It is one of the so-called peri-Adriatic platforms, which are comparable to the Bahama Banks in their carbonate facies, shape, size, and subsidence rate and, also, in the internal architecture.
A small outcrop of Upper Triassic evaporite (Anidriti di Burano) and black limestone is present on the northern seashore (Punta delle Pietre Nere).
The outcropping succession comprises Upper Jurassic to Eocene carbonate rocks representing platform-to-basin settings.
[12][15][20] Minor scattered outcrops of Miocene sediments, unconformably overlying the Cretaceous and Jurassic platform, are present in many parts of the promontory, mainly along the lowland border zones (Cagnano Varano, Sannicandro, Apricena, Manfredonia), and also one site inland near San Giovanni Rotondo.
[21] On the basis of physical stratigraphic relationships and of the presence of evident bounding surfaces, the Jurassic-Eocene succession can be subdivided into six major packages of sediments, which can be classified as second-order depositional sequences.