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Crystal settling in Sierran granodiorite
Crystal settling in granitic rock of Sierra Nevada, California (181020-67)
Download ImageCrystal settling in Sierran granodiorite
Crystal settling in granitic rock of Sierra Nevada, California (181020-65)
Download ImageCrystal settling in Sierran granodiorite
Crystal settling in granitic rock of Sierra Nevada, California (181020-64)
Download ImageAplite dike in granodiorite, California
Aplite dike in granitic rock, Sierra Nevada, California. (181020-62)
Download ImageAplite dike in granodiorite, California
Aplite dike in granitic rock, Sierra Nevada, California. (181020-59)
Download ImageAplite dike in granodiorite, California
Aplite dike in granitic rock, Sierra Nevada, California. (181020-58)
Download ImageCross-cutting relations (vertical)
Cross-cutting relations: dike cuttting mafic enclave in granodiorite, Sierra Nevada (181020-50)
Download ImageCross-cutting relations (vertical)
Cross-cutting relations: dikes cuttting mafic enclaves in granodiorite, Sierra Nevada (181020-50)
Download ImageCross-cutting relations
Cross-cutting relations: dikes cuttting mafic enclaves in granodiorite, Sierra Nevada (181020-50)
Download ImagePorphyritic Steens Basalt, Oregon
Large plagioclase phenocrysts in basalt of Steens Mountain (part of the Columbia River Basalt Group -CRBG- Oregon (181017-43)
Download ImageGlacial Valley, Steens Mountain, Oregon
Glacially carved, U-shaped valley into flows of the Steens Basalt, Big Indian Creek, Steens Mountain, Oregon (181017-23
Download ImageBase-surge deposit in Rattlesnake Tuff, Oregon
Base-surge deposit in Rattlesnake Ash Flow Tuff, Oregon (181017-9)
Download ImageSpherulites in tuff, Oregon (vertical)
Spherulites in Rattlesnake Ash Flow Tuff, Oregon (181017-3)
Download ImageRattlesnake Ash Flow Tuff, Oregon
Rattlesnake Ash Flow Tuff with stratified base-surge deposit at the bottom, Oregon (181017-1)
Download ImageCliffs of Ash Flow Tuff, Smith Rocks, Oregon
Cliffs of Ash Flow Tuff and Crooked River, Smith Rock State Park, Oregon. Cascade Volcanoes in background. (181016-57) pyroclastic
Download ImageRattlesnake Ash Flow Tuff, Oregon
Tuff and rhyolite dike at Smith Rock State Park, Oregon. (181016-32) pyroclastic
Download ImageCliffs of Ash Flow Tuff, Oregon (vertical)
Cliffs of Ash Flow Tuff, Smith Rock State Park, Oregon. (181015-22) pyroclastic
Download ImageCliffs of Ash Flow Tuff, Oregon
Cliffs of Ash Flow Tuff, Smith Rock State Park, Oregon (181015-20)
Download ImageEstuary: Siuslaw River, Oregon
Aerial view of Siuslaw River entering the Pacific Ocean near Florence, Oregon. Note the coastal dunes.
Download Imagegranite with minerals identified (pan)
granite close-up with biotite, quartz, orthoclase, and plagioclase feldspar minerals identified (pan) IP18-1012ce
Download ImageDuctile shear zone in gneiss (pan)
Ductile shear zone in gneiss, annotated on right (IP18-0982e)
Download Image
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