Paleostress reconstruction from calcite twin and fault–slip data using the multiple inverse method in the East Walanae fault zone: Implications for the Neogene contraction in South Sulawesi, Indonesia

Jaya, Asri; Nishikawa, Osamu

doi:10.1016/j.jsg.2013.07.006

Cited by 23 publications

(19 citation statements)

References 55 publications

(88 reference statements)

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“…In particular, we used the ratio of the number of twinned and untwinned planes consistent with the stress state of interest compared to the total number of twinned and untwinned collected for each sample. If this ratio gets large [ Jaya and Nishikawa , ], then the proposed RST is viable. Twinned planes (up to 51%) and untwinned (up to 92%) are compatible with the proposed stress state, while 40–83% of the total number of faults are suitably oriented for motion under the identified stress state.…”

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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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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“…Calcite-twin data (pairs of adjacent twinned and untwinned c-axis crystallographic orientations from EBSD analysis) were also used to invert for paleostress directions. The twinning data were recast into a form analagous to fault-slip data using the following steps (e.g., Turner, 1962;Groshong, 1975;Engelder, 1979;Kilsdonk & Wiltschko, 1988;Craddock & Magloughlin, 2005;Jaya & Nishikawa, 2013;Kanai & Takagi, 2016): 1) crystallographic orientation data from host calcite grains (N=912) and their adjacent e-twins (N=3937) were collected by EBSD; 2) the crystallographic orientations from the e-twin and the host calcite grains were used to determine the e-twin plane, glide direction, and sense of shear for every twin pair based on the known angular relationships (e.g., Burkhard, 1993); and 3) the kinematic data (glide plane, direction, and shear sense) were converted from a sample coordinate system To analyse both of the above datasets, we use the multiple inverse method (MIM) by Yamaji (2000) to invert the kinematic observations for best-fit stress orientations and values of the stress ratio parameter, Φ (Eq. 3).…”

Section: Recrystallized Grain-size Paleopiezometrymentioning

confidence: 99%

Strength and Stress Evolution of an Actively Exhuming Low-Angle Normal Fault, Woodlark Rift, SE Papua New Guinea

Mizera

Little

Boulton

et al. 2021

Preprint

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 The active Mai'iu low-angle normal fault dips ~20° at the surface, but is steeper at depth.  A differential stress peak of 140-185 MPa at 6-12 km depth was identified in a zone of mixed-mode seismic-and aseismic slip.  High differential stresses drive slip on a ~35° dipping part of this fault and cause new brittle yielding of strong mafic footwall rocks.  The Mai'iu fault is frictionally weak near the surface (µ≈0.15-0.38), but strong in the middle crust (µ>0.25-0.62).  Reconstructed principal stresses are constrictional and consistent with rolling-hinge style flexure of the footwall.

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“…Several researchers adopted the graphical or numerical methods of fault-slip analyses to calcite e-twin data (Pfiffner and Burkhard, 1987;Nemcok et al, 1999;Jaya and Nishikawa, 2014). Although the techniques cannot determine differential stress, they are useful to to determine paleostresses if the e-twin lamellae were formed at a low differential stress.…”

Section: Comparison With Fault-slip Analysismentioning

confidence: 99%

“…On the other hand, Jaya and Nishikawa (2014) employed the multiple inverse method (Yamaji, 2000) to estimate Pliocene stress field. Figure 14 demonstrates that the method succeeded in detecting the stresses that were assumed to generate twin data, because the method is robust to the heterogeneity of data.…”

Section: Comparison With Fault-slip Analysismentioning

confidence: 99%

Generalized Hough transform for the stress inversion of calcite twin data

Yamaji

2015

Journal of Structural Geology

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Since the mechanical twinning along calcite e-planes has a critical resolved shear stress, not only principal stress axes but also differential stress can be determined from the orientations of twin lamellae. Based on the five-dimensional stress space that fulfills the principle of coordinate invariance, it is shown the inversion of twin and untwin data is comparable with fitting a spherical cap to data points on a unit sphere in the space. The principal stress orientations and stress ratio are indicated by the center of the cap, whereas differential stress is denoted by the size of the cap. Based on this geometrical interpretation, a new inversion scheme is proposed. The method is demonstrated to be robust to sampling bias, variability in the critical resolved shear stress, and the heterogeneity of data.

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Paleostress reconstruction from calcite twin and fault–slip data using the multiple inverse method in the East Walanae fault zone: Implications for the Neogene contraction in South Sulawesi, Indonesia

Cited by 23 publications

References 55 publications

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

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

Strength and Stress Evolution of an Actively Exhuming Low-Angle Normal Fault, Woodlark Rift, SE Papua New Guinea

Generalized Hough transform for the stress inversion of calcite twin data

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