Sajama Core 1 (1997)           3rd order exp
          Core     Initial Age Model Age   Coeff. for 3rd order
          Depth, z kyr BP '50  kyr BP '50  exponential age model
Tritium      25.20   -0.014   -0.014          (kyr BP '97)
Layer Counts 41.50    0.053    0.050     b[0] =    -2.4116
Huaynaputina 64.80    0.350    0.360     b[1] =     0.0452
C-14*        78.30    0.970    0.997     b[2] =  -3.85E-04
C-14         92.10    3.390    3.292     b[3] =  2.616E-06
d18Oatm     101.20    9.100    8.359

Model Age = 10^(b[0]+b[1]z+b[2]z^2+b[3]z^3)-.047
valid to:   102.56    9.726

From here down, dates are treated as "absolute,"
with linear interpolation used in between

d18Oatm     103.80   10.300

GISP II d18Oice matchpoints
        1   105.45   11.575
        2   106.95   11.925
        3   108.45   12.575
        4   109.05   12.775
        5   109.85   13.125
        6   111.05   14.075
        7   113.05   14.725
        8   114.15   15.125
        9   114.55   15.475
       10   115.65   16.025
       11   116.45   16.525
       12   117.85   17.025
       13   118.75   17.975
       14   123.25   21.625
 
C-14*       130.80   24.487
Bottom      132.35   25.075
 
* used average of two dates