Data for 688

Sample identification
Record ID 688
Sample ID 77AMs001
Geographic location
Quadrangle Chignik
Latitude 56.224998
Longitude -158.475006
Processing information
Dating method K-Ar
Comment Propylitically altered dike, mean of 2 determinations
Reference Wilson, 1978, 1980, Wilson et al, 1981, Wilson and Cox, 1983
Sample characteristics
Rock type andesite
Mineral dated hornblende
Analytic result
Age (my) 27.1