"The purpose of this GIS is to provide the basic data layers and tables required to support the petroleum assessment, data for further exploration and development, and index of known data"--CD-ROM insert.
"The geologic maps and geospatial data in this report show the distribution of bottom types, water depths, and sediment thickness over a large area of seafloor between Nahant to Gloucester, Massachusetts"--DVD-ROM insert.
Relief shown by contours. Includes index map showing boundaries of the geologic map area and of the Nevada test site, 4 colored cross sections, and 3 ancillary maps. Pamphlet includes bibliographical references (p. 39-44). "Interagency Agreement DE-AI08-97NV12033."
Offers links to a wide range of USGS educational and research-oriented earth sciences resources.
Contributor:Geological Survey (U.S.)
Catalog Record - Electronic Resource Available
"This report provides a synthesis compilation of published and unpublished sediment texture and other geologic data about the seafloor from diverse sources ... Examples of maps displaying attributes such as grain size and sediment color"--CD-ROM container insert.
Scale not given. Accompanied by Dept. of the Interior news release: Radar probes geologic past of Yellowstone National Park. Available also through the Library of Congress Web site as a raster image. AACR2
Geological map. Relief shown by contours. Geology "Surveyed in 1889-1891." Topography "Surveyed in 1885-6." LC copy 1 annotated in ink. Copy 2 laminated and mounted on cloth backing. Copy 3 fold-lined and signed in ink by N.H. Darton. Available also through the Library of Congress Web site as a raster image. 3 copies DCP
"Prepared in cooperation with the Montana Bureau of Mines and Geology." Filing title is the same as the map title; map title appears on the Montana west sheet. Segments of map separately titled: Montana west -- Montana east. Includes ancillary "Bibliographic index map of Montana showing sources of geologic data," textual explanation for the index map, and sources of data. "MR-4111." Bibliography.
Scale 1:62,500. "Contour interval 80 feet." "Polyconic projection; 1927 North American datum." Includes location and index maps. Text, illus., geologic structure profile, and glacier location map on verso. AACR2
Title supplied by cataloger. Each map accompanied by text and has different author. Sheets individually titled at top margin, e.g. Configuration of top of Precambrian basement rocks in Kansas Sheets individually numbered, e.g. Kansas Geological Survey, Oil & Gas Investigation 2. Copy incomplete: Set includes investigation no. 2-6, 8-9, 11-23, 25-26.
System requirements: Macintosh, Windows 95/98/NT or Unix computers with ArcInfo 7.1.1 for GIS applications and Adobe Acrobat Reader to view .pdf files. Title from container. Relief shown by contours, spot heights, and shading. Includes bibliographical references (index file).
Contains digital representation of printed map released as USGS Miscellaneous Investigation series map I-2499, in 1995. Purpose is to make original data available digitally. Only modification is labeling of Sunday Lake Fault.
Contains files that provide a digital version of USGS map I-1853-A, Precambrian basement map of the northern micontinent, USA. Intent is solely to make original map available digitally, not to make updates or modifications.