The Science of Sustainability

lastrampasgeomap

Rocks of Las Trampas: Tn, Neroly Formation (Miocene); Tbr/Tbg/Tbd, Briones Formation (Miocene); Tus, unnamed sedimentary/volcanic rocks (Pliocene). Alameda and Contra Costa county geologic maps are spliced together at the thin white line

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lastrampasgeomap