Geology of the National Park
The Plitvice lakes National Park belongs to Dinaric karst area and due to its specific geology, geomorphology and hydrology it truly is one of the most impressive karst entities in the world. Apart from dolomitic rock, mesosoic limestones with dolomite inserts prevail. The ratio between less porous or water-retaining dolomites and porous Jurassic limestone sediments in the karst has influenced the landscape of the overall area today. Specific hydrology properties of rock have enabled water retention on Triassic dolomite rocks, as well as canyon formation by water cutting through Cretaceous limestone deposits. Tufa barriers are a phenomenon enabling water to remain inside the lakes.