Zungenbecken

Glacial series

A Zungenbecken, also called a tongue basin or tongue-basin, is part of a succession of ice age geological landforms, known as a glacial series. It is a hollow that is left behind by the ice mass, as the snout of the glacier recedes, which initially fills with meltwater, forming a proglacial lake, and later may be filled with surface water from streams or precipitation. When the glacier has more fully retreated this produces a finger lake or glacial piedmont lake. The term Zungenbecken is of German origin, but used in English language sources.

This keyword could refer to multiple things. Here are some suggestions: