Abstract: YukonAge 2004 is an MS-Access based database containing all reported non-proprietary isotopic age determinations for bedrock units within the Yukon Territory. This is the 3rd in a series of YukonAge compilations. It contains 1566 age determinations from 1166 rock samples, summarizing 185 published articles, theses or unpublished reports. The data is fully relational, and may be queried by the user on the basis absolute age (in Ma), location (NTS mapsheet, terrane polygon, or decimal lat-long, as specified by the user) or source (e.g. author, journal title, etc.). The product is not stand-alone; the end user must install Microsoft Access, version 2000 or XP (2002).
The database consists of 3 linked tables: 1) a rock table, which contains one record for each sample dated; 2) an age table, containing one record for each age determination reported; and 3) a sources table, containing one record for each report containing ages.
Each entry includes the following information
1. Internal database reference number(s);
2. Age and error (in Ma); interpretation (meaning) of age;
3. Material dated, isotopic system used, and laboratory in which the sample was dated;
5. The rock type and geological unit (where this is known);
6. Reliability rating and comments;
7. Reference(s); and
8. Sample location (NTS map area, latitude/longitude, UTM zone/easting/northing).

Authors: Breitsprecher, K. and Mortensen, J.K. (comps.)

Keywords: geochronology

NTS Mapsheet(s): Yukon Wide

Citation: Breitsprecher, K. and Mortensen, J.K. (comps.), 2004. YukonAge 2004: A database of isotopic age determinations for rock units from Yukon Territory. Yukon Geological Survey, CD-ROM.