Supplemental Material: Early Ordovician seamounts preserved in the Canadian Cordillera: Implications for the rift history of western Laurentia

Abstract

<p>Detailed analytical methods for whole-rock trace-element and isotope geochemistry and U-Pb geochronology, including quality assurance and quality control calculations for geochemical data. Additional geochemistry diagrams, cathodoluminescence images of zircon crystals, and LA-ICP-MS data table are also included. </p>