The Xuelongshan high strain zone: Cenozoic structural evolution and implications for fault linkages and deformation along the Ailao Shan–Red River shear zone

Zhang, Bo; Zhang, Jinjiang; Jiang, Liu; Wang, Yang; Yin, C. Y.; Guo, Lei; Zhong, Dandan; Lai, Qinzhou; Yue, Yahui

doi:10.1016/j.jsg.2014.10.008

Cited by 57 publications

(71 citation statements)

References 67 publications

(172 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fact that the Song Chay and the Vinh Ninh Faults confine both the Song Hong Basin depocenter and the Dai Nui Con Voi metamorphic core complex points to a direct link between the metamorphic core complexes and basin formation. The metamorphic core complexes along the ASRRSZ are often considered to have formed and exhumed throughout a continuous extrusion‐related process (Anczkiewicz et al, ; Burchfield et al, ; Searle et al, ; Yeh et al, ; Zhang et al, ). The basin analysis presented here of the greater Song Hong Basin points toward that Indochinese extrusion took place through tectonically distinct steps initiating with massive later Eocene through Oligocene transtension.…”

Section: Discussionmentioning

confidence: 99%

“…Searle () on the other hand suggested that most of these granites predate left‐lateral shearing and thus provide little constraint on the age of shearing. Subsequent analyses of granite dykes within the metamorphic core complex document intrusion ages in between 38 and 21 Ma (Figure ; Cao, Liu, et al, ; Li, Ji, et al, ; Liu, Chen, et al, ; Liu, Wang, et al, ; Searle et al, ; Tang et al, ; Zhang et al, ). Earliest Miocene intrusions are not, or only slightly, deformed compared to the pervasively left‐laterally sheared metamorphic core complex host rocks.…”

Section: Geological Settingmentioning

confidence: 99%

See 1 more Smart Citation

Linking Paleogene Rifting and Inversion in the Northern Song Hong and Beibuwan Basins, Vietnam, With Left‐Lateral Motion on the Ailao Shan‐Red River Shear Zone

Fyhn

Cuong²,

Hoang³

et al. 2018

Tectonics

View full text Add to dashboard Cite

Extrusion tectonics forced by plate collisions shape continents not only through lateral terrain displacement and mountain building but also through massive rifting and basin development. The rift system underneath the Gulf of Tonkin, Vietnam, constitutes a world-class example of how extrusion tectonics drives continental rifting and transtensional basin development. Rifting and the Song Hong and Beibuwan Basin evolution are compared with the development of the Ailao Shan-Red River Shear Zone (ASRRSZ) that accommodated the extrusion of Indochina forced by the Indian-Eurasia collision. Rifting occurred during later Eocene-Late Oligocene time forced by ASRRSZ left-lateral shearing. Latest Oligocene-earliest Miocene transpression and inversion brought rifting to a halt, after which left-lateral shearing decreased. Paleogene rift systems extended along the trail of the ASRRSZ now outlined by lower to midcrustal metamorphic core complexes. Most of these rift systems were probably inverted and removed during the latest Oligoceneearliest Miocene, however. The metamorphic core complexes are suggested to represent the lower to midcrustal roots of these transtensional rift basins exhumed by inversion. Rift termination in the northern Gulf of Tonkin and exhumation of the metamorphic core complexes coincided with cessation of Paleogene rifting along the western South China Sea, and a common causal mechanism is speculated. Recent discussions of the ASRRSZ concern four major aspects: (1) the timing of motion, (2) the crustal architecture of the shear zone, (3) the amount of lateral offset, and consequently, (4) the regional plate tectonic implications of the shear zone.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Linking Paleogene Rifting and Inversion in the Northern Song Hong and Beibuwan Basins, Vietnam, With Left‐Lateral Motion on the Ailao Shan‐Red River Shear Zone

Fyhn

Cuong²,

Hoang³

et al. 2018

Tectonics

View full text Add to dashboard Cite

show abstract

“…Four metamorphic massifs are exposed along the ASRRB, namely, the Xuelong Shan, Diancang Shan, Ailao Shan, and Yao Shan‐Day Nui Con Voi (DNCV) from north to south (Figure ). The four massifs constitute dome structures (Chen et al, ; B. Zhang et al, ), which are composed of two contrasting metamorphic belts, that is, the high grade cores overlain by the low grade shells. The Proterozoic high‐grade metamorphic rocks in the cores were metamorphosed up to upper amphibolite facies with widely developed migmatization, and the Paleozoic‐Early Mesozoic rocks in the shell were transformed into low‐grade metamorphic rocks.…”

Section: Tectonic Settingmentioning

confidence: 99%

Multistage Remobilization of the Southwestern Margin of the South China Plate: Insights From Zircon U‐Pb Geochronology and Hf Isotope of Granitic Rocks From the Yao Shan Complex, Southeastern Tibet Plateau

et al. 2019

View full text Add to dashboard Cite

The Yao Shan complex, located at the southwestern margin of the South China plate, to the east of the Sanjiang-Southeast Asia Tethyan domain, and at the northern extension of the Day Nui Con Voi massif of the Ailao Shan-Red River shear zone, provides a reasonable example to study the multistage tectonic remobilization of continental plates. In this paper, we present new zircon LA-ICP-MS (Laser Ablation Inductively Coupled Plasma Mass Spectrometry) U-Pb dating results and Hf isotopic data of the granitic plutons and dikes from the Yao Shan complex. Zircon U-Pb ages of the granitic intrusions mainly concentrate on three periods: 825-780, 82-69, and 31-29 Ma. The zircons are characterized by mainly negative εHf(t) values with T DMC ages of 2637-1645, 1964-1610, and 2077-1400 Ma, respectively. The results show that the Yao Shan complex record evidences for three episodes of extensive partial melting of middle and lower crustal Precambrian crystalline basement rocks. They contributed to the granitic magmatism in relation to tectonic processes and structural deformation from Neoproterozoic, Late Cretaceous to Oligo-Miocene. Therefore, we argue that the southwestern margin of the South China plate is the weakness for multistage remobilization throughout the tectonic evolution of the plate after its primary cratonization. Remobilization of the plate margin is related to oceanic plate subduction, triggered by rifting in a passive continental margin setting, induced by extension at back-arc setting, or resulted from continental extrusion.

show abstract

“…The 5 to 8-km-wide, greater than 650-km-long mylonitic and ultramylonitic zone runs along the Gaoligong massif from the Eastern Himalayan Syntaxis in Tibet into the Burma Mogo Massif, southward close to the Sagaing zone ( Fig. 1, 2) (Socquet and Pubellier, 2005;Lin et al, 2009;Zhang et al, 2014). This array of mylonites was interpreted to have developed within a ∼10to 15-km-deep zone of moderate-temperature (400-600°C) (e.g., Wang et al, 2006;Akciz et al, 2010;.…”

Section: Gaoligong Shear Zonementioning

confidence: 99%

“…The origin of gneiss domes are still extensively debated because a given dome geometry may result from different mechanisms (e.g., Coney, 1980). Several emplacement mechanisms are proposed, including: (1) shortening resulting in duplex structures and/or folding interference (e.g., Ramsay, 1967;Burg et al, 2004;Zhang et al, 2014); (2) diapirism driven by buoyant upwelling with inversion of the rock densities due to melting of granitic basement (e.g., Brun, 1981;Teyssier and Whitney, 2002;Whitney et al, 2004;Xu et al, 2015); (3) tectonic denudation localized along major shallowly dipping extensional detachments (Davis and Coney, 1979;Lee et al, 2004) or isostatic rebound caused by extension along a large-scale detachment (Axen et a., 1995); (4) duplex-related folding (Yin, 2004); or (5) some combination of these processes (e.g., Ramberg, 1980;Whitney et al, 2004;Charles et al, 2009). Nevertheless, understanding of dome structures and their roles is necessary to reveal the regional geodynamics of Archean to Phanerozoic orogens, worldwide (Whitney and Teyssier, 2004).…”

Section: Introductionmentioning

confidence: 99%

Intra-continental transpression and gneiss doming in an obliquely convergent regime in SE Asia

Zhang

Chai

Yin

et al. 2017

Journal of Structural Geology

Self Cite

View full text Add to dashboard Cite

The Tengchong terrane comprises a sequence of linear dome-like zones, cored by granite and migmatitic layers. These cores are mantled by predominantly gneiss and subordinate schist sequences, decreasing in deformation intensity outward from extensive mylonitization to weak mylonitization. The pre-doming deformation was characterized by the formation of large-scale top-to-the-east shearing (D1) in the gneiss terrane, locally preserved flat-lying foliation (S1), weak folding (F1) and emplacement of the Mangbang granite during the Cretaceous (114-104 Ma). The second stage of deformation (D2) consisted of map-scale east-verging folds (F2, dome amplification) and minor lateral strike-slip shear zones between the anticlines in the gneiss and migmatitic sequences. Extensive partial melting and emplacement of 67-30 Ma synkinematic granitoid bodies/veins occurred, leading to the emplacement of wedges of granite into the easterly directed F2 fold cores. These wedges formed kilometer-scale granitoid domes. The post-doming D3 deformation with transpression recorded strain partitioning with simple shear-dominated high-strain zones along the Gaoligong and Nabang dextral lateral strike-slip shear zones (active during 30-11 Ma). Late transtensional deformation (D4) during cooling of the entire terrane involved the localized low-temperature Gaoligong west and east detachment faults that controlled the late exhumation of the Gaoligong metamorphic zone (since 10 Ma). Our structural observations, combined with previous studies, suggest that this style of doming is a representative type of intra-continental deformation in the Cenozoic during the oblique India-Asia collision. The actual dome shapes reflect formation of antiforms during compression-dominated transpression, prior to localized strike-slip shearing, in the accommodation belt around the Eastern Himalayan Syntaxis. Vertical exhumation of crustal material by contractional doming played an important role in absorbing the vast majority of the internal deformation of crustal fragments during oblique collision.

show abstract

The Xuelongshan high strain zone: Cenozoic structural evolution and implications for fault linkages and deformation along the Ailao Shan–Red River shear zone

Cited by 57 publications

References 67 publications

Linking Paleogene Rifting and Inversion in the Northern Song Hong and Beibuwan Basins, Vietnam, With Left‐Lateral Motion on the Ailao Shan‐Red River Shear Zone

Linking Paleogene Rifting and Inversion in the Northern Song Hong and Beibuwan Basins, Vietnam, With Left‐Lateral Motion on the Ailao Shan‐Red River Shear Zone

Multistage Remobilization of the Southwestern Margin of the South China Plate: Insights From Zircon U‐Pb Geochronology and Hf Isotope of Granitic Rocks From the Yao Shan Complex, Southeastern Tibet Plateau

Intra-continental transpression and gneiss doming in an obliquely convergent regime in SE Asia

Contact Info

Product

Resources

About