http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Based on a talk given at the U.S. Geological Survey, Denver, on 29 April 1999, about work to edit, document, distribute, and interpret about a million line-kilometers of aeromagnetic data in Alaska. The images are from a series of talks, reports and maps created between 1992 and 1999.
Mode of access: Internet from the USGS web site. Address as of 4/17/00: http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-99-0418/; current access is available via PURL.
U.S. Geological Survey open-file report ; 99-418