Geological History
Tens of thousands of years ago, the Azov Sea was much larger and covered the delta of the Kuban River. Deposition of silt by the Kuban gradually pushed out the sea and shaped the delta with numerous limans and shallow estuaries. Frequent eruptions of the mud volcanoes contributed to this deposition process. There are about 25 mud volcanoes in the area and some are still active.
Read more about this topic: Kuban River
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