Geological Map of the Northern Volcanic Zone, Southern Part - Odaahraun 1:100 000 Ijsland - This new geological map covers many of Iceland s natural wonders, including the most recent lava flow, Holuhraun, erupted in 2014-2015. Subglacial formations and postglacial lavas with volcanic craters and fissures form the largest part of the map. A total of 90 volcanic lava flows were classified and divided into categories based on age and rock type. Other features of interest include, for example, the flood plains of Jokulsa River which provide evidence of catastrophic floods in the past. There are oases forming by cold springs and geothermal surface activity is widespread. In addition, fissures and faults characterize much of the landscape. The map gives the most accurate account to date of the geology of the area and shows it in greater detail than ever before.
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