Figure 11. Illustration of Miocene extension of the Caetano caldera. Sections are east-west through the center of the caldera. No vertical exaggeration. (A) Pre-extensional Caetano caldera, modified from Figure 20D of John et al. (2008). (B) Middle Miocene extension on closely spaced, domino-style normal faults, with sedimentation in small half-graben basins. (C) Widely spaced, high-angle normal faulting with broad sedimentary basins.