TY - RPRT TI - Provenance and U-Pb geochronology of the Upper Cretaceous El Chanate Group, northwest Sonora, Mexico, and its tectonic significance AU - Cesar Jacques-Ayala AU - A. P. Barth AU - J. L. Wooden AU - C.E. Jacobson PY - 2009 DO - 10.1080/00206810902945066 UR - https://pubs.usgs.gov/publication/70035470 ID - 70035470 ER -