The outcropping succession comprises Upper Jurassic to Eocene carbonate rocks representing platform-to-basin settings. 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.
The outcropping sequence consists of Upper Jurassic to Eocene carbonate rocks in platform-to-basin settings. There are also scattered Miocene sediments present in various parts of the promontory, particularly along the lowland border areas (Cagnano Varano, Sannicandro, Apricena, Manfredonia), and one site inland near San Giovanni Rotondo.