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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 67 (1983)

Issue: 2. (February)

First Page: 313

Last Page: 319

Title: Localization of Aggregate Stylolites by Rock Properties: GEOLOGIC NOTES

Author(s): R. A. Nelson (2)


Stylolites are major stress-related diagenetic features in sedimentary rocks. By considering stylolitization in light of the mechanical properties of the rocks involved, there may be some basis for the prediction of their occurrence. This article discusses the position of stylolites in light of the mechanical properties of the rocks involved and any mechanical discontinuities within these units. This discussion suggests the use of point-load hardness mapping as a tool in helping to define these variations and discontinuities. These maps can be used to high-grade thin section selection in order to define mechanically important petrologic variations. Once a significant interrelationship is defined between mechanical properties, petrology, and stylolite occurrence within a u it, stylolite location could be used as a tool in defining petrologic/mechanical variations on a large scale.

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