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251 T199. Phanerozoic Earth System Shifts in the Marine Sedimentary Record


Session Chairs:
Makram Hedhli, Stephen E. Grasby, Shane Schoepfer, Geoffrey J. Gilleaudeau

This session explores Earth System shifts documented as perturbations to the Phanerozoic geochemical, lithological, and biogeochemical marine records, leading to climate shifts, anoxia, ocean acidification, and extinction events.



Presentations

Paper No. Title Presenting Author Start Time End Time Item Duration (min) Action
Introductory Remarks on Session 08:00 AM 08:05 AM 5 min
251-1 Lithium isotope constraints on terrestrial clay formation during the Ediacaran–Cambrian transition Tian Gan 08:05 AM 08:20 AM 15 min View
251-2 An investigation of the local redox landscape of the Middle Ordovician Baltoscandian carbonate shelf using I/Ca records Gwen Barnes 08:20 AM 08:35 AM 15 min View
251-3 New Thallium isotopes from Baltica and South China reveal global redox shifts coincide with significant declines in early Silurian biodiversity Nathaniel Evenson 08:35 AM 08:50 AM 15 min View
251-4 Thallium Isotopes Reveal Protracted Global Anoxia Through the Late Stages of the Early Silurian Ireviken Extinction Event John Goodin 08:50 AM 09:05 AM 15 min View
251-5 Dynamic Ocean Redox Changes Across Multiple Basins During the mid-Silurian Mulde/lundgreni Event Mahdi Maaleki-Moghadam 09:05 AM 09:20 AM 15 min View
251-6 Nitrogen isotope evidence for rapid depletion of bioavailable nitrate in the Illinois Basin across the Frasnian-Famennian boundary Geoffrey Gilleaudeau 09:20 AM 09:35 AM 15 min View
15 Minute Break 09:35 AM 09:50 AM 15 min
251-7 A Window of Opportunity: Waulsortian Mud Mounds as a Sedimentological Response to Geochemical Fluctuations Associated with the Tournaisian Carbon Isotope Excursion Kayla McCabe 09:50 AM 10:05 AM 15 min View
251-8 The Marine Nitrogen Cycle and Arc Volcanism at Penglaitan: Environmental Disturbance at the Junction of Ecological and Geological Timescales Shane Schoepfer 10:05 AM 10:20 AM 15 min View
251-9 Local and diagenetic restructuring of carbon isotope records shape observed Early Triassic carbon cycle instability: insights from the Great Bank of Guizhou (China) Jordan Todes 10:20 AM 10:35 AM 15 min View
251-10 Ocean Anoxic Event 2 in the Equatorial Atlantic Trans-Saharan Epicontinental Seaway: Implications for Redox and Carbon dynamics. Sadiq Rijiya 10:35 AM 10:50 AM 15 min View
251-11 New Calcium Isotope Records Examined with Calcite Growth Models Reveal Persistent Biocalcification Stress during the PETM Chuyan Wan 10:50 AM 11:05 AM 15 min View



Phanerozoic Earth System Shifts in the Marine Sedimentary Record

Description


Date and Time: Wednesday, 22 Oct - 8:00 AM (Central Time (US & Canada))

Room: HBGCC, 303AB

Session Type: Topical Sessions

Session Format: Oral


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