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Marl Caves in Catalonia

Marl is a mixed rock of limestone and clay, soft and not very resistant, which tends to produce small cavities with walls that crumble easily. It’s not a terrain for long explorations, but it is a useful indicator for understanding the transition between purely calcareous zones and more clayey zones within the same county.

31 cavitats (14 coves i 17 avencs) with Marl lithology are part of the catalogue. Most are found in Santa Maria de Besora, Montferri and Corbera de Llobregat. Bufador Nº8 de Beví, amb 400 m de recorregut.

The surveyed length of the caves with this data ranges from 5 to 400 metres. The depth ranges from 1 to 52 metres. Each entry includes exact location, coordinates and, where available, photographs and survey maps, with a downloadable GPX track. The whole list on this page can also be exported as CSV or JSON.

La litologia Margues és una roca sedimentària mixta de calcària i argila, tova i poc resistent, que sol donar cavitats petites i inestables.

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