Editing Doñana National Park (section)

==Geology and geomorphology==
[[File:Doñana - Vista aérea.jpg|thumb|Doñana - Aerial view of Doñana National Park and surrounding areas]]
The geological profile of Doñana National Park reflects the development over several hundred thousand years of a deep [[aquifer]] and [[geomorphology|geomorphological]] features that have enhanced the [[biodiversity]] of the wildlife [[habitat]]s presently found there. After the end of the [[last glacial period]], the area was covered by freshwater and brackish marshes, ponds and sand dunes,<ref name="Roose2006">{{cite book|author=Antti Roose|title=Managing drought and water scarcity in vulnerable environments: proceedings of the 10th European seminar on the geography of water|url=https://books.google.com/books?id=z41KAAAAYAAJ&q=%22aeolian+units%22|year=2006|publisher=University of Tartu, Institute of Geography|isbn=978-9985-4-0497-3|page=32}}</ref> with some marine intrusions caused by high-energy events such as tsunamis and large storms. A period of comparatively rapid rise in global sea level during the first part of the [[Flandrian interglacial]] was associated with the melting of the paleoglaciers, and reached its maximum level 6,500–7,000 years ago. At this time, Doñana National Park and the surrounding areas were flooded, and a lagoon, later called ''Lacus Ligustinus'' by the Romans, was formed. The pace of infilling of the lagoon has increased over the last 6,000 years, along with accelerated growth of [[Spit (landform)|sandspits]] and the creation of new inland marshes and wetlands. The extensive marshes of Doñana National Park now have a flat topography, with some inland depressions occupied by temporary or permanent wetlands, locally called 'lucios'.<ref name="Aritio1988">{{cite book|author=Luis Blas Aritio|title=Parques nacionales españoles|url=https://books.google.com/books?id=exy4AAAAIAAJ&q=%22los%20lucios%20se%20van%20llenando%22|year=1988|publisher=Anaya|page=64|isbn=9788420729534}}</ref> The whole area is protected by the Doñana spit, a wide sandy littoral barrier with mobile dune systems growing toward the southeast.<ref>{{cite web|title=Visit to Doñana National Park|url=http://www.uhu.es/RCANS_Huelva/index.php?url=trips|work=Regional Committee on Atlantic Neogene Stratigraphy|publisher=Universidad de Huelva|access-date=6 April 2014|archive-url=https://web.archive.org/web/20140406194416/http://www.uhu.es/RCANS_Huelva/index.php?url=trips|archive-date=April 6, 2014|date=24–26 September 2013}}</ref>