HERESANU , Vasile

The Prehistoric Cave at Azé (France) was divided in two parts by calcite flowstone. This isolated the innermost parts of the cave from the entrance, which remained connected to the surface. Since the closure, bats have not been able to access the cave beyond the flowstone blockage. They have been present only in the cave entrance. The...

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The condensation-corrosion process occurs when airflow cools at the contact with colder cave walls. Condensed water becomes aggressive for soluble rocks and corrodes the walls. This process is particularly active close to cave entrances in high thermal gradient zones where external air enters caves. Condensation appears to be important where...

The decay of bat guano deposits in caves produces mineral accumulations, mainly phosphates and secondary sulfates. Chameau Cave, Eastern Morocco, is located in the semi-arid Bni Snassen Mountains. It is composed of semi-active and dry passages, and is featured by strong condensation-corrosion on the walls, presence of fluvial sediments, and old...

The Toirano karst system is located in the Ligurian Alps, in the dolostones of Middle Triassic age, around 4.5 km inland from the coast (Borghetto Santo Spirito). It comprises different caves, among which the most important are, from the higher altitudes to the Varatella brook below, Colombo Cave (247 m asl), Upper Santa Lucia (215 m asl),...