1. Thorium-uranium ratio of the Earth;Allègre;Chem. Geol.,1986
2. Geochemistry, petrogenesis and tectonic environment of Circum-Superior Belt basalts, Canada;Arndt,1987
3. The Circum-Superior Belt: a Proterozoic plate margin?;Baragar,1981
4. Geochronological calibration of the Precambrian Shield in Saskatchewan;Bell,1982
5. Lead-lead age of komatiitic lavas and limitations on the structure and evolution of the Precambrian mantle;Brévart;Earth Planet. Sci. Lett.,1986