Window (geology)

Window (geology)

A tectonic window (or Fenster (lit. "window" in German) is a geologic structure formed by erosion or normal faulting on a thrust system. In such a system the hanging wall block is called a nappe. When erosion or normal faulting produces a hole in the nappe where the underlying autochthonous rocks crop out this is called a window.

Windows can be almost any size, from a couple of meters to hundreds of kilometers.


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