Published in Scientific Papers. Series A. Agronomy, Vol. LX
Written by Alexandra RADU, Marian MUȘAT
Pacle Valley basin is located in the west of Buzau Slănic, it is bordered by sinuous its turn to the north basin in the area of origin. It continues with the corresponding elementary surface haze hill where the mud volcanoes. These formations are created by natural gas from more than 3,000 meters deep, passing through a clay layer in combination with the groundwater. Gas pushing toward the surface water mixed with clay. The sludge formed by them resurfaces in those places, dry in contact with air, forming structures similar to conical volcanoes. This area was declared a natural monument since 1924, the only place in Europe where mud volcanoes can be seen, similar phenomena recorded only in Siberia and Australia.
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