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Autochthon (geology)

Index Autochthon (geology)

An autochthon in structural geology is a large block or mass of rock which is in the place of its original formation relative to its basement or foundation rock. [1]

6 relations: Allochthon, Klippe, Nappe, Structural geology, Tectonics, Window (geology).

Allochthon

window. A klippe is a solitary outcrop of the nappe in the middle of autochthonous material. In structural geology, an allochthon, or an allochthonous block, is a large block of rock which has been moved from its original site of formation, usually by low angle thrust faulting.

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Klippe

window or fenster. The klippe is the isolated block of the nappe overlying autochthonous material. A klippe (German for cliff or crag) is a geological feature of thrust fault terrains.

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Nappe

In geology, a nappe or thrust sheet is a large sheetlike body of rock that has been moved more than or above a thrust fault from its original position.

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Structural geology

Structural geology is the study of the three-dimensional distribution of rock units with respect to their deformational histories.

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Tectonics

Tectonics is the process that controls the structure and properties of the Earth's crust and its evolution through time.

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Window (geology)

hanging wall block is (when it has reasonable proportions) called a nappe. If an erosional hole is created in the nappe that is called a window. A klippe is a solitary outcrop of the nappe in the middle of autochthonous material. A tectonic window (or Fenster (lit. "window" in German)) is a geologic structure formed by erosion or normal faulting on a thrust system.

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References

[1] https://en.wikipedia.org/wiki/Autochthon_(geology)

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