1.3 Ga Mafic Magmatism of the St. Francois Mountains of SE Missouri: Implications for Mantle Composition Beneath Mid-Continental USA
O. T. Rämö, W. W. Boyd, M. Vaasjoki, R. L. Cameron and D. A. Ryckman
The University of Helsinki, Dept. of Geology, P.O.Box II, FIN-00014, Helsinki, Finland
Geological Survey of Finland, Betonimiehenkuja 4, FIN-02150, Espoo, Finland
1344 N. Bluff Rd., Collinsville, IL 62234, USA
Dept. of Geology and Geophysics, University of Missouri - Rolla, Rolla, MO 65401, USA