Lithologically are mostly made of highly compacted and well stratified, with gastropods and manganese oxides oquerosas white limestones, among which are common collations white margocalizas. The view power approaches 50 m, with layers of 5-50 cm thick well defined dipping northward between 30° and 60 °. This appears fractured rock mass in several families of joints with N-S and E-W directions about
subvertical.