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Database for geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington

Data Series 1054

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https://doi.org/10.3133/ds1054

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Abstract

This publication releases digital versions of the geologic maps in U.S. Geological Survey Miscellaneous Investigations Map 1950 (USGS I-1950), “Geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington” (Kuntz, Rowley, and MacLeod, 1990) (https://pubs.er.usgs.gov/publication/i1950). The 1980 Mount St. Helens eruptions on May 18, May 25, June 12, July 22, August 7, and October 16–18 produced pyroclastic-flow and related deposits. The distribution and morphology of these deposits, as determined from extensive field studies and examination of vertical aerial photographs, are shown on four maps in I-1950 (maps A–D) on two map sheets. Map A shows the May 18, May 25, and June 12 deposits; map B shows the July 22 deposits; map C shows the August 7 deposits; and map D shows the October 16–18 deposits. No digital geospatial versions of the geologic data were made available at the time of publication of the original maps. This data release consists of attributed vector features, data tables, and the cropped and georeferenced scans from which the features were digitized, in order to enable visualization and analysis of these data in GIS software. This data release enables users to digitally re-create the maps and description of map units of USGS I-1950; map sheet 1 includes text sections (Introduction, Physiography of Mount St. Helens at the time of the 1980 eruptions, Processes of the 1980 eruptions, Deposits of the 1980 eruptions, Limitations of the maps, Preparation of the maps, and References cited) and associated tables and figures that are not included in this data release.

Suggested Citation

Furze, A.J., Bard, J.A., Robinson, J.E., Ramsey, D.W., Kuntz, M.A., Rowley, P.D., MacLoed, N.S., 2017, Database for Geologic Maps of Pyroclastic-Flow and Related Deposits of the 1980 Eruptions of Mount St. Helens, Washington: U.S. Geological Survey Data Series 1054, https://doi.org/10.3133/ds1054.

ISSN: 2327-638X (online)

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Database for geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington
Series title:
Data Series
Series number:
1054
DOI:
10.3133/ds1054
Year Published:
2017
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Volcano Science Center
Description:
Geodatabase; Read Me
Country:
United States
State:
Washington
Other Geospatial:
Mount St. Helens
Online Only (Y/N):
Y