Geochemical, Sr–Nd and zircon U–Pb–Hf isotopic studies of Late Carboniferous magmatism in the West Junggar, Xinjiang: Implications for ridge subduction?

Geng, Haifeng; Sun, Min; Yuan, Chao; Xiao, Wenjiao; Weisheng, Xian; Zhao, Guochun; Zhang, Lifei; Davidson, T.N.; Wu, Fu‐Yuan

doi:10.1016/j.chemgeo.2009.07.001

Cited by 357 publications

(301 citation statements)

References 98 publications

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“…Synthesis of geochronological data from magmatic Late Paleozoic rocks of West Junggar, after Kwon et al (1989), Jin and Shen (1993), Qi et al (1993), Shen et al (1993), Li et al (2004), Chen and Arakawa (2005), Han et al (2006), Su et al (2006), Zhou et al (2006), Song et al (2007), Wang and Zhu (2007), Zhou et al (2008), An and Zhu (2009), Geng et al (2009), Tang et al (2009) and Yin et al (2010. Table 4.…”

Section: Discussionmentioning

confidence: 99%

“…The Miaoergou, Akebastaw or Karamay plutons (Fig. 3) were emplaced between 320 and 300 Ma (Chen and Jahn, 2004;Han et al, 2006;Geng et al, 2009). Several generations of intrusive rocks characterize the dyke swarm, with high-Mg microdiorites at ca.…”

Section: Reliability and Age Of The Magnetic Remanencementioning

confidence: 99%

“…These rocks are folded, with a slaty cleavage developed in fine-grained facies. Deformation is postdated by abundant Late Paleozoic plutons (Chen and Jahn, 2004;Han et al, 2006;Geng et al, 2009) and all the sites are located within thermal aureoles. In addition, some sampling sites are located near Permian mafic dykes that belong to a large dyke swarm (XBGRM, 1966;Li et al, 2004;Qi, 1993).…”

Section: Paleomagnetic Samplingmentioning

confidence: 99%

“…This horseshoe shape corresponds to the Devonian to Carboniferous Kazakh orocline (Sengör and Natal'in, 1996;Abrajevitch et al, 2007). Post-collisional magmatic rocks cross-cut the accretionary complex (Chen and Jahn, 2004;Han et al, 2006;Geng et al, 2009) …”

Section: West Junggar Mountainsmentioning

confidence: 99%

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Late Paleozoic paleogeographic reconstruction of Western Central Asia based upon paleomagnetic data and its geodynamic implications

Choulet

Chen

Wang

et al. 2011

Journal of Asian Earth Sciences

117

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Section: Discussionmentioning

confidence: 99%

Section: Reliability and Age Of The Magnetic Remanencementioning

confidence: 99%

Section: Paleomagnetic Samplingmentioning

confidence: 99%

Section: West Junggar Mountainsmentioning

confidence: 99%

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Late Paleozoic paleogeographic reconstruction of Western Central Asia based upon paleomagnetic data and its geodynamic implications

Choulet

Chen

Wang

et al. 2011

Journal of Asian Earth Sciences

117

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“…The Early Carboniferous granite was developed in the Zhaerma, Sawuer, Taerbahatai and Sentasi districts, containing monzodiorite, granodiorite, granodiorite, two long granites and K-feldspar granite. The intrusive species were various from the Late Carboniferous to the Early Permian, and they were mainly K-feldspar granite, along with a large amount of A-type granite that developed in this period（Chen et al, 2004;Geng et al,2009;Chen et al, 2010). …”

Section: Geological Backgroundmentioning

confidence: 99%

Heavy Mineral Characteristics and Their Implication for Provenance of the Middle to Upper Triassic on the Northwest Margin of Junggar Basin, North China

He¹,

Zhang²,

Yao³

et al. 2017

ESR

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Heavy minerals are extremely sensitive indicators of provenance. Applying the methods of heavy mineral combination analysis, content distribution analysis, SPSS statistical component analysis, and correlation analysis, 18 heavy minerals are identified in the northwestern margin of the Junggar Basin (NW Junggar). According to the analysis of the heavy mineral characteristics and coefficients, 4 heavy mineral combinations are developed in the study area: Zircon-tourmaline-monazite-apatite-anatase, rutile-ilmenite-leucoxene-apatite-galenite, hematite-limonite-pyrite, and magnetite-epidote-hornblende. Previous results predicted that source rocks consist of intermediate-acidic magmatite, sedimentary rocks and metamorphic rocks, and intermediate-acidic magmatite is considered to be the main source rock. Furthermore, combined with the geological background of NW Junggar, Qier-Halaalat Mountain, which belongs to the Zaire Mountain front, is shown to be the provenance of the study area. The main sources of sediments are flesh-red granite, grey and greyish-green andesite, andesitic-porphyrite, grey and grayish-black tuff, siltstone, and sandstone of the Lower Carboniferous Tailegula Formation. Additionally, because of the high content of the angular-subangular and subangular-subrounded heavy mineral grains, these heavy minerals are both from near and distal provenance, with most being near-provenance deposits. During the process of provenance propulsion on the margin of the basin, clastics are mixed together and affected by regional dynamic metamorphism, which is probably the main reason for the existence of the metamorphic component.

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Ophiolitic mélanges in crustal-scale fault zones: Implications for the Late Palaeozoic tectonic evolution in West Junggar, China

et al. 2014

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The Baijiantan and Darbut ophiolites in West Junggar are exposed in steep fault zones (>70°) containing serpentinite mélange, in contact on either side with regionally distributed Upper Devonian-Lower Carboniferous ocean floor peperitic basalts and overlying sedimentary successions. The ophiolitic mélanges show classic structural features created by strike-slip faulting and consistent shear sense indicators of left-slip kinematics. Sandstone blocks within the mélanges resemble the surrounding sediments in lithology and age, indicating that the ophiolitic mélanges consist of locally derived rocks. The ophiolitic mélanges therefore originated from left-slip fault zones within a remnant basin and are not plate boundaries nor subduction suture zones. Sandstone is the youngest lithology involved in the mélange and provides a maximum age for the mélange of 322 Ma, whereas stitching plutons are younger than 302 Ma. Multiple clusters in zircon ages from single gabbro blocks in the mélange at~375,~360,~354, and~340 Ma are inconsistent with accretionary incorporation of subducting ocean crust but rather suggest that episodic movement of the faults provided pathways for magma from the mantle into magma chambers. Late Paleozoic tectonic evolution of West Junggar involved Late Devonian to Carboniferous relative motion between the Junggar block and West Junggar ocean basin, which triggered the left-slip fault zones within a remnant ocean basin, along which the oceanic crust was disrupted to form linear ophiolitic mélanges. Final filling of this remnant ocean basin and its dismemberment by strike-slip faulting occurred in the late Carboniferous, followed by crustal thickening by juvenile granites at the Carboniferous-Permian boundary.

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Geochemical, Sr–Nd and zircon U–Pb–Hf isotopic studies of Late Carboniferous magmatism in the West Junggar, Xinjiang: Implications for ridge subduction?

Cited by 357 publications

References 98 publications

Late Paleozoic paleogeographic reconstruction of Western Central Asia based upon paleomagnetic data and its geodynamic implications

Late Paleozoic paleogeographic reconstruction of Western Central Asia based upon paleomagnetic data and its geodynamic implications

Heavy Mineral Characteristics and Their Implication for Provenance of the Middle to Upper Triassic on the Northwest Margin of Junggar Basin, North China

Ophiolitic mélanges in crustal-scale fault zones: Implications for the Late Palaeozoic tectonic evolution in West Junggar, China

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