Structures, kinematic analysis, rheological parameters and temperature-pressure estimate of the Mesozoic Xingcheng-Taili ductile shear zone in the North China Craton

Liang, Chenyue; Liu, Yongjiang; Neubauer, Franz; Bernroider, Manfred; Jin, Wei; Liu, Weimin; Zeng, Zhaofa; Wen, Quanbo; Zhao, Yue

doi:10.1016/j.jsg.2015.06.007

Cited by 37 publications

(23 citation statements)

References 165 publications

(46 reference statements)

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Section: Resultsmentioning

confidence: 99%

“…Finite strain measurements are used to determine the magnitude and orientation of the strain ellipsoid and deformation regime, and it is an indispensable part of the modern structural geological and rheological research (Bailey & Eyster, ; Li et al, 2017; C. Y. Liang, Liu, Meng, et al, ; C. Liang, Liu, Neubauer, Bernroider, et al, ; C. Liang, Liu, Neubauer, Jin, et al, ; Zheng & Chang, ). Regarding to the strain measurements, a lot of methods can be chosen such as Fry's method, long–short axis, ellipse of inertia, R f /φ, Elliott's method, and neighbour centre‐to‐centre method (Ramsay, ; Shao, Liu, Jia, Li, & Jin, ; Zheng & Chang, ).…”

Section: Estimation Of Finite Strain and Kinematic Vorticitymentioning

confidence: 99%

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Deformation and rheological properties of Dashiqiao Formation of Liaohe Group in Hupiyu area, eastern Liaoning Province

Chang

Liu

et al. 2019

Geological Journal

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The study on deformation characters of the Liaohe Group, exposed in eastern Liaoning Province, NE China, provides a key constraint on the tectonic evolution of the Palaeoproterozoic Liao–Ji active belt in the eastern part of the North China Craton (NCC). In this paper, the deformation pattern and mechanism of the Dashiqiao Fm. from Liaohe Group in Hupiyu area have been systematically studied. The present results show that the structure of the investigated Dashiqiao Fm. exhibits a SW bedding‐parallel thrust shearing which is dominated by simple shearing. Simultaneously, S‐SL tectonites were formed under directional flattening. The deformed quartz grains show obvious dislocation slip which is mainly controlled by the low temperature system of the basal slip system, while calcites mainly develop in low temperature with twin slip. Based on microstructural analysis coupled with fabric features, we estimated that the strain rate is 10−12.78–10−8.32 s−1 under the deformation temperature of 350–400°C with a differential stress of 27.3–44.9 MPa. Our macrostructural–microstructural investigation together with previous researches indicates that the Liaohe Group suffered a bedding‐parallel sliding with top‐to‐outside away from the granite body in the core of Hupiyu anticline, corresponding to the uplift of the Hupiyu granite in the early extensional stage. Subsequently, the Hupiyu area suffered SW–NE compression which resulted in the overturn of the southern limb of the Hupiyu anticline and the top‐to‐SW thrusting.

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Section: Resultsmentioning

confidence: 99%

Section: Estimation Of Finite Strain and Kinematic Vorticitymentioning

confidence: 99%

Deformation and rheological properties of Dashiqiao Formation of Liaohe Group in Hupiyu area, eastern Liaoning Province

Chang

Liu

et al. 2019

Geological Journal

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“…Tectonic shearing along fault zones can cause the uplift and the thermal disturbance of deep crustal rocks (Liang et al, ). Combined with the published radiogenic isotopic data of regional tectonic activities, we discuss the deformation histories of Derbugan Fault based on our new findings and the data obtained in previous studies.…”

Section: Discussion and Interpretationmentioning

confidence: 99%

Deformation of granitic rocks within Derbugan Fault belt, Erguna Massif, Northeast China: Implication of the subduction of Mongol‐Okhotsk oceanic plate

et al. 2019

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The NE-SW striking Derbugan Fault has been comprehensively accepted as a Mesozoic strike-slip fault in Erguna Massif rather than a suture belt of Erguna and Xing'an massifs. The rocks exposed within the fault belt, which consist of Jiageda Formation and intrusions which have been multiply deformed and metamorphosed. These deformed rocks provide an ideal opportunity to understand the geodynamics of the uplift history and tectonic evolution of Derbugan Fault in Mongol-Okhotsk regime and influence of the circum-Pacific tectonic regime, particularly during the later stages of the Mongol-Okhotsk Ocean collision. In this study, we report kinematics, mesomicrostructures, quartz EBSD analysis and geochronology data of the Jiageda Formation exposed within the Derbugan Fault belt in Cuogang area, Erguna Massif. The Jiageda Formation and granitic rocks have experienced regional metamorphism and deformation, and is mainly characterised by simple-shear dominated general shearing with LS tectonites. Our new zircon U-Pb data of mylonitic rocks from Cuogang area yielded ages between 381 to 401 Ma which was produced as a result of the subduction of the Paleo-Asian Ocean. Deformed granitic intrusive formed in the Early Triassic (244.8 ± 5.6 Ma) was related to the southward subduction of the Mongol-Okhotsk oceanic plate beneath the Erguna Massif. The Derbugan Fault represents a ductile to brittle deformation at decreasing crustal level due to the dominant oblique (subhorizontal) slip. The early sinistral strike-slip deformation with a medium temperature between 450 and 550°C developed at a deep ductile regime resulted from NW-SE extension. The subsequent deformation was essentially brittle that corresponded to a low-temperature deformation corresponded to a greenschist metamorphic facies. Crystallographic textures indicate a restricted recrystallisation of quartz mainly via dislocation creep through activation prismatic slip and rhomb slip system, with a later activation of basal slip system. The Early Cretaceous extensional environment may consist with the main medium temperature deformation stage of Derbugan Fault, which was related to either delamination or upwelling of the thickened lithosphere of the Mongol-Okhotsk tectonic regime, and rollback of the Paleo-Pacific Plate.

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“…Lots of experimental studies have demonstrated that recrystallized grains within an oblique grain shape fabric, and their long axes in a fixed orientation which progressively rotate towards parallelism with the shear plane (Dell'Angelo and Tullis, 1989;Ree, 1991;Herwegh and Handy, 1998;Spanos et al, 2015). Notably, this assumption has been extensively used to estimate kinematic vorticity in quartz tectonites (e.g., Weijermars, 1991Weijermars, , 1993Weijermars, , 1998Xypolias and Doutsos, 2001;Law et al, 2004;Zheng and Wang, 2005;Xypolias, 2009;Liang et al, 2015). Thus, it is reasonable to extend this approach to the analysis of calcite tectonites since the mechanism of formation of oblique foliation is similar to both rock types (Passchier, 1998;Spanos et al, 2015).…”

Section: Kinematic Vorticitymentioning

confidence: 99%

Macro‐and Microstructural, Textural Fabrics and Deformation Mechanism of Calcite Mylonites from Xar Moron‐Changchun Dextral Shear Zone, Northeast China

Liang

Liu

Zheng

et al. 2019

Acta Geologica Sinica (Eng)

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The calcite mylonites in the Xar Moron‐Changchun shear zone show a significance dextral shearing characteristics. The asymmetric (σ‐structure) calcite/quartz grains or aggregates, asymmetry of calcite c‐axes fabric diagrams and the oblique foliation of recrystallized calcite grains correspond to a top‐to‐E shearing. Mineral deformation behaviors, twin morphology, C‐axis EBSD fabrics, and quartz grain size‐frequency diagrams demonstrate that the ductile shear zone was developed under conditions of greenschist facies, with the range of deformation temperatures from 200 to 300°C. These subgrains of host grains and surrounding recrystallized grains, strong undulose extinction, and slightly curved grain boundaries are probably results of intracrystalline deformation and dynamic recrystallization implying that the deformation took place within the dislocation‐creep regime at shallow crustal levels. The calculated paleo‐strain rates are between 10−7.87 s−1 and 10−11.49 s−1 with differential stresses of 32.63–63.94 MPa lying at the higher bound of typical strain rates in shear zones at crustal levels, and may indicate a relatively rapid deformation. The S‐L‐calcite tectonites have undergone a component of uplift which led to subhorizontal lifting in an already non‐coaxial compressional deformation regime with a bulk pure shear‐dominated general shear. This E‐W large‐scale dextral strike‐slip movement is a consequence of the eastward extrusion of the Xing'an‐Mongolian Orogenic Belt, and results from far‐field forces associated with Late Triassic convergence domains after the final closure of the Paleo‐Asian Ocean.

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Structures, kinematic analysis, rheological parameters and temperature-pressure estimate of the Mesozoic Xingcheng-Taili ductile shear zone in the North China Craton

Cited by 37 publications

References 165 publications

Deformation and rheological properties of Dashiqiao Formation of Liaohe Group in Hupiyu area, eastern Liaoning Province

Deformation and rheological properties of Dashiqiao Formation of Liaohe Group in Hupiyu area, eastern Liaoning Province

Deformation of granitic rocks within Derbugan Fault belt, Erguna Massif, Northeast China: Implication of the subduction of Mongol‐Okhotsk oceanic plate

Macro‐and Microstructural, Textural Fabrics and Deformation Mechanism of Calcite Mylonites from Xar Moron‐Changchun Dextral Shear Zone, Northeast China

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