Galician Massif Explained

Galician Massif
Other Name:Macizo Galaico
Macizo Galaico-Leonés
Highest:Peña Trevinca
Elevation M:2124
Coordinates:42.2425°N -6.7958°W
Country:Spain
Subdivision1 Type:Autonomous Communities
Age:Paleozoic
Orogeny:Variscan orogeny
Range Coordinates:42.5°N -14°W

The Galician Massif or Galician-Leonese Massif (Spanish; Castilian: Macizo Galaico, also known as Macizo Galaico-Leonés) is a system of mountain ranges in the northwestern corner of the Iberian Peninsula. It is located in Galicia with its southeastern end reaching into the provinces of Zamora and León of Castile and León. Its highest point is Pena Trevinca at 2127m (6,978feet) . Another important peak is Cabeza de Manzaneda (1,781 m).

In traditional local folklore the forests of the Galician System are said to be inhabited by a variety of elves, fairies, ghosts, the Santa Compaña, the Nubeiro and witches (meigas).

Geology

Geomorphologically the Galician Massif is a northwestern prolongation of the Meseta Central, the inner Iberian plateau and has great affinity with the geology of the Tras os Montes Portuguese region, so that it is considered as a whole under the name 'Galicia-Trás-os-Montes Zone'.[1] It is composed of Paleozoic materials (granite) with metamorphic rocks such as gneiss, slate and schist in the center and west, which were subject to Alpine folding. Its eastern end merges with the Cantabrian Mountains.[2]

The relief of the system, with an average height of 500m (1,600feet), is relatively smooth compared with other Iberian ranges. It is however very complex, having no defined structural alignment owing to the heavy fluvial erosion that has fragmented the terrain.

Generally the system includes mountains that are rounded in shape, often topped by small rocky outcrops, as well as horsts, basins and faults, roughly aligned in a N-S direction.

Vegetation

Since rain is abundant in Galicia, the undisturbed areas of the massif have a soft soil texture and are covered in dense vegetation of temperate deciduous forest where Quercus petraea and Quercus robur oaks predominate. The woods alternate with shrubland and wide natural meadows.[3]

The vegetation is quite homogeneous throughout the massif[4] and there is great plant biodiversity in the Galician mountains. Many of the species found in the mountains were used in Galician traditional medicine.[5]

The Serra dos Ancares was declared a UNESCO Biosphere Reserve in 2006.[6]

Mountain ranges

From the southeast to the northwest the Galician Massif has three physiographic longitudinal sections:

List of ranges

Main ranges and features

See also

External links

Notes and References

  1. http://digital.csic.es/handle/10261/30737 Silurian graptolite biostratigraphy of the Galicia - Tras-os-Montes Zone (Spain and Portugal)
  2. Wes Gibbons & Teresa Moreno, The geology of Spain. Geological Society of London, 2003
  3. http://www.rjb.csic.es/floraiberica/PHP/cientificos_.php?rgen=Quercus CSIC List of Iberian flora Quercus sp.
  4. http://mires-and-peat.net/map04/map_04_06.pdf Assessing the impact of wind farms on the plant diversity of blanket bogs in the Xistral Mountains (NW Spain)
  5. http://wwwlib.teiep.gr/images/stories/acta/Acta%20629/629_8.pdf Medicinal Use of Some Plants in Galicia (NW Spain)
  6. http://www.protectedplanet.net/sites/902999 Os Ancares UNESCO-MAB Biosphere Reserve