Avenc de Farrubio
A 106 m deep pit in the El Port massif, E of the summit of Farrubio (791 m). Access from the Caragol on the road to mont Caro, ENE ridge, a little over an hour. Tectonic cavity in an W-E joint.
EspeleoWorld
Avenc de Farrubio
A 106 m deep pit in the El Port massif, E of the summit of Farrubio (791 m). Access from the Caragol on the road to mont Caro, ENE ridge, a little over an hour. Tectonic cavity in an W-E joint.
Tortosa · Baix Ebre
Length: 176 m · Depth: 106 m
Updated record
https://espeleoworld.com/en/c/avenc-de-farrubio
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A 106 m deep pit in the El Port massif, E of the summit of Farrubio (791 m). Access from the Caragol on the road to mont Caro, ENE ridge, a little over an hour. Tectonic cavity in an W-E joint.
Topographic
Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Image © its author.
Description
Morphology
The entrance, of regular dimensions and set in a small depression, has a drop between lips of 4 metres, giving way to a ramp that leads to the first pit (13.5 m) whose base is a narrow ramp floor followed by a new vertical of 10.3 metres.
Next, a very stepped 29 metre pit leads to the –64 level. At this point, a long ramp floor that, followed downwards, is blocked by boulders (–73 level), but if followed upwards it passes over some boulders among which there are some narrow passages. The fissure narrows notably and then the last pit opens, 33 metres and divided by different wedged boulders. At its bottom (–95 level) the floor descends as a ramp and ends in a drop, which is the point of maximum penetration.
The cavity is set in a W-E joint, being one of the so-called “tectonic” cavities, with a clear decalcification morphology.
History
Cavity located by the Tortosa excursionist Rafael Cohí, who communicated the find to some young cavers from a local group called Joventuts Espeleològiques Tortosines (first antecedent of the SIRE-UEC Tortosa and later Espeleo Club Tortosa) who explored it at the end of 1973.
In January 1974 members of the SIE – CE Àliga (Barcelona) explored it again and surveyed it.
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Bibliography
1. Cardona, F. (1990).- Grans cavitats de Catalunya, vol 2. 484 pp. EC Gràcia, Barcelona.
2. Prades, J. (1974).- “Avenc de Farrubio” EspeleoSie (16): 27-35. SIE-CEA. Barcelona
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Source: Espeleoindex (espeleoindex.com), modified. CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/