1. The circum-Superior belt: a Proterozoic plate margin;Baragar,1981
2. Nd isotopic studies of Penokean basalts and their bearing on Proterozoic plate tectonics;Beck;Am. Geophys. Union Trans.,1984
3. Plate tectonics as a model for the environment of deposition and deformation of the early Proterozoic (Precambrian X), northern Michigan;Cambray;Geol. Soc. Am.,1978
4. The Interpretation of Igneous Rocks;Cox,1979
5. Neodymium isotopes in the Colorado Front Range and crust-mantle evolution in the Proterozoic;DePaolo;Nature,1981