Miguel Ángel Poblete Piedrabuena

Las simas del Macizo Occidental de los Picos de Europa: disposición estructural, depósitos asociados y características del drenaje

An overview about the characteristics of the endokarstic cavities in the Western Massif of the Picos de Europa is presented. Four objectives are stressed. First, the analysis of the internal organization and landforms of the shafts, some of them exceed 1,000 m depth. Second, we relate the endokarst and the geomorphological evolution of the massif. Third, we study different types of speleothems and other sedimentary deposits. For last, we also research the peculiarities of the drainage and the main springs that originate.

Landforms in the Campo de Calatrava Volcanic Field (Ciudad Real, Central Spain)

ABSTRACTA detailed geomorphological map of the Campo de Calatrava Volcanic Field (CCVF) is presented at a scale of 1:50,000. The Campo de Calatrava, located on the south-eastern edge of the Hercynian Massif, is one of the most unusual volcanic areas of the Iberian Peninsula. The volcanic activity develops chronologically from Upper Miocene to Holocene, with a wide range of styles and eruptive dynamics that have created a variety of forms and types of volcanoes, the abundance of maars being outstanding. Thus, this map represents both the landforms of volcanic origin and the interferences that volcanic activity has caused in other processes and forms, offering the reader the key to understanding the origin and fundamental features of the landscape of the territory. Also shown is the crucial role geomorphological mapping can play as a basic tool in the conservation of natural heritage and in territorial planning. The mapping system applied is the French CNRS RCP 77, although various local adaptations have be...ABSTRACT A detailed geomorphological map of the Campo de Calatrava Volcanic Field (CCVF) is presented at a scale of 1:50,000. The Campo de Calatrava, located on the south-eastern edge of the Hercynian Massif, is one of the most unusual volcanic areas of the Iberian Peninsula. The volcanic activity develops chronologically from Upper Miocene to Holocene, with a wide range of styles and eruptive dynamics that have created a variety of forms and types of volcanoes, the abundance of maars being outstanding. Thus, this map represents both the landforms of volcanic origin and the interferences that volcanic activity has caused in other processes and forms, offering the reader the key to understanding the origin and fundamental features of the landscape of the territory. Also shown is the crucial role geomorphological mapping can play as a basic tool in the conservation of natural heritage and in territorial planning. The mapping system applied is the French CNRS RCP 77, although various local adaptations have been incorporated. The map legend consists of 80 elements arranged in 10 sections, in which a wide variety of morphostructures, forms and deposits produced under various types of both relict and active morphogenetic systems are identified.

Snow avalanche susceptibility in the eastern hillside of the Aramo Range (Asturian Central Massif, Cantabrian Mountains, NW Spain)

A detailed snow avalanche susceptibility map of the eastern hillside in the Aramo Range (Cantabrian Mountains) is presented at a scale of 1:25,000. The Aramo Range is one of the major middle-altitu...ABSTRACT A detailed snow avalanche susceptibility map of the eastern hillside in the Aramo Range (Cantabrian Mountains) is presented at a scale of 1:25,000. The Aramo Range is one of the major middle-altitude mountains of the Asturian Central Massif. Although it has of moderate height (maximum altitude of 1791 m a.s.l.), its eastern slope presents unusual snow avalanche activity. Specifically, a hundred of snow avalanche tracks have been mapped based on meticulous fieldwork and supported by interviews with local people, searches in newspaper archives, photointerpretation, and calculations based on the digital terrain model and geographic information system. As a result, a susceptibility map has been elaborated, which shows the suitability of combining fieldwork and geographic information technology. The composition consists of two maps that detail how the susceptibility mapping is obtained. The section analysed is limited to the eastern slope of the Aramo Range, whose total surface area is 1555.62 ha.