1. Shallow water redox conditions from Permian-triassic boundary microbialites: the rare earth element and iodine geochemistry of carbonates from Turkey and South China Open Access Author: Loope, Garrison Richard Title: Shallow water redox conditions from Permian-triassic boundary microbialites: the rare earth element and iodine geochemistry of carbonates from Turkey and South China Graduate Program: Geosciences Keywords: Mass extinctionPermianTriassicREErare earth elementsanoxiaiodine File: Download Thesis_Final__2_.pdf Committee Members: Lee Kump, Thesis Advisor/Co-Advisor