_ ~ jSIN CO I s.E. GEORGIA * EMBAYMENT ALABAMA GEO GIA WALTON EXPLANATION Synclinal axis + Anticlinal axis HARDEE C, S )U ,e IApproximate basin limits SUT LFL ID BASIN 0 25 50 MILES COLLIER 0 40 80 KILOMETERS Figure 12. Florida basement pre-Middle Jurassic tectonic features. 36