High-precision ultra-distal Holocene tephrochronology in North America

Sean D. F. Pyne-O'Donnell^*, Paul D. M. Hughes, Duane G. Froese, Britta J. L. Jensen, Stephen C. Kuehn, Gunnar Mallon, Matthew J. Amesbury, Dan J. Charman, Tim J. Daley, Neil J. Loader, Dmitri Mauquoy, F. Alayne Street-Perrott, Jonathan Woodman-Ralph