what is a phreatic cave
Phreatic is a term used in hydrology to refer to aquifers, in speleology to refer to cave passages, and in volcanology to refer to eruption type.he term 'phreatic surface' indicates the location where the pore water pressure is under atmospheric conditions (i.e. the pressure head is zero). This surface normally coincides with the water table.
Caving â also traditionally known as spelunking in the United States and Canada and potholing in the United Kingdom and Ireland â is the recreational pastime of exploring wild cave systems. In contrast, speleology is the scientific study of caves and the cave environment. The challenges involved in caving vary according to the cave being visited, but â in addition to the total absence of light beyond the entrance â often include the negotiation of pitches, squeezes, and water hazards ...