The present study is linked to the Ancient Pacific Margin NATMAP program and is part of a multi- disciplinary effort by the B.C. Geological Survey Branch within the region. Ray et al. (2001) and Dunne et al. (2001) are conducting a detailed examination of ...

<p>The object of this study is to construct a lithologic and geochemical model of the crust in the central Colorado Plateau, based on the combined input of field, xenolith, seismic, and heat flow data. The Four Corners area straddles a proposed Proterozoic crustal ...