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The AAPG/Datapages Combined Publications Database

Four Corners Geological Society


Natural Fracture Systems in the Southern Rockies, 1999
Pages 37-39

Beware of Gravity Fractures and Non-Structural Lineations

John F. Harris, Alan P. Emmendorfer


The most common mistake made by both companies and the personnel who perform surface fracture and lineament studies is the inclusion of gravity fractures and non-structural lineaments in structural interpretation of an area. The determination of what constitutes a fracture due to compressional folding and separation from fractures related to other causes must be a part of any fracture study. It is this casual observation of the data that often imposes misinformation and may cause confusion when performing structural analysis and must be avoided if the search for fractured reservoirs is to be successful.

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