Documentation of the Hill of the Vulcanelli - National reserve of Macalube Aragona

Documentation Set in the Natural Reserve "Macalube of Aragona".
A series of little volcanoes of mud describing a lunar landscape.
The Reserve is born to protect a rare geologic phenomenon that, in analogy with the volcanic one, is defined sedimentary volcanism. This type of phenomenon has to be included in that superficial oil manifestations of gaseous type.
The sedimentary volcanism manifests itself in presence of gas submitted to certain pressure and in relationship with clays not consolidated which are intercalated in levels of saltuy water.
The gases of the Macalube are essentialy constituted be methane. These, owning to pressure, escape from the subsoil, through discontinuity fo the ground, dragging with itself clayey sediments and water that, deposing itself in the surface, gives place to a cone of mud, from whose summit, through a crater, the gas escapes.
There is therefore a morphological analogy with the volcanic apparatuses.
periodically the hillock of the Macalube is stunned by explosive eruptions, accompanied by roars, with expulsion of clayey material mixed to gas and water which are cast to notable height because of the pressure of gas accumulated, in the time, below its surface.
The Natural Integral Reserve Macalube of Aragona, is at a distance of about 4 km S.O. from Aragona and 15 k  N. from Agrigento. The area is characterized by sweet forms, constituted by predominantly clayey deposists and ploughed by a thick net of deep valleys, which are periodically crossed by the waters collected by seasonal precipitations.
In this general context strands the hill of the Vulcanelli.
It is a bare moor of grey and whitish colour, from which a series of little volcanoes of mud, tall around the meter, raise almost to remember a lunar landscape.

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