Geochronologic and rare-earth study of the Embudo granite and related rocks
— Marcia E. Register and D. G. Brookins

The Embudo Granite is located in north-central New Mexico in the Picuris Range of the southern Sangre de Cristo Mountains. Montgomery (1953) applied the term "Embudo" to all the Precambrian granitic rocks exposed between the Picuris Range and Santa Fe, about 48 km to the south. Samples analyzed in this study were collected from the area mapped by Montgomery (Miller and others, 1963) and Long (1974) (fig. 1).

The purpose of this study was to add to the framework for studies in the Picuris Range by: (1) determining the crystallization sequence of the Embudo Granite and (2) analyzing for rare-earth and other trace elements of two of the subunits of the Embudo Granite.