200.0FLORIDA, r= .93, n=14 GEORGIA, r= .88, n=9 MOROCCO, r=.80, n=16 SURINAM, r=.62, n=6 160.0- lEE, r=-.68, n=10o IlED, r=.91, n=7
E 120.00
0 N1
S 80.0HFQ es
40.0- LTQ
I I I I I
50.0 100.0 150.0 200.0 250.0 Zr (ppm)
Figure 10. Till/100 (ppm) plotted versus Zr (ppm) showing Florida tholeiitic trend. Linear regressions through data from Surinam, Morocco, Georgia (dikes only) and northeastern United States (lED and lEE, see text) are also shown. Data referenced in text. Solid diamonds denote
average magma compositions from Weigand and Ragland (1970).
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