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Sea stacks on Oregon Coast
Sea stacks at Bandon Beach, Oregon coast. Rock consists of Jurassic Otter Point Formation. (140420-105)
Download ImageGolden Gate Bridge and San Francisco, CA
Golden Gate Bridge and San Francisco, California (140326-39)
Download ImageFolded radiolarian (ribbon) chert, California
Folded radiolarian (ribbon) chert of the Cretaceous Franciscan Assemblage. California. (140326-37)
Download ImageGolden Gate Bridge and San Francisco, CA
Golden Gate Bridge and San Francisco, California (140326-42)
Download ImageFolded radiolarian (ribbon) chert, California
Folded radiolarian (ribbon) chert of the Cretaceous Franciscan Assemblage. California. (140326-30)
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Pinnacles National Park, California
23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-56)
Download ImageDifferential erosion, Pinnacles, California
Differential erosion of 23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-6)
Download Image140325-54t
Cavernous weathering and erosion of 23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-50t)
Download ImageGolden Gate Bridge and Marin Headlands
Golden Gate Bridge and Marin Headlands, California. (140326-14)
Download ImageVolcanic Breccia, Pinnacles NP
23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-44)
Download ImagePinnacles National Park, California
Weathering and erosion controlled by joints in 23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-50t)
Download ImageSoil profile on granitic rock (vertical)
Soil profile developed on granitic rock, coastal grassland, California (140324-56)
Download ImagePinnacles NP, California
ERoded towers of 23.5 Ma volcanic breccia, Pinnacles National Park, California. Note bedding dips gently to right (140325-22)
Download Image140325-24
Erosional remnants of 23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-22)
Download ImageVolcanic breccia, Pinnacles, California (vertical)
Erosional remnant of 23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-22)
Download ImageVolcanic breccia, Pinnacles, California
Erosional remnant of 23.5 Ma volcanic breccia, Pinnacles National Park, California. (140325-21)
Download ImageSoil profile on granitic rock, California
Soil profile developed on granitic rock, coastal grassland, California (140324-61)
Download ImageBreaking wave, California
Breaking wave, California, coastline near Pacifica. (140324-5)
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