The exhalative field, strictly elongated north-south, from the depths of 90-100 m is followed down along the side of the building and then through the floor with marine volcanic, with an overall probably more than 3 km. The fumaroles have a reach really very high and give rise to violent eruptions gaseous form of chains of bubbles, which rise to several tens of meters forming dense and wide (20-30 m) columns; higher columns fray and thin, while remaining perfectly recognizable to the surface, where you can see large bubbles still on the rise. This is not the usual fumarolic exhalations; seem continuous steam of the geysers, expelled under great pressure.
We used (Sanfilippo, Lanzafame, 2006) a camera mounted in a Remote Operated Vehicle (ROV) to study the fumarolic field in the floor with marine volcanic and we followed him to the north, to a depth of 173 m, without reaching the northern limit . The study of the seabed outside the northern base of the cone, showed that they are made from mobile sediments, sandy-muddy, whitish and organogenic nature. There are also isolated blocks, the number and the size of which increases in the vicinity of the cone, to indicate their origin gravitational at the expense of the slopes of the building. The sea floor is largely covered by a veil of black sand of volcanic origin, composed of material ialoclastico, as shown by the analysis of samples collected during the background investigation. The volcanic sands, with evidence, have been observed to hold the blocks and also sessile organisms living. The depths of the whole area examined (about 1 sq. km) are littered with depression, funnel-shaped, metric sizes (diameter and depth), often organized along north-south orientations, some of which are still home to very weak fumaroles. These findings, in reference to what is known even about the fields exhalative land, indicate that small craters are now sold out of the product flow fumarole high energy which, when they were in business, digging troughs removing the finest materials , bringing them up and dispersing them in the area. The observation of granules blacks, of volcanic origin, of living organisms confirms unequivocally that the phenomenon is still in place in the adjacent volcanic areas.
We used (Sanfilippo, Lanzafame, 2006) a camera mounted in a Remote Operated Vehicle (ROV) to study the fumarolic field in the floor with marine volcanic and we followed him to the north, to a depth of 173 m, without reaching the northern limit . The study of the seabed outside the northern base of the cone, showed that they are made from mobile sediments, sandy-muddy, whitish and organogenic nature. There are also isolated blocks, the number and the size of which increases in the vicinity of the cone, to indicate their origin gravitational at the expense of the slopes of the building. The sea floor is largely covered by a veil of black sand of volcanic origin, composed of material ialoclastico, as shown by the analysis of samples collected during the background investigation. The volcanic sands, with evidence, have been observed to hold the blocks and also sessile organisms living. The depths of the whole area examined (about 1 sq. km) are littered with depression, funnel-shaped, metric sizes (diameter and depth), often organized along north-south orientations, some of which are still home to very weak fumaroles. These findings, in reference to what is known even about the fields exhalative land, indicate that small craters are now sold out of the product flow fumarole high energy which, when they were in business, digging troughs removing the finest materials , bringing them up and dispersing them in the area. The observation of granules blacks, of volcanic origin, of living organisms confirms unequivocally that the phenomenon is still in place in the adjacent volcanic areas.
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