Elastic stress relaxation: A mechanism for opposite sense of secondary faulting with respect to a major fault

Du, Yijun; Aydin, Atilla

doi:10.1016/0040-1951(96)00017-0

Cited by 7 publications

(1 citation statement)

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“…The origin of these permutations may result from a variety of causes, which can be classified into two groups. The first group involves actual modifications in the stress field induced by far‐field changes, e.g., plate motion changes, or local conditions that affect the vertical stress (erosion, burial, and elastic rebound [ Garcia et al , ]) and stress relaxation [ Du and Aydin , ]. The second group involves little change in tectonic environmental conditions and is mainly controlled by ongoing brittle deformation inducing stress changes; e.g., stress drop, which may depend on the rheological properties of the affected rock masses [ Hu and Angelier , ] or an abundance of mesoscale reverse faults versus strike‐slip faults, pressure solution cleavages and veins [ Tavani et al , , ]; dike injections; and accommodation around tilted blocks.…”

Section: Discussionmentioning

confidence: 99%

Determination of the tectonic evolution from fractures, faults, and calcite twins on the southwestern margin of the Indochina Block

et al. 2015

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In polyphase tectonic zones, integrating a study of fault and fracture with calcite twin analysis can determine the evolving paleostress magnitudes and principle stress directions that affected the area. This paper presents the results of the analyses of fractures, striated faults, and calcite twins collected within the Khao Khwang Fold-Thrust Belt in central Thailand (SE Asia). Here we attempt to reconstruct the orientation of the principal stresses that developed during the tectonic evolution of this highly deformed, polyphase orogen. Tectonic data were collected in the Permian carbonates of the Khao Khad Formation of the Saraburi Group, and five successive tectonic stages are determined that are interpreted to have developed before, during, and after, the Triassic Indosinian Orogeny. The first three stages predate the main deformation event: the first stage is interpreted as a pre-Indosinian N-S extensional stage, the second stage described a N-S strike-slip and compressional regime, largely perpendicular to the fold axes of the main structures, while the third stage is associated with an E-W compressional strike-slip phase. A further two stages took place after, or during, the main folding event and correspond to N-S compression and to an E-W composite strike-slip/contractional stage, the latter which is interpreted to represent Cenozoic deformation related to the India-Asia collision.

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