%0 Journal Article %J Canadian Journal of Earth Sciences %D 1997 %T Reply: U-Pb date from Avalonian Cape Breton Island and Geochronologic Calibration of the Early Ordovician %A E. Landing %K geology %B Canadian Journal of Earth Sciences %V 34 %P 2130-2132 %G eng %U http://dx.doi.org/10.1139/e17-134 %R 10.1139/e17-134