Document Type

Honors Project On-Campus Access Only


The schist of Sierra de Salinas of central California originated as a sandstone deposited along the western margin of the North American continent, derived primarily from the Sierra Nevada Batholith. This body of rock was subducted along a shallow segment of the Farallon plate, bringing it in direct contact with recently emplaced granitic plutons in the upper plate, leading to high-temperature metamorphism. In this paper, age ranges of detrital and metamorphic processes are further constrained using U-Pb zircon geochronology. From this work it is clear that the schist derived from a protolith deposited no earlier than ca. 78 Ma and metamorphosed from ca. 78 to 60 Ma.



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