Coral reef developed in HST on top of deep shelf limestone sequence. 
Buried coral reef also inferred for between Ibi and Carrasqueta.

coralgal buildups interfingering with miliolid-rotaliid limestones. The top shows a thickening-up bedding pattern and consists of packstones and grainstones with exclusively rotaliids and some coral debris. The unit of pebbly rotaliid limestones with coralgal reefs is considered to represent a highstand prograding barrier with fore-reef, reef and interreef subenvironments.