Geology and geomorphology Doñana National Park

doñana - aerial view of doñana national park , surrounding areas

the geological profile of doñana national park reflects development on several hundred thousand years of deep aquifer , geomorphological features have enhanced biodiversity of wildlife habitats presently found there. after end of last glacial period, area covered freshwater , brackish marshes, ponds , sand dunes, marine intrusions caused high-energy events such tsunamis , large storms. period of comparatively rapid rise in global sea level during first part of flandrian interglacial associated melting of paleoglaciers, , reached maximum level 6,500–7,000 years ago. @ time, doñana national park , surrounding areas flooded, , lagoon, later called lacus ligustinus romans, formed. pace of infilling of lagoon has increased on last 6,000 years, along accelerated growth of sandspits , creation of new inland marshes , wetlands. extensive marshes of doñana national park have flat topography, inland depressions occupied temporary or permanent wetlands, locally called lucios . whole area protected doñana spit, wide sandy littoral barrier mobile dune systems growing toward southeast.