Tools
National geochronological and natural radioelement data bases
- Title
- National geochronological and natural radioelement data bases [electronic resource].
- Format
- Online Resource CD-ROM
- Published
- [Reston, Va.?] : Dept. of Interior, U.S. Geological Survey ; [Denver, Colo. : For sale by USGS Distribution Branch], 1995.
- Description
- 1 computer laser optical disk : col. ; 4 3/4 in.
- Operating require
- System requirements: IBM or compatible personal computer; 640 kb RAM; MS or PC-DOS version 5.0 or later; SVGA graphics card (640x480); SGVA color monitor; Microsoft MSCDEX version 2.1 or later; CD-ROM drive with ISO 9660 software driver; hard disk drive.
- Series
- U.S. Geological Survey digital data series ; DDS-14
- Other contributors
- Zartman, Robert E. Bush, Charles A. Abston, C. C. (Carl C.) Geological Survey (U.S.)
- Other title
- National geochronological data base Natural radioelement data base
- Notes
- Title from disk. Shipping list no.: 95-006-E.
- Contents
-
- A. National geochronological data base / by Robert E. Zartman, Charles A. Bush, and Carl Abston
- B. Natural radioelement data base / by Charles A. Bush and Carl Abston.
- Summary
- The NGDB contains more than 30,000 individual published ages of rocks and minerals in the United States; while the NRDB contains analyses of the natural radioelements from more than 8500 whole rocks.
- Subject headings
- Geological time--Databases. Radioactive substances--Databases.