Conjugate Normal faults in siltstone
Conjugate normal faults offsetting laminated siltstone of the Miocene Monterey Formation, Santa Barbara, California
Download ImageSalt evaporators, San Francisco Bay, CA
Aerial view of salt evaporators. San Francisco Bay National Wildlife Refuge, Fremont, California (240808-60)
Download ImageTriassic Lingula brachiopods
Triassic lingula brachiopod fossils in limestone of the Dinwoody Formation, SW Montana (240726-5)
Download ImageGlacial trough, Glacier NP, Montana
St. Mary Lake, which occupies a glacial trough, Glacier National Park, Montana (240719-22)
Download ImageProterozoic armored mudballs, Montana
Armored mudballs in Proterozoic Grinnell Formation, part of the Belt Supergroup of Glacier National Park, Montana (240718-7)
Download ImageProterozoic armored mudballs, Montana
Armored mudballs in Proterozoic Grinnell Formation, part of the Belt Supergroup of Glacier National Park, Montana (240718-6)
Download ImageMississippian coral in dolomite
Mississippian-age coral in Castle Reef Dolomite, Lewis and Clark National Forest, Montana (240717-7)
Download ImagePediment and bedrock, SW Montana
Tilted sandstone bedrock and overlying pediment surface, SW Montana (240710-1)
Download Image240626-50
Sigma-type asymmetric granitic porphyroclasts in ductile shear zone. Bitterroot mylonite front, Montana (240626-49)
Download Image240626-49
Sigma-type asymmetric granitic porphyroclasts in ductile shear zone. Bitterroot mylonite front, Montana (240626-49)
Download Image240109-16
River deposits of the Miocene Punchbowl Formation, Devils Punchbowl County Park, California (240109-16)
Download ImageSmall-scale normal faults in sandstone, Oregon
Small-scale normal faults in sandstone of Eocene Coaledo Formation, Oregon (230825-18)
Download ImageDrowned trees in intertidal zone, Oregon (vertical)
1200 year old Sitka Spruce drowned by earthquake-induced coastal subsidence, Sunset Bay, Oregon (240609-57)
Download ImageDrowned trees in intertidal zone, Oregon
1200 year old Sitka Spruce drowned by earthquake-induced coastal subsidence, Sunset Bay, Oregon (240609-57)
Download ImageWave-cut bench and uplifted terrace, Oregon
Angular unconformity between tilted Eocene Coaledo Formation and uplifted Pleistocene deposits of a marine terrace. Sunset Bay, Oregon (240609-39)
Download ImageAlteration along fractures, Oregon (vertical)
Alteration along fractures in cross-bedded sandstone of the Eocene Coaledo Formation, Oregon (240609-36)
Download ImageCretaceous turbidites in Oregon sea cliffs
Cretaceous turbidites of Fulmar subterrane of the Franciscan Complex, Oregon (240329-38)
Download ImageTurbidites in Oregon sea cliffs (vertical)
Cretaceous turbidites of Fulmar subterrane of the Franciscan Complex, Oregon (240329-37)
Download ImageChilled margin on basalt pillow, Oregon
Chilled margin on basaltic pillow. Siletzia accreted terrane, Oregon (240309-13)
Download ImageUplifted marine terrace, Oregon
Breaking wave and uplifted marine terrace at Shore Acres State Park, Oregon (240225-72)
Download ImageBreaking wave and sea stack, Oregon
Breaking wave and sea stack at Shore Acres State Park, Oregon (240225-46)
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