Syncline
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A syncline also syncline or synclinorium ( ancient Greek συγκλίνειν synklínein "to each other tend '), the downwardly directed portion of a fold (well) which is formed by co-compression of rocks under lateral pressure, the most recent films are in the well core. If the age sequence ( stratigraphy ) is not known, one speaks of a synform . It is the opposite of an anticline or an antiform (saddle). There can therefore also be a synformal anticline. Depending on the size of the fold, the syncline can express itself as a concave indentation in the surface of the earth or the depth line, which the line of greatest depth along a valley can follow.
The geosyncline theory , which explains the formation and change in the earth's crust through the formation of large synclines under the seas, was the predominant explanation of mountain formation , also known as orogenesis , until the theory of plate tectonics was developed .
Individual evidence
literature
- Hans Murawski, Wilhelm Meyer: Geological dictionary . 10th, revised and expanded edition. Enke, Stuttgart 1998, ISBN 3-432-84100-0 .
- Gerhard H. Eisbacher: Introduction to Tectonics . 1st edition. Ferdinand Enke Verlag, Stuttgart 1991, ISBN 3-432-99251-3 .
