Table 4: Isotopic Ratios of Lavas from the McNutt Volcanic Complex.
 
X121
X63
X105
X88
X49
X101
X118
X19
X40
X123
X16
X81
X87
X89
87Sr/86Sr 0.703607 0.703596 0.703513 0.703580 0.703530 0.703864 0.704138 0.704411 0.704393 0.703876 0.704553 0.706675 0.705852 0.704720
143Nd/144Nd 0.512870 0.512825 0.512883 0.512851 0.512846 0.512679 0.512630 0.512396 0.512366 0.512695 0.512473 0.512305 0.512091 0.512381
206Pb/204Pb
19.363
19.416
19.517
19.612
19.509
19.235
19.053
18.439
18.787
19.520
18.640
19.350
17.907
19.002
207Pb/204Pb
15.632
15.656
15.679
15.672
15.656
15.677
15.672
15.709
15.723
15.708
15.714
15.899
15.755
15.740
208Pb/204Pb
39.489
39.445
39.574
39.601
39.466
39.732
39.344
40.138
39.591
39.804
40.234
41.055
41.257
39.749
d18O
+6.08
+5.57
+5.32
+6.08
+6.35
+6.01
+6.25
+5.27
+5.95
+6.97
+7.53
+7.29
+6.99
+5.58