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  3. Young tephra sequence 8 km southeast of the former Mount St. Helens summit. Skamania County, Washington. n.d.

Young tephra sequence 8 km southeast of the former Mount St. Helens summit. Skamania County, Washington. n.d.

Summary

Slide description and index card: Young tephra sequence 8 km southeast of the former summit. Pale dacite tephras (sets Y and P) are overlain by tephras of Castle Creek and younger periods that include dark andesite tephras of layers Bh and Bo, pale dacite pumice of layer Bi that is about 1,000 yr old, dark basalt tephras of layer Bu, and white dacite pumice of set W. Skamania County, Washington. n.d. (Photo by R.P. Hoblitt). Published as Figure 5 in U.S. Geological Survey. Professional Paper 1250. 1981.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Hiblitt, Richard P.

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msh_1250_00002_ct.jpg thumbnail 118.36 KB image/jpeg
msh_1250_00002_ct.tif 860.73 KB image/geotiff

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Available in the U.S. Geological Survey Denver Library Photographic Collection, Mount St. Helens Superset album, Photos stacks slides collection area.

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Type Scheme Key
Photo Number https://www.sciencebase.gov/vocab/category/item/identifier msh_1250_00002_ct

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