USGS · 70197813
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W. P. Irwin. 1980-01-01. The Klamath Mountains. https://doi.org/10.2113/gssgfbull.s7-xxii.4.527
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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.