Caves and potholes in Marl terrain
Marls are a sedimentary rock intermediate between clay and limestone, unfavourable for large cavities. The catalogue lists 31 cavities in marls: 17 pits and 14 caves, with 1061 m of total passage and a maximum depth of 52 m.
There are 31 catalogued cavities in Marl, including 17 potholes and 14 caves. The longest is Bufador Nº8 de Beví (400m).
Length adds each cave once (a system counts once), and depth is that of the deepest cave, canyons excluded.
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Marls are a sedimentary rock intermediate between clay and limestone. They are unfavourable for large cavities and often act as an impermeable layer that conditions the drainage of the neighbouring karst.
The catalogue lists 31 cavities developed in marls: 17 pits and 14 caves. Together they total 1061 m of passage and reach a maximum depth of 52 m. The longest cavity is the Bufador Nº8 de Beví, with 400 m, which is also the deepest, with 52 m. Other notable cavities are the Bufador Nº3 de Beví, with 120 m, and the Avenc del Fang, with 72 m.
Among the deepest cavities are the Bufador Nº8 de Beví, with 52 m; the Avenc del Fang, with 29 m; the Bufador Nº3 de Beví, with 18 m; the Forat de la Terra Blanca, with 14 m, explored by the GEB on the eleventh of December of 1993; and the Avenc de la Rendisclera, with 12 m.
Map
Autonomous communities
The figures of these places do not add up to the total: a cave can be in more than one place, or in none when its location has no lower level.
The 20 longest
- 1Bufador Nº8 de BevíSanta Maria de Besora, Barcelona400 m
- 2Bufador Nº3 de BevíSanta Maria de Besora, Barcelona120 m
- 3Avenc del FangSanta Maria de Besora, Barcelona72 m
- 4Bufador Nº16 de BevíSanta Maria de Besora, Barcelona52 m
- 5Avenc de la RendiscleraCamarasa, Lleida40 m
- 6Canya de l'óssaColl de Nargó, Lleida34 m
- 7Forat del PurgatoriVidrà, Girona31 m
- 8Avencs del Tim I dels TigresSanta Maria de Besora, Barcelona30 m
- 9Cova del BaróSanta Maria de Besora, Barcelona30 m
- 10Forat de la Terra BlancaAmer, Girona28 m
- 11Avenc de BesoraSanta Maria de Besora, Barcelona27 m
- 12Cova del SaulóMontferri, Tarragona27 m
- 13Bufador Nº11 de BevíSanta Maria de Besora, Barcelona17 m
- 14Bufador Nº5 de BevíSanta Maria de Besora, Barcelona15 m
- 15Bufador Nº7 de BevíSanta Maria de Besora, Barcelona15 m
- 16Avenc BlancSanta Maria de Besora, Barcelona14 m
- 17Bufador Nº2 de BevíSanta Maria de Besora, Barcelona13 m
- 18Bufador Nº4 de BevíSanta Maria de Besora, Barcelona12 m
- 19Avenc del VentSanta Maria de Besora, Barcelona11 m
- 20Bufador Nº13 de BevíSanta Maria de Besora, Barcelona11 m
The 20 deepest
- 1Bufador Nº8 de BevíSanta Maria de Besora, Barcelona52 m
- 2Avenc del FangSanta Maria de Besora, Barcelona29 m
- 3Bufador Nº3 de BevíSanta Maria de Besora, Barcelona18 m
- 4Forat de la Terra BlancaAmer, Girona14 m
- 5Avenc de la RendiscleraCamarasa, Lleida12 m
- 6Avenc de BesoraSanta Maria de Besora, Barcelona10 m
- 7Avencs del Tim I dels TigresSanta Maria de Besora, Barcelona9 m
- 8Bufador Nº16 de BevíSanta Maria de Besora, Barcelona9 m
- 9Bufador Nº5 de BevíSanta Maria de Besora, Barcelona9 m
- 10Forat del PurgatoriVidrà, Girona9 m
- 11Bufador Nº11 de BevíSanta Maria de Besora, Barcelona8 m
- 12Bufador Nº2 de BevíSanta Maria de Besora, Barcelona8 m
- 13Avenc del VentSanta Maria de Besora, Barcelona6 m
- 14Avenc BlancSanta Maria de Besora, Barcelona5 m
- 15Canya de l'óssaColl de Nargó, Lleida5 m
- 16Bufador Nº7 de BevíSanta Maria de Besora, Barcelona4 m
- 17Bufador Nº12 de BevíSanta Maria de Besora, Barcelona3 m
- 18Bufador Nº14 de BevíSanta Maria de Besora, Barcelona3 m
- 19Bufador Nº1 de BevíSanta Maria de Besora, Barcelona3 m
- 20Bufador Nº4 de BevíSanta Maria de Besora, Barcelona3 m
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Source: Espeleoindex (espeleoindex.com), modified. CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/