Monthly Archives: July 2013

Normal faults (graben) restoration

This beautiful picture of a graben near Zanjan, Iran was taken by Mehdi Jahangiri and Reza Alipour. These are pretty clean faults, but if you look closely you will see that they are not perfectly planar. Changes in dip occur across … Continue reading

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Reverse faults

Reverse faults shorten horizontal layers and are therefore contractional faults. This is an example of a reverse fault in fine-grained sandstones and siltstones of the Entrada Sandstone (lower reddish part) and Curtis Formation (upper part) – part of the Jurassic stratigraphy … Continue reading

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