8898 Seminar Colloquium in the Earth Sciences
Speaker: Professor Ruth Elaine Blake, Department of Earth & Planetary Sciences, Yale University
Seminar Title: Phosphate in Deep Time, O isotope studies
Abstract: The oxygen isotope ratio (18O/16O) of phosphate (PO4) has proven to be a highly useful tracer of P cycling processes, a robust paleothermometer and chemical signature of life preserved in the rock record. This talk will focus on the record of early-Earth life and ocean temperature preserved in 3.2-3.5 Ga rocks from the Barberton Greenstone Belt, S. Africa, and processes leading to the imprinting of life and temperature. 18OPO4.
Host: Prof. Mathew Saltzman
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