Geology
The Bèrnia mountain range that is found in the pre-benthic mountain range, of the mountain ranges. It is oriented approximately from the west to the east, according to a southwestern northwest direction and a length of about 9 kilometers. Constituted by calcareous Cretaceous in its middle and eocene part in the upper section, the tectonic action has clarified a violent relief, perfectly defined in its morphology of slopes of strong inclination and rocky cusp. A crest crosses the mountain range in almost all its length, with a sustained average height of 900 m., Which has its highest elevation in the Bèrnia, of 1,129 m. above sea level. Two transverse faults limit the mountain range in its length: to the west, through the Tàrbena valley and the high course of the Algar, and, to the east, through the Salat ravine. They say the old name of the saw was Verdiola, due to the greenery of the dense pine forests and the vegetation that covered it.
When we leave the hole we find ourselves on the south face of the Serra Bèrnia there are Altea, the Sierra Gelada, Benidorm, Puig Campana, Ponoig or Aitana, the highest of these, measuring about 1558 m. Also at the exit of the Bèrnia hole we can see on the coast of Altea a place with remains of a volcanic eruption, called Cap Negret, responsible for the fracture of Pangea, 150-140 million years ago. The accumulation of small, loose stonework stones, cantals, pedrises or runars
This mountain is part of the pirate day of Alteas, a type of intrusion resulting from the rise of lighter rocks through denser rocks. The diapers are due to the collision of the African plate with the European. Compression caused the elevation, folding and fracturing of the materials. But there was not only compression. During the course of the orogeny, distal processes were also manifested in which the crust fractured and slowed down facilitating the rise of less dense materials, a process known as diapirism. For 20 million years ago, in this case, as in so many others in the Mediterranean area, the Evaporites of the Triassic will ascend taking advantage of the distensive context in favor of normal faults, such as those that limit the Bèrnia mountain range. These materials lifted and broke the supradyacent cover, encompassing as blocks the dragged fragments or poking them in nearby areas, as it happened with Oltà or Penyó. The saw has suffered folding, when the deformation suffered by the rocks is of plastic type. The materials bend giving us an idea that they forced them to force, but also flaws, that is fragile deformations. The rocks appear torn and, generally, there is a separation between the fractured parts.
