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U.S. Geological Survey Open-File Report 2010-1036

Analyses of Gas, Steam and Water Samples Collected in and Around Lassen Volcanic National Park, California, 1975–2002

By Cathy J. Janik and Deborah Bergfeld


Thumbnail of and link to report PDF (13.5 MB)

This report contains physical and chemical data from gas, steam, and water samples collected between July 1975 and September 2002 from locations in and around Lassen Volcanic National Park, California. Data are compiled as tables in Excel spreadsheets and are organized by locale. Most data are keyed to 1 of 107 site codes that are shown on local- and regional-scale maps. Brief descriptions of terminology, sampling, and analytical methods are provided.

  • Report PDF (13.5 MB)
  • Tables folder. This folder contains the five tables as Excel, PDF, comma-separated ASCII (.csv), and tab-separated ASCII (.txt) files (4 MB total)
  • This report is available only on the Web.

For additional information:
Contact CVO
Cascade Volcano Observatory
U.S. Geological Survey
1300 SE Cardinal Court, Building 10, Suite 100
Vancouver, WA 98683-9589

Part of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Janik, C.J., and Bergfeld, Deborah, 2010, Analyses of gas, steam and water samples collected in and around Lassen Volcanic National Park, California, 1975-2002: U.S. Geological Survey Open-File Report, 2010-1036.




Terminology Used in Tables

Collection Methods and Analytical Information


References Cited

five data tables

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