Tappan Spring
Appearance
Tappan Spring is a spring located in Tappan Spring Canyon in Coconino County, Arizona.[1] Basalt rocks of Tappan age are named after flows from cinder cones north of the spring. Tappan-age rocks are from the period 0.2 to 0.7 myr.[2]
References
- ^ U.S. Geological Survey Geographic Names Information System: Tappan Spring
- ^ "Volcanic rocks of the eastern and northern parts of the San Francisco volcanic field, Arizona". Journal of Research of the U.S. Geological Survey. 4 (5): 549–560. 1976.
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