Geoturism Balearic Islands

At Munt Petit there is a small Middle Jurassic tectonic, eustatic or antropical processes</span></p></div>">outcrop comprising layered Sedimentary rock whose main component is calcium carbonate (CaCO3). Its origin can be chemical, organic or detritic.</p><p><br></p></div>">limestone with intercalations of marled levels. 

The most interesting thing about this tectonic, eustatic or antropical processes</span></p></div>">outcrop is the observation of the different stratification surfaces that are inclined. A stratification surface is a well-defined level that separates successive layers of sedimentary rocks. Each surface is a rupture or break in sedimentation. 

The inclination of the layers follows the slope, which favours the production of planar sliding.

From this same point one can see the Es Cavallet pools that form part of Ses Salines of Eivissa.

The Ses Salines wetlands of Eivissa comprise a series of lagoons edged by beaches and islets. These lagoons have been closed off and practically isolated from the sea due to the creation of littoral barriers. The barriers were formed by the variations of the sea level during the Quaternary period. 

The only connections of the pools with the sea are in the east sector (the Es Cavallet area) and the west sector (Es Codolar area). Towards the north, the Eivissa mountain ranges border the salt marshes, while to the south and south-east the Penya Roja and Corb Marí hills appear. 

These hills, throughout the geological history of Eivissa and depending on the variations to the sea level, have remained, at times, joined to the rest of Eivissa by a littoral cordon or they have become part of the archipelago of islands that join Eivissa and Formentera.

They are currently joined to Eivissa via an alluvial fan

In the Munt Gros area, it is almost always possible to see a mountain of white salt extracted by evaporation of the pools and the precipitation of the evaporites.

Evaporites are essentially chemical sedimentary rocks that are mainly formed by the precipitation of dissolved salts in very concentrated water (brine pools). These are single mineral rocks, in other words, they are formed by only one mineral component. 

The most common groups of evaporites are chlorides (common salt and sylvite) and sulfates (chalk and anhydrite). They are often associated with carbonates, clays, etc.

These rocks typically have a crystalline texture, are not porous, with a limited mineral composition, lack of fossils (normally), their taste, high solubility, etc. Thanks to the latter characteristic, a fixed sequence of precipitation is set up. The most soluble minerals are the last to precipitate.