are in accord with an archaeologically estimated age for a drowned prehistoric construction at a depth of 1 m below current sea level in a cave from the same area. Speleothem δ13C and δ18O and chemical composition of cave pools provide supportive evidence
that phreatic overgrowths on speleothems (POS) reflect mixing between seawater and brackish water table.
Argentina ; Australia ; Biogenic process ; Biogeomorphology ; Cave ; Electron microscope ; Europe ; Geomorphology ; Granite ; Micro-organism ; Mineralogy ; Speleothem ; Weathering ; World
Les AA. font une synthèse des données existantes sur des spéléothèmes de milieux granitiques variés, étudiés sous différents régimes climatiques, en Europe, en Argentine et en Australie. Ils ont classé les spéléothèmes selon leurs compostions
. These features are composed entirely of pure white salt and have been encountered in a limited area on the salt crust floor in the famous Valle de la Luna (moon valley). The salt blisters and rims are very similar to homonymous (sam-name) speleothems and form