Saint-Marcel Cave, Bidon, Ardèche, Auvergne-Rhône-Alpes, Francei
|Regional Level Types|
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Latitude & Longitude (WGS84):
44° 19' 37'' North , 4° 32' 30'' East
Latitude & Longitude (decimal):
Köppen climate type:
Grotte de Saint-Marcel, Bidon, Auvergne-Rhône-Alpes, France
The cave opens on the left bank of the scenic ~200 m-deep Ardèche Canyon that cuts through a Cretaceous limestone plateau. The cave is 57 km long, including 18 km of underwater passages, has a total relief of 238 m (-101/+137), and consists mainly of large horizontal passages disposed in levels. The cave has drained the plateau and sinkholes along the Ardèche Gorge since Miocene times. The cave was used since Middle Paleolithic; today part of the cave is opened for tourism.
A colony of about 1,000 individuals of Rhinolophus euryale was present in the 1950s. In the Galerie des Chauves-souris (“Bats Passage”),
guano on the surface yielded a 14C age of 1916 BC. The guano accumulations
(maximum thickness of 50 cm) extend along this passage, covering a surface of ~15 m2. It occurs as black sticky material, poorly layered, resting on older clay deposits.
Regions containing this locality
|Eurasian Plate||Tectonic Plate|
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
1 valid mineral.
Rock Types Recorded
Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List TypeAlphabetical List Tree Diagram
Detailed Mineral List:
| ⓘ Gypsum|
Formula: CaSO4 · 2H2O
Reference: Audra, P., De Waele, J., Bentaleb, I., Chroňáková, A., Krištůfek, V., D’Angeli, I. M., Carbone, C., Madonia, G., Vattano, M., Scopelliti, G., Cailhol, D., Vanara, N., Temovski, M., Bigot, J.-Y., Nobécourt, J.-C., Galli, E., Rull, F., and Sanz-Arranz, A. (2019) Guano-related phosphate-rich minerals in European caves. International Journal of Speleology, 48, 1, 75-105.
List of minerals arranged by Strunz 10th Edition classification
|Group 7 - Sulphates, Chromates, Molybdates and Tungstates|
|ⓘ||Gypsum||7.CD.40||CaSO4 · 2H2O|
List of minerals arranged by Dana 8th Edition classification
|Group 29 - HYDRATED ACID AND NORMAL SULFATES|
|ⓘ||Gypsum||22.214.171.124||CaSO4 · 2H2O|
List of minerals for each chemical element
|H||ⓘ Gypsum||CaSO4 · 2H2O|
|O||ⓘ Gypsum||CaSO4 · 2H2O|
|S||ⓘ Gypsum||CaSO4 · 2H2O|
|Ca||ⓘ Gypsum||CaSO4 · 2H2O|
Sort byYear (asc) Year (desc) Author (A-Z) Author (Z-A)
Audra, P., De Waele, J., Bentaleb, I., Chroňáková, A., Krištůfek, V., D’Angeli, I. M., Carbone, C., Madonia, G., Vattano, M., Scopelliti, G., Cailhol, D., Vanara, N., Temovski, M., Bigot, J.-Y., Nobécourt, J.-C., Galli, E., Rull, F., and Sanz-Arranz, A. (2019) Guano-related phosphate-rich minerals in European caves. International Journal of Speleology, 48, 1, 75-105.
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