This page discusses the Coast Ranges of North America, which stretch from Santa Barbara to the Oregon border and are divided into Northern and Southern sections. Primarily made of Mesozoic and Cenozoi...This page discusses the Coast Ranges of North America, which stretch from Santa Barbara to the Oregon border and are divided into Northern and Southern sections. Primarily made of Mesozoic and Cenozoic sedimentary rocks, the region features diverse geological characteristics influenced by tectonic activity. Key topics include the Coast Range Ophiolite, Franciscan Complex, geothermal fields, and metamorphic rocks, with objectives focusing on tectonic impacts and coastal geomorphic features.
This page describes the geological history of California's Central Valley, revealing its origin as a forearc basin influenced by ancient volcanoes. Erosion transported volcanic debris, forming the Gre...This page describes the geological history of California's Central Valley, revealing its origin as a forearc basin influenced by ancient volcanoes. Erosion transported volcanic debris, forming the Great Valley Sequence, which includes various sedimentary rocks. Although mostly covered by newer sediments, some formations show tectonic uplift. Additionally, the nearby Franciscan formation is related to the subduction of the Farallon Plate, highlighting the area's complex geology.
