2024-03-29T15:33:41Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1613812018-07-11T10:42:59Zcom_10261_82com_10261_8com_10261_262578col_10261_335col_10261_262579
Ballesteros, Daniel
Jiménez-Sánchez, Montserrat
García-Sansegundo, J.
Giralt, Santiago
Meléndez Asensio, Mónica
2018-02-27T10:44:21Z
2018-02-27T10:44:21Z
2017
Geogaceta, 62: 55-58 (2017)
0213-683X
http://hdl.handle.net/10261/161381
We propose a new speleogenetical model of Picos de Europa mountains based on the geomorphology and 234U/230Th geochronology of four pilot caves, as well as the geology, geomorphology and hydrogeology of the karst massif. The model involves six phases: (1) development of cave levels between 750 and 1300 m, probably in the Pliocene-Calabrian, (2) onset of vadose conditions predominance, (3) caves sedimentary infill, (4) erosion of cave sediments, (5) apparent pause of the karstification, and (6) reactivation of the karstification. Cave evolution is related to the fluvial incision, lowering of the watertable, and erosion of Stephanian and Permian-Mesozoic detrital rocks that overlied Picos de Europa limestone presently outcropping. Besides, glaciers and paleoclimate conditioned cave sedimentation during the Early Pleistocene. Copyright© 2017 Sociedad Geológica de España / www.geogaceta.com
spa
openAccess
Alpine karst
Cave
Cave level
Geomorphology
Speleogenesis
Proposal of a new speleogenetical model for Picos de Europa (Cantabrian Mountains, Spain)
artículo