30 PM - 5:30 PME141/E142 (Hybrid Room)
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MINERALOGY AND PALEOSOL MICROMORPHOLOGY FROM THE EARLY MIOCENE SONGHOR LOCALITY IN KENYA
18 Undergraduate Research II (Posters)Friday, 2 April 20211:30 PM - 5:30 PMSouthern Company Research & Development Room
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APPLYING SPATIAL ANALOG MATCHING TO DISCERN LATE OLIGOCENE PALEO-MONSOON CLIMATOLOGY IN SOUTHERN CHINA
5 Reconstructing Ancient Environmental ConditionsThursday, 1 April 20218:00 AM - 12:00 PMAuburn University Geosciences Room
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DENDROCLIMATOLOGY OF WHITE OAK TREES IN THE SHENANDOAH VALLEY, VIRGINIA
9 Undergraduate Research I (Posters)Thursday, 1 April 20211:30 PM - 3:40 PMAuburn University Geosciences Room
2020
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EARLY MIOCENE EVOLUTION OPEN ECOSYSTEMS AND C4 VEGETATION IN EQUATORIAL EAST AFRICA
T210 Sedimentary Records of Neogene and Quaternary Environmental Change from Eastern AfricaThursday, 29 October 20201:30 PM - 5:30 PMMeeting Rooms
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FRESHWATER TRACE FOSSILS ASSOCIATED WITH A FLUVIALLY REWORKED HUCKLEBERRY RIDGE ASH DEPOSIT
T99 Ichnology as a Global Proxy Multitool to Reconstruct Biodiversity, Ecology, Hydrology, and Climate in Continental to Marine Settings IITuesday, 27 October 20205:30 PM - 8:00 PMMeeting Rooms
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BIOGENIC STRUCTURES AND INFERRED DEPOSITIONAL ENVIRONMENTS OF A SPATIALLY EXTENSIVE CALCARENITE/SANDY LIMESTONE DEPOSIT NEAR MONAHANS, TEXAS
T99 Ichnology as a Global Proxy Multitool to Reconstruct Biodiversity, Ecology, Hydrology, and Climate in Continental to Marine Settings IITuesday, 27 October 20205:30 PM - 8:00 PMMeeting Rooms
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DISSECTING THE EAST ASIAN MONSOON: SEASONAL RAINFALL PATTERNS FROM LATE OLIGOCENE FOSSIL WOOD
50 Chemostratigraphic, Biotic, and Sedimentologic Changes through Earth History (Posters)Saturday, 21 March 20201:30 PM - 5:30 PMLake Anne
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LANDSCAPE EVOLUTION ACROSS THE CRETACEOUS-PALEOGENE BOUNDARY IN SOUTHWESTERN NORTH DAKOTA
50 Chemostratigraphic, Biotic, and Sedimentologic Changes through Earth History (Posters)Saturday, 21 March 20201:30 PM - 5:30 PMLake Anne
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CAMBORYGMA ASSEMBLAGE IN THE AFTERMATH OF A YELLOWSTONE HOTSPOT ERUPTION
5 Mega-Traces: Advances in Ichnology and ZoogeomorphologyFriday, 20 March 20208:00 AM - 12:00 PMLake Audubon
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A LARGE LATE QUATERNARY PALEOLAKE NEAR MONAHANS, TEXAS, INFERRED BY LARGE-SCALE BIOGENIC STRUCTURES
5 Mega-Traces: Advances in Ichnology and ZoogeomorphologyFriday, 20 March 20208:00 AM - 12:00 PMLake Audubon