clay that has dried out in a puddle has cracked and curled, the shore of the kuyalnik estuary, ukraine

clay cracks dry sediment estuary kuyalnik ukraine desiccation soil erosion hydrology geology shoreline evaporation landscape texture moisture ecosystem estuarine saline crust sedimentation minerals drought microclimate geomorphology surface dehydration puddle mudflat substrate desiccant brackish aridity alluvial sedimentary lithology alkaline terrestrial