Post on 09-Jan-2016
Embed Size (px)
DESCRIPTIONOur Alcarria. What´s Alcarria?. The Alcarria is a natural Spanish region, located in the southern sub plateau, which cover most part of Guadalajara´s province, northeast of Cuenca and a small area of southeast of Madrid. - PowerPoint PPT Presentation
The Alcarria is a natural Spanish region, located in the southern sub plateau, which cover most part of Guadalajaras province, northeast of Cuenca and a small area of southeast of Madrid.
Its name comes from Arabic that means: high and satin ground with little grassAlcarrias formation
We are going to talk about the different stratums that form the Alcarria from the dared observation of the Badiels Valley in Muduex. We climbed one of the two slopes of the valley. This is a great example in order to understand Alcarrias relief.
Paleozoic and the triasics orogeny. On this period the sediments deposited in the lakes or seas inside the peninsula, for example the Alcarrias formation. After that, an orogeny happened making these sediments vertical and giving new sea. This orogeny moved all deposits thaty the last lake or sea gave us; these deposists were gravel, clay, limestone, forming the lacustrine of Alcarria.
Mesozoic, the ground goes up. In the Mesozoic era, the Earth began two kinds of movement: the first one had as consequence the formation of many mountains chains also called the second Orogeny; the second movement which however was a part of the second orogeny ended with a rising of the earth.Cenozoic, filling the rivers.About 10 millions years ago La Alcarria was an intricated system of lakes, nevertheless the waters of these lakes werent very deep. Under these lakes a lot of sedimentary rocks formed. In the superior Miocenich all the lakes were filled by the rocks, and this formed the actual mountains.
Badiel valles reliefWe climbed the gloomy slope from the road, which was 809 meters and as we walked we were measuring the height of the different stratums. The erosion of all layers took place in periglacial climate. This type of climate occurs in areas where temperatures range from a few degrees below 0 C and 10 C. Badiel valleys reliefAt the foot of the slope there is a base of clay and sand, in the 870 meters there is a landslide of limestones. In 920 meters the limestones are, where the slope has been drained clays above.
Badiel valleys reliefAt 945m we can see hillside phenomenon and under them we can see clays, finally before of the thick limestones stratum we can find at 950m an original clay marls stone and at last it is the greatstratum of limestones. At 980 we can see limestones and at 985 metres we can see hillside phenomenoms again.The last stratum is limestone which extends from 995 m to 1020-1050m, where we find the moor, here, holm oak, sunflowers' growing and also limestones field are abundant.
Vegetation of the High-Flat Plateau.
This is the end of our projectIES Brianda de Mendoza (Guadalajara) Liceo Scientifico Statale Leon Battista Alberti (Npoles)Enero 2012 Abril 2012