Antecedent (geology)

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The antecedent is a term from geology .

If a river is forced to cut into it due to the sustained uplift of a ridge running transversely to the direction of flow , this is called antecedent . The Latin root antecedere (to precede ) denotes the fact that the construction of the river system preceded the elevation of the mountain range . Examples of antecedent valley sections are the Rhine when it breaches through the Rhenish Slate Mountains , the Danube at the Iron Gate or the Ebro in the Catalan coastal mountains ( Cordillera Litoral ). There arise u. a. the so-called Klusen . Here, a locally respectively different enhancement amount the inside of the mountain range antecedent necessary flow to the lateral bending out.

Individual evidence

  1. Herbert Louis and Klaus Fischer: Allgemeine Geomorphologie, Volume I , 4th ed., De Gruyter, Berlin, 1979, pp. 341 and 342
  2. Hans Georg Wunderlich: Introduction to Geology, Volume I, Exogenous Dynamics , Bibliographisches Institut Mannheim / Vienna / Zurich, BI-Wissenschaftsverlag, Mannheim, 1968, pp. 79 and 80
  3. ^ Raymond Siever: Allgemeine Geologie , Spektrum Akademischer Verlag, 1994, p. 37