El modelat exocàrstic de les Balears i els camps de lapiaz de mitjana muntanya mediterrània a la serra de Tramuntana de Mallorca
The geological setting of the Balearic archipelago, largely formed of limestone rocks, and its typical Mediterranean bioclimatic conditions produce distinctive karst landforms, including surface depressions, solutional karren features and fluvio-karstic canyons. Unquestionably the most outstanding k...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universidad de las Islas Baleares |
| Repositorio: | Biblioteca Digital de les Illes Balears |
| OAI Identifier: | monografiesHistoriaNatural:MonografiesSHNB_2011vol017p053 |
| Acceso en línea: | http://ibdigital.uib.es/greenstone/sites/oai-site/collect/monografiesHistoriaNatural/index/assoc/Monograf/iesSHNB_/2011vol0/17p053.dir/MonografiesSHNB_2011vol017p053.pdf http://ibdigital.uib.es/greenstone/library/collection/monografiesHistoriaNatural/document/MonografiesSHNB_2011vol017p053 |
| Access Level: | acceso abierto |
| Palabra clave: | Geology Spain Illes Balears Natural History |
| Sumario: | The geological setting of the Balearic archipelago, largely formed of limestone rocks, and its typical Mediterranean bioclimatic conditions produce distinctive karst landforms, including surface depressions, solutional karren features and fluvio-karstic canyons. Unquestionably the most outstanding karst region of the Balearic Islands, in what concerns exokarstic features, is the Serra de Tramuntana mountain range, in Mallorca Island. Karren landforms of this region gained the early interest of naturalists already in the XIXth century; afterwards, during the XXth century, some researchers from central Europe pointed out the spectacular nature and geomorphological richness of the exokarst in the Mallorcan mountains. In the last decades a lot of literature has been devoted to surface solutional features in Serra de Tramuntana, ranging from morphological and morphometrical aspects to genetic or evolutive ones. The exokarst in the studied area is characterized by a remarkable variety of solutional landforms, arranged in extensive and spectacular karrenfields, popularly designated as esquetjars or rellars. These are the result of a wide diversity of environmental situations, basically controlled by the climatic gradients linked to the altitude (ranging from sea level to above 1,400 m). The impacts of human activity over the last 5 millennia, together with other mechanisms of natural deforestation, have produced a complex evolutionary history of the existing karrenfields within a mediterranean mid-mountain framework. Among the most characteristic karst landscapes, the mid-mountain pinnacle karrenfields intensively sculptured by small scale solutional forms (basically rillenkarren, rinnenkarren and trittkarren) must be highlighted. On the other hand, the highest peaks of the Serra show karren assemblages influenced by present and past cold climate conditions. |
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