title: Comment on "Reconciliation of the Devils Hole climate record with orbital forcing".
abstract: Moseley et al's (Reports, 8 January 2016, p. 165) preferred-Termination-II age is subjective, as evidenced by variation in their Termination-II ages of 2500 years per meter. Termination-II-age bias decreases to zero at ~1.5 meters below the present-day water table, if one assumes linear variation with core-sample height. Maintaining the required gradient of thorium isotope230Th over 3.6 meters for 1000 years, much less 10,000 years, seems exceedingly unlikely.
authors.affiliation: U.S. Geological Survey, 431 National Center, Reston, VA 20192, USA.
authors.forename: Tyler B
authors.initials: TB
authors.lastname: Coplen
mesh_terms: D002980:Climate; D013910:Thorium
chemical_list: D013910:Thorium