02090nam a2200397Ia 4500 197194 BIBL 20200624062620.0 950222s1995 vaun f m f eng d (OCoLC)32033586 GIS GIS GPO CUV GPO PUXA 0621-K I 19.121:14 QE508 .G3958 1995 Geological Survey (U.S.) Local 227708 National geochronological and natural radioelement data bases [computer file] U.S. Department of the Interior, U.S. Geological Survey. National geochronological data base Natural radioelement data base Computer data and program. [Reston, Va.?] The Survey [Denver, Colo. For sale by USGS Distribution Branch] 1995. 1 computer laser optical disc col. 4 3/4 in. U.S. Geological Survey digital data series DDS-14 Local 182290 Title from container insert. Shipping list no.: 95-006-E. Disk Characteristics: CD-ROM 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. 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. 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. Geological time Databases. Local 101961 CD-ROM Fed. Doc. Local 71074 Radioactive substances Databases. Local 156453 Zartman, Robert E. Local 191819 Abston, C. C. (Carl C.) Local 48590 Bush, Charles A. Local 67181 149157 149157 0 0 0 551_701000000000000_G345_CDFED 0 evref 186204 10 10 9 2016-05-27 288538 0 551.701 G345 CD-FED 80000001825739 2016-05-27 00:00:00 1995 r:197194 z:NCC:D 9