title: Rubidium-Strontium Isochron Study of the Grenville Front near Lake Timagami, Ontario.
abstract: Rubidium-strontium isotopic analyses of whole-rock samples and of constituent minerals from a suite of rocks taken across the Grenville Front demonstrate that granitic rocks of the Superior province, with a primary age of approximately 2.4 billion years, and older metasedimentary rocks were reconstituted during Grenville metamorphism, at approximately 930 million years, and now form part of the Grenville province.
authors.forename: J A
authors.initials: JA
authors.lastname: Grant