8
Abstracts
quartzite and slate with sub vertical structure , which is located under a coating detrital
quaternary of very thin (1-2 m). This gallery provides a flow of 2.5 l/s average of
mineralized water (948 µS/cm) with a calcium bicarbonate composition, significant
contents of chlorides, nitrates and sodium, and other minor components among which
nickel (4.69 mg/l), selenium (2.15 mg/l), lead (0.97 mg/l) and barium (0.42 mg/l). The
aquifer is formed by a surface area detrital quaternary of alluvial material consisting of clay,
sand, ridges and calcareous crusts, up to 3 meters thick, and cracked a lower zone,
consisting of discontinuities (bedding planes, fissures and fractures) affecting Palaeozoic
materials up to about 40-50 meters deep. It is an unconfined aquifer that is fed by rainwater
infiltration, which levels come from the Matasanos and the Raposo streams that come to
constitute the aquifer axis of natural unload. The spa is famous for its peloids, obtained
from stream sediments of Raposo steams and marinated in tanks for a period of 5 to 8
months, which are used by wrappers for the treatment of rheumatic and osteo-articular
problems.
VII. Soils in “El Raposo” spa environment (Badajoz)
We present in this study developed three soils from different materials belonging to the
Cambrian and Quaternary around the Spa Raposo of the province of Badajoz. Two of them
(profile PI and P-II) formed on shales, sandstones and limestones and P-III profile on crusts
formed on highly degraded limestone under Mediterranean climate. We evaluated the
morphological, physical, chemical and mineralogical characteristics of soils. The profiles
derived from shale and sandstone, surface horizons showed influenced by agricultural
activity that they develop (cereal and olive cultivation) with polyhedral granular structure
and low content of organic C, medium-fine texture, high carbonate content equivalent
calcium and saturated. The profile P-III, dedicated to the cultivation of vineyards, features
textured red clay is carbonate free and having a base saturation> 50%. Mica-illites were the
dominant clay minerals in profiles P-I and P-III. In the profile P-II were majority smectites
and chlorites. As laminar minerals quartz and calcite was detected in varying proportions.
The low precipitation <450 mm attached to the nature of the materials to make original
