|Location:||Montserrat, north of Barcelona. Collbató, Ctra. N-II,km 576-A|
|Open:||All year Sun, Hol 10:45-13:15, 16:45-18:15|
|Address:||Les Coves del Collbato, Tel: +34-93-7779076.|
|Last update:||$Date: 2013/04/25 22:58:22 $|
The Coves del Collbato are a cave with a view. The entrance opens right inside a vertical limestone wall and the visitor has to walk up about 20 mins a sometimes steep trail to the cave entrance. The cave was discovered during sodium nitrate mining at the entrance.
The rocks of the Montserrat massif are conglomerates with a carbonatic matrix. They were sedimented in a delta of several rivers draining into a shallow inland sea. The rivers deposited coarse, heavy, well-rounded stones and cobbles, which become finer towards the south of the massif. During diagenesis the debris was transformed into conglomerate by a limestone cement which originated from the shells of lake organisms. The conglomerate layers fall to the northeast, which is clearly visible in the cave map. Many passages follow this main direction.
The cave is a karst cave, but caves in conglomerate are rather rare, as the karstification depends on an high limestone ratio in the conglomerate. But this cave shows rather huge chambers, as the Cova de la Cathedral (cathedral hall) is 60m long and 35m wide. The cave is used for concerts.
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