The blowholes fields of Pría and Arenillas (Asturias). World geological heritage?
DOI:
https://doi.org/10.55407/geogaceta98280Keywords:
limestone cliffs, Asturias, karst, blowholes, geological heritageAbstract
This work highlights the geological heritage of a sector of the eastern Asturian limestone coast, quantitatively and qualitatively characterising the unique morphologies. To this end, an analysis of the main karst-marine landforms observed in these cliffs has been carried out, generating the broadest possible inventory of the morphologies present. Also blowholes are an outstanding feature in the inventory, being represented in two fields, those of Pría and Arenillas, which can be considered the largest concentration sites of these in Europe and possibly in the world. And finally a detailed study of the bedding has been carried out, measuring the directions of development of faults and diaclases in those contacts with the greatest extension. On this coast, in addition to karst and karst marine forms of various types, other types of elements linked to coastal dynamics can be observed, such as beaches and confined estuaries. Some of the forms linked to karst are included in the Spanish Inventory of Places of Geological Interest (IELIG). Given their international relevance, it is proposed that they be included in the Global GEOSITES Project.
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Copyright (c) 2023 Germán Flor-Blanco, Luna Adrados, Sergio Llana-Fúnez, Viola Bruschi
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