Le sous-sol de Caïn est composé de calcaire. Ce calcaire a la propriété de se dissoudre parfois dans l'eau (l'inverse de ce qui se passe dans votre machine à café). En raison des solutions de ce calcaire dans le sous-sol, des affaissements se produisent régulièrement ici. Ces affaissements sont connus sous le nom de dolines. Ainsi, un exemple spectaculaire de doline est apparu le 17 mai 1979. Soudain, il y avait un trou de 10 m de diamètre et 10 m de profondeur.
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Address: Doornik,Tournai, Henegouwen, Belgium
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Source: Herpoel
Copyright: Creative Commons CC BY-SA 4.0
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Discover the most beautiful and popular attractions in the area, carefully bundled in appropriate selections.
Source: Herpoel
Copyright: Creative Commons CC BY-SA 4.0
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