"From 570 million to 5 billion years ago" . . . . . . . . "Pre-Cambrian geology of the Picuris Range, north central New Mexico : petrology and structure of metamorphosed sedimentary and igneous rocks and description of mineral resources" . . . "Pre-Cambrian geology of the Picuris Range, north central New Mexico petrology and structure of metamorphosed sedimentary and igneous rocks and description of mineral resources"@en . . . . . . . . . . . .