Latest Ordovician (Hirnantian) iodine to calcium ratio (I/Ca) data for Anticosti Island (Quebec, Canada) and Copenhagen Canyon (Nevada, USA)

This spreadsheet contains redox proxy data (I/Ca) associated with the manuscript "Depth-dependent Late Ordovician anoxia related to a reorganization of ocean circulation", for the Latest Ordovician (latest Hirnantian, Late Ordovician Mass Extinction phase #2 – LOME 2; ca. 444 million years ago) in Anticosti Island (Quebec, Canada) and Copenhagen Canyon (Nevada, USA). The reader is referred to the associated paper for a description of the methods.