P-23
A cavity in a karst of dolines and lapiaz between Larrobi and Ailola, with a narrow shaft of wedged blocks and an ascending meander toward a parallel shaft choked with stones and humus.
EspeleoWorld
P-23
A cavity in a karst of dolines and lapiaz between Larrobi and Ailola, with a narrow shaft of wedged blocks and an ascending meander toward a parallel shaft choked with stones and humus.
Valle de Yerri/Deierri
Profondità: 18 m
Scheda aggiornata
https://espeleoworld.com/it/c/p-23-valle-de-yerri-deierri
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A cavity in a karst of dolines and lapiaz between Larrobi and Ailola, with a narrow shaft of wedged blocks and an ascending meander toward a parallel shaft choked with stones and humus.
Descrizione
Morfologia
In that area there is a powerful karst that presents alignments of deep dolines with numerous fissures and abundant vegetation. Beneath the limestone escarpments of W-E alignment there is a giant lapiaz with a multitude of fractures, with decametric dolines on its southeast side, through which the numerous fractures (N240/N400) form a labyrinth of ramps and small depressed basins. In one of those basins the mouth of the cavity opens, with a narrow shaft with wedged blocks that makes passage difficult.
Progressione
After passing the narrow shaft with wedged blocks and along an ascending meander, one reaches a parallel shaft that is choked by stones and humus a little further down.
Storia
1989/2006 Research Urbasa G.E.E
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Fonte: Gobierno de Navarra – Catálogo espeleológico de Navarra (datosabiertos.navarra.es), modificato. CC BY 4.0, https://creativecommons.org/licenses/by/4.0/ Gobierno de Navarra · dati aggiornati a 2022