Sistema Pirata-Pont-Piqueta (Manacor, Mallorca): estat de la qüestió
[eng] In 2012 an almost imperceptible surface current was noticed in the only pool unexplored during the campaign carried out between 2005 and 2006, just at the westernmost point of the Cova de sa Piqueta. As a result of this observation GNM/SEB cave divers resumed their exploratio...
| Autores: | , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad de las Islas Baleares |
| Repositorio: | Biblioteca Digital de les Illes Balears |
| OAI Identifier: | papersSocietatEspeleologica:PapersSEB_2019vol002p069 |
| Acceso en línea: | http://ibdigital.uib.es/greenstone/sites/oai-site/collect/papersSocietatEspeleologica/index/assoc/PapersSE/B_2019vo/l002p069.dir/PapersSEB_2019vol002p069.pdf http://ibdigital.uib.es/greenstone/library/collection/papersSocietatEspeleologica/document/PapersSEB_2019vol002p069 |
| Access Level: | acceso abierto |
| Palabra clave: | Speleology Speleology -- Spain -- Balearic Islands -- Periodicals |
| Sumario: | [eng] In 2012 an almost imperceptible surface current was noticed in the only pool unexplored during the campaign carried out between 2005 and 2006, just at the westernmost point of the Cova de sa Piqueta. As a result of this observation GNM/SEB cave divers resumed their exploration of the cave, making new discoveries and carrying out associated works over the course of 55 days. A total of 5,580 m of new chambers and galleries were explored, providing a whole development of 8,600m, of which 6,385 m are underwater. Th e cave system has been divided into 6 sectors: the Coves del Pirata sector, the Cova des Pont sector, the Cova de sa Piqueta sector, the Manatí sector, the Tàrtar sector and the Terra Incògnita sector. Th e Coves del Pirata sector and the Cova des Pont sector share an underwater connection, while the unpublished Cova de sa Piqueta sector, Manatí sector, Tàrtar sector and Terra Incògnita sector form what is to all purposes a single interconnected underwater zone, totalling 5,700 m of development and 38,230 m² in area. Th ese diving and topographic tasks have made the Pirata-Pont-Piqueta System the third longest cave in the Balearic Islands. Exploratory research has further found that the deepest area of the Tàrtar sector is formed within Mesozoic limestone rocks, showing that speleogenesis has aff ected these basal materials along with those overlying calcarenites from the Upper Miocene. Important fossils of Miocene vertebrates, such as large cetaceans and sirenidae, have also been discovered. Th e CO₂ levels in air-fi lled chambers isolated by submerged galleries have been measured, in order to better understand the particular heterogeneous atmosphere of these spaces and its ability to exchange with the atmosphere outside. |
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