TY - RPRT TI - Field trip to a Laramide shallow subduction channel: Orocopia Schist in the Gavilan Hills, southeasternmost California; with incidental localities for three blue minerals AU - Gordon B. Haxel AU - Carl E. Jacobson AU - Gabe S. Epstein PY - 2026 UR - https://pubs.usgs.gov/publication/70273731 ID - 70273731 ER -