Download or read book Geological Survey of Canada, Current Research (Online) no. 2000-F4 written by Anthony Davidson and published by Natural Resources Canada. This book was released on 2000 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents geochronological age determinations of zircons from eight plutons in the Grenville Province, Ontario (Oso and Mountain Grove plutons in the Sharbot Lake domain; Silver Lake & Bennett Bay plutons and Fall River mangeritic augen gneiss associated with the Maberly shear zone; North Crosby & Pike Lake plutons in the north-west sheared part of the Frontenac terrane; and the Beales Mills pluton in the interior of the Frontenac terrane). The results are used to propose a re-interpretation of the tectonics of the Frontenac suite and the origin of the magmas responsible.