DU3- Underground heritage and European tourist caves.
DU3- Underground heritage and European tourist caves.
10 from P to T terms
- Peloids
- They are made by faecal remains mix with micrite. They are found in protected areas without disturbing agents such as lakes and tidal flats.
- Pit cave
- Doline connected with an underground cave. They form when the cavern ceiling collapses.
- Platelets
- Thin calcite plates formed over small lakes surface. They are on the surface until they are too heavy, and then sink.
- Poljes
- Several dolines joined making an elongated valley which can be flooded setting up a karst lake. Is the largest flat-floored closed karst depression
- Rock dissolution
- The process in which solids (like minerals) are disassociated and the ionic components are dispersed in a liquid (usually water).
- Speleothem
- As a result of carbonate calcium precipitation as calcite or aragonite, it is formed structures inside caves and caverns. Depending on their morphology, they are classified as: stalactites, from ceiling caves, stalagmites, due to dropping of saturated water in carbonate calcium from the last ones, and columns, from stalactite and stalagmite joining.
- Stalactites
- Cylindrical or conical forms that grow from cave ́s ceiling by dripping. When water arrives at the cave and loses CO2, calcite or aragonite precipitation takes place, originating a thin deposit around the stalactite ́s drop
- Stalagmites
- Cylindrical forms with rounded end, that have been formed by an extended dripping from a stalactite or from cave ́s ceiling. They have not got central tube, so they have grown by means of layering.
- Stygophiles
- Inhabit both surface and subterranean aquatic environments.
- Travertines
- Travertine is porous rock formed by calcium carbonate precipitation at the earth’s surface
