The Recent sediments of south Bonaire are filling a depression in the Pleistocene surface. The general sedimentation and diagenetic history are as follows: (a) deposition of a Halimeda grainstone; (b) deposition of a lithoclastic sediment with clay beds and cementation of this sediment to form a lacy carbonate crust; (c) deposition of an intertidal pelleted lime mud; and (d) bedded gypsum deposition and incipient dolomitization of the pelleted lime mud. Based on the similarity between the texture of Recent gypsum and anhydrite and subsurface anhydrite, it is hypothesized that subsurface anhydrite represents anhydrite formed near the surface or anhydrite replacing gypsum formed near the surface.

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