PAIRED MIDDLE–LATE ORDOVICIAN CONTINENTAL WEATHERING (87SR/86SR AND ΕND(T)) AND PALEOTEMPERATURE (δ18O) PROXY MEASUREMENTS LINK ENHANCED MAFIC WEATHERING TO GLOBAL COOLING
CONWELL, Christopher1, SALTZMAN, Matthew1, EDWARDS, Cole2, GRIFFITH, Elizabeth M.3 and ADIATMA, Yoseph1, (1)School of Earth Sciences, Ohio State University, Columbus, OH 43210, (2)Department of Geological and Environmental Sciences, Appalachian State University, Boone, NC 28608, (3)School of Earth Sciences, The Ohio State University, 125 South Oval Mall, Columbus, OH 43210