Data for 2229

Sample identification
Record ID 2229
Sample ID A52716
Geographic location
Quadrangle Petersburg
Latitude 56.518333
Longitude -132.059998
Processing information
Dating method K-Ar
Comment Questionable age calculation
Reference Douglass et al, 1989
Sample characteristics
Rock type granite
Mineral dated biotite
Analytic result
Age (my) 16.3