Borrokosko 01; Bk 01
A swallow-hole pit at the contact between limestone and flysch, with a 4 x 3 metre entrance and a 5 metre drop, whose bottom is blocked by a plug of boulders.
EspeleoWorld
Borrokosko 01; Bk 01
A swallow-hole pit at the contact between limestone and flysch, with a 4 x 3 metre entrance and a 5 metre drop, whose bottom is blocked by a plug of boulders.
Urraul Alto
Sviluppo: 5 m · Profondità: 5 m
Scheda aggiornata
https://espeleoworld.com/it/c/borrokosko-01-bk-01-urraul-alto
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A swallow-hole pit at the contact between limestone and flysch, with a 4 x 3 metre entrance and a 5 metre drop, whose bottom is blocked by a plug of boulders.
Descrizione
Morfologia
This is a swallow-hole pit opened in the limestone–flysch geological contact. The preferential E-W joint direction is common to all the cavities in this sector. Its entrance opens with dimensions of 4 x 3 metres and with a drop of 5 metres. At its bottom we find a plug of boulders that prevents progression. 10 metres to the North there is a cavity with a boulder at its head of scant dimensions and with a drop of 5 metres.
Storia
1998 C. CABODEVILLA G.E. SATORRAK
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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