Tectonic evolution of Northwest California and Southwest Oregon
Tectonostratigraphic terrances in northwest California and southwest Oregon record a complex history of subduction, collision, and transform faulting. During the late Jurassic Nevadan orogeny, the Elder Creek-Snow Camp and western Klamath terranes were imbricated during collision of an island-arc system with the continental margin. Subsequent collisions are recorded in the Pickett Peak (Early Cretaceous) and Yolla Bolly (middle Cretaceous) terranes.
California, Oregon↗