Some peculiarities of Baer's mounds reformation under Caspian Sea level changes

Abstract

Baer's mounds - the remnants of ancient littoral dunes in Northern Pricaspian - changed their morphology significantly, often taking up freakish shape. It took place due to specific natural conditions and composite rocks such as argillaceous ground and carbonate-gypsum layers, protecting remnants from destruction during multiple transgressions of Caspian Sea.