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A Geoscience Digital Image Library

3011.jpg
TitleDike feeding into a columnar jointed andesitic lava flow
DescriptionDike feeding into a columnar jointed andesitic lava flow below Llao Rock dome in the NW wall of 6,800-year old Crater Lake caldera (view from boat on the lake). The basal brown formation beneath the andesitic flow is a 400,000 year-old shield volcano in cross section, which preceded the modern Mazama stratocone atop which the Crater Lake formed.
LocationUSA ▹ Oregon. Crater Lake.
PhotographerRichard Hazlett. 1995.
CollectionKeck Structural Geology Slide Set #RH1.
Key wordsCrater Lake, Oregon, dike, caldera
Tech details516 KB. Vista.
GeoDIL number3011
CopyrightRichard Hazlett