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Coastal Erosion, Oregon
Erosion of dipping Eocene sedimentary rocks, (Coaledo Formation) along Oregon Coast. Shoreacres State Park, Oregon. (140608-108)
Download ImageHoneycomb weathering in sandstone
The small holes in this rock are called tafoni –and they typically form through the growth of salt crystals that loosen the grains to create small pockets in the rock. Once the pocket forms, more seawater can collect to deposit more salt. It’s an example of a positive feedback loop. These rocks are part of the Eocene Coaledo Formation, Oregon. (140608-91)
Download ImageErosion along dipping strata, Oregon
East-dipping Eocene Coaledo Formation. The resistant beds protrude above ground level higher than the recessive ones. Sunset Bay, Oregon. (140608-95)
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Paddleboarder on Oregon Coast
Fog near Sunset Bay on Oregon Coast. Headland in background. (140608-78)
Download ImageConglomerate of Troutdale Formation, Portland, Oregon
Exposure of Troutdale Formation, deposited by the Ancestral Columbia River, along the Willamette River in downtown Portland, Oregon. (140526-29)
Download ImageHoneycomb Weathering (Tafoni) in sandstone
The small holes in this rock are called tafoni –and they typically form through the growth of salt crystals that loosen the grains to create small pockets in the rock. Once the pocket forms, more seawater can collect to deposit more salt. It’s an example of a positive feedback loop. These rocks are part of the Eocene Coaledo Formation, Oregon. (140608-60)
Download ImageHeadland entrance to Bay, Oregon
Fog near Sunset Bay on Oregon Coast. Headland in background. (140608-56)
Download ImageCalm water in bay, Oregon
Calm water at mouth of Sunset Bay, Oregon Coast (140608-106)
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Granitic dike cutting gneiss, Victoria, BC, Canada
Granitic dike cutting gneiss at Finlayson Point, Victoria, BC, Canada (140524-39)
Download ImageGranitic boulders and high tide, BC, Canada
Granitic boulders and high tide, Vancouver Island, British Columbia, Canada (140525-51)
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Coastal erosion, BC, Canada
Waves attacking headland on the south coast of Vancouver Island, British Columbia, Canada. (140524-64)
Download ImageMigmatitic gneiss and Strait of Juan de Fuca
Migmatitic gneiss and Strait of Juan de Fuca, Victoria, British Columbia, Canada. Olympic Mountains in background. (140524-58)
Download ImageGranitic boulders and high tide, BC, Canada (vertical)
Granitic boulders and high tide, Vancouver Island, British Columbia, Canada (140525-49)
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Glacially polished bedrock, British Columbia
Glacially polished and striated bedrock, overlain by glacial till and pointing out to sea (Strait of Juan de Fuca), Victoria, Vancouver Island, Canada. Olympic Mountains in background. (140524-51)
Download ImageGlacially polished bedrock, British Columbia
Glacially polished and striated bedrock, cfVictoria, Vancouver Island, Canada. (140524-54)
Download ImageGlacially polished bedrock, British Columbia
Glacially polished and striated bedrock, overlain by glacial till and pointing out to sea (Strait of Juan de Fuca), Victoria, Vancouver Island, Canada. (140524-52)
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