Avenc del Mustafà
A 12-metre-deep pit in Garraf (Gavà), discovered and explored in 1962 by the GIE – CE de Gràcia.
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Avenc del Mustafà
A 12-metre-deep pit in Garraf (Gavà), discovered and explored in 1962 by the GIE – CE de Gràcia.
Gavà · Baix Llobregat
Sviluppo: 26 m · Profondità: 12 m
Scheda aggiornata
https://espeleoworld.com/it/c/avenc-del-mustafa
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A 12-metre-deep pit in Garraf (Gavà), discovered and explored in 1962 by the GIE – CE de Gràcia.
Topografia
Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Immagine © del suo autore.
Foto
Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Immagine © del suo autore.
Descrizione
Morfologia
The mouth gives access to a short ramp that connects with a shaft of irregular structure and descends to the -9 level, where an accumulation of blocks stops progress. Some 2 metres above the base of the shaft, a window in the N wall connects with a small chamber. From this small chamber situated at -7 metres, a small jointed shaft of about 2 metres, with a width of between 25 and 30 centimetres, and the Pas de la Calma, a very selective 30x35 centimetre hole, give access to the Sala dels Coral·loides, at a depth of -12 metres.
Concrezioni
The small chamber connects with quite a few relict formations. The Sala dels Coral·loides has some beautiful cauliflower-shaped formations.
Progressione
From the small chamber situated at -7 metres you continue descending through the trencacostelles, a small jointed shaft of about 2 metres, with a width of between 25 and 30 centimetres; then you must get through the Pas de la Calma, a very selective 30x35 centimetre hole; once through, with an easy 3-metre scramble you reach the Sala dels Coral·loides, which marks the end of the exploration at a depth of -12 metres.
Storia
Discovered and explored by members of the GIE – CE de Gràcia in 1962. On 2-11-2017 Enric Porcel and Carles Miranda (GEB) carried out a new survey of the cave that brought no further developments. On 23-11-2019 Rafa Fraguas paid a brief visit to the pit, intrigued by the mystery presented by the old survey, thinking that it might continue. On 11 January 2020 he decided to return and force the passage, since on the previous visit he had observed an evident continuation. After chipping the walls of the shaft a little, he reached the extremely narrow head of a further shaft; once the passage had been cleared, he reached the terminal chamber of the pit. He returned again on 19 January 2020 to survey and photograph it.
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Bibliografia
- Borràs, J. (1974).-Catálogo espeleológico del macizo de Garraf. Vol. II. 166 pp. Barcelona.
- Valles, Jordi de(2017).-”Baix Llobregat”. Catàleg Espeleològic de Catalunya (Vol.6):1-468. ECG/FCE.
- Coordenades, dades de situació i fotografia de la boca facilitades per Lluís Muntan (GES-CMB).
- Actualització de la fitxa (març 2016) posant la topografia original.
- Topografia i fotografies de la boca extretes del web (www.geb.cat) post del dia 2-11-2017 i realitzades per Enric Porcel i Carles Miranda.
- Dades actualitzades l'abril del 2020, topografia i fotografies facilitades per Rafa Fraguas.
Grotte vicine
Fonte: Espeleoindex (espeleoindex.com), modificato. CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/