TY - BOOK AU - Snyder,George L. AU - Brandt,Elaine L. AU - Smith,Vertie C. TI - Precambrian petrochemistry of the northern Park Range, Colorado, and its implications for studies of crustal derivation U1 - 553.2820978866 PY - 1988/// CY - Washington PB - United States Government Printing Office KW - Rocks, Metamorphic KW - Petrology KW - Park Range (Colo. and Wyo.) KW - Geochemistry KW - Geology, Stratigraphic KW - Precambrian KW - Geology N1 - Bibliography: p. 72-75 ER -