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6 - Role of Pre-existing Anisotropy in Evolving Strike-Slip Structural Styles

Published online by Cambridge University Press:  23 January 2025

Michal Nemčok
Affiliation:
RM Geology
Anthony G. Doré
Affiliation:
Statoil (UK) Ltd.
Andreas Henk
Affiliation:
Technische Universität Darmstadt
Helen Doran
Affiliation:
Ola Geoscience
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Summary

This chapter discusses the transform fault precursors, continental strike-slip fault zones, and the role of pre-existing anisotropy on their development. It focuses on the potential perturbation of their controlling dynamics and its effect on their structural architecture. The chapter contains a series of examples from failed and successful rift systems, helping to understand the role of different scales of pre-existing anisotropy. These examples serve to illustrate the wide variety of transform, transfer, and accommodation zones that may evolve as a result of crustal inhomogeneities during the activity of a controlling stress regime. They also show how the anisotropy zones manifest themselves in different ways, depending on the relationship between the type of anisotropy and the imposed slip vector.

Type
Chapter
Information
Strike-Slip Terrains and Transform Margins
Structural Architecture, Thermal Regimes and Petroleum Systems
, pp. 203 - 224
Publisher: Cambridge University Press
Print publication year: 2025

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