Abstract
The Caspian Sea is the largest lake in the world and has been characterized by significant sea-level changes since the Pliocene, when it was disconnected from open sea. These sea-level oscillations have had different impacts on its coastal evolution depending on geomorphological setting. River avulsion on the southeastern flank of the Caspian Sea during the Little Ice Age (LIA), as a consequence of rapid sea-level changes, was studied using sedimentological, historical and geophysical tools. The results show that the Gorgan River and/or its tributaries changed their course during the LIA. The river avulsion could be linked to higher precipitation in the region and rapid Caspian Sea level rise during the second half of the LIA.
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