Abstract

Zircons in volcanic rock clasts of the Eocene Poway Conglomerate in San Diego County, California, have lead-alpha dates that range from 190 to 260 m.y. Three similar felsites of the Sidewinder and Hodge Volcanic Series in the central Mojave Desert range from 210 to 260 m.y. in age. Because no other similar rocks of this age are known to exist in Southern California or adjacent areas, it is tentatively concluded that many felsite clasts of the Poway Conglomerate were originally derived from Permian-Triassic rocks of the Mojave Desert.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.