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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 22 (1938)

Issue: 4. (April)

First Page: 483

Last Page: 489

Title: Graphic Treatment of Folds in Three Dimensions

Author(s): A. J. Eardley (2)


A graphic construction of folded beds included between the end points of a traverse, along which both the dip and strike change, is presented. The construction includes the determination of the thickness of beds between two selected strike and dip readings, the direction of the axis, and the pitch of the fold. A method for the determination of the accuracy of the strike and dip readings, provided the folding is concentric, is also included. If the folding is similar and the strike and dip readings are accurate, an approximation of the amount of thickening or thinning is afforded.

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