Digital representation of a map showing the thickness and character of Quaternary sediments in the glaciated United States east of the Rocky Mountains /

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Bibliographic Details
Corporate author / creator:	Geological Survey (U.S.)
Imprint:	[Reston, VA] : The Survey ; [Denver, CO] : [For sale by the Survey], 1998.
Description:	1 computer optical disc ; 4 3/4 in.
Language:	English
Series:	U.S. Geological Survey digital data series ; DDS-38 U.S. Geological Survey digital data series ; DDS-38.
Subject:	Geology, Stratigraphic -- Quaternary -- Maps. Geology -- United States -- Maps.
Cartographic data:	Scale [1:1,000,000].
Format:	E-Resource Map U.S. Federal Government Document
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/6519883

Hidden Bibliographic Details
Other authors / contributors:	Packard, Patricia H. Soller, D. R. (David R.)
ISBN:	0607911573
Notes:	Available via Internet from USGS Web site. Address as of 1/25/02: http://pubs.usgs.gov/dds/dds38; current access is available via PURL. System requirements for DOS: 386 or 486-based PC (486 or Pentium processor-based PC recommended); DOS 3.3 or later; 2MB of application RAM available (4MB recommended); 5MB hard disk space. System requirements for Macintosh: Mac system 7.1 or later; 68020 or greater processor; 3.5MB RAM available; Power Macintosh: 5MB RAM available; 12.5MB hard disk space. System requirements for UNIX: See 1README.TXT and 2README.TXT System requirements for Windows: 386, 486 or Pentium processor-based personal computer; Windows 3.1, 95, 3.51 or later; 8MB RAM available (16MB for Windows NT); 10MB hard disk space (5MB for Windows 3.1).
Summary:	Contains vector-based digital geologic maps of surficial deposits in parts of 23 states where continental glaciation occurred during Quaternary. Map compilation was based on about 850 sources.
GPO item no.:	0621-K
Govt.docs classification:	I 19.121:38

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