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Folding

After the formation of sedimentary rocks, horizontal strata may be changed by later earth movements into

  • upwarps - anticlines
  • downwarps - synclines
Folding occurs in a range of styles and intensities, as illustrated below. Geopix Study Guide "Folding"
  • gives full images of the examples shown below, and others, to illustrate the main types and styles of folding;
  • includes labelled photographs to identify the parts of a fold;
  • gives 'field exercises' on the interpretation of folds;
  • relates the style of folding to stress patterns;
  • includes some images which help to relate outcrops to the representation of fold on maps;
  • suggests how to answer exam questions on this topic.
Warping due to settling
Settling		 Inclined strata
Inclined strata		 Gentle folding
Gentle folding

Stronger folding- anticline
Anticline		 Vertical bedding
Vetical strata		 Faulted fold
With faulting

Anticlines and synclines
Folding		 Anticlines and synclines
Folding		 Associated structures
Fold structures

The Structures: "Folding" Study Guide is part of the Geopix Structures Study Guide CD.

To order this CD go to the Geopix Online Store

The Folding Study Guide contains the following pages:

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