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Aerial view from the west over the crater rim from a helicopter taking geologists to collect samples and measure temperatures inside the crater. Mount St. Helens, Skamania County, Washington. 1980.

Dates

Date Taken
1980-06-29

Summary

Slide description and index card: Aerial photographs of the lava dome that extruded into the crater of Mount St. Helens during the latter part of June 1980.The volcano's dacite lava has a pasty consistency when it is molten, and it tends to pile up rather than to flow laterally. This dome, which was largely destroyed in a subsequent eruption on July 22, 1980, was, at this stage, about 1,200 feet across and 200 feet high. Its rough, shattered appearance resulted mainly from the expansion and shattering of the solidified outer crust as more molten lava was forced upward by the great pressure in the magma chamber underlying the volcano. B, View from the west over the crater rim from a helicopter taking geologists to collect samples and [...]

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Friedman, Jules D.

Attached Files

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msh_1249_00056_ct.jpg thumbnail 39.75 KB image/jpeg
msh_1249_00056_ct.tif 738.52 KB image/geotiff

Material Request Instructions

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

Rights

This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html

Additional Information

Identifiers

Type Scheme Key
Photo Number https://www.sciencebase.gov/vocab/category/item/identifier msh_1249_00056_ct

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