Geochronology and geochemistry of volcanic rocks in the Arbasay Formation, Xinjiang Province (Northwest China): implications for the tectonic evolution of the North Tianshan

Wang, Jialin; Wu, Chaodong; Li, Zhuang; Wen, Zhenhe; Chen, Yiwen; Li, Qingyun; Wu, Jun; Deng, Langjiang; Chen, Rong

doi:10.1080/00206814.2016.1185750

Cited by 25 publications

(42 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The patterns are compared with (a) North Tianshan (NTS); (b) Yili–Central Tianshan (YCTS); (c) Bogda region; and (d) mixture of NTS and YCTS. Chondrite values are after Sun and McDonough (); the data of NTS, YCTS, and Bogda are from J. L. Wang, Wu, Li, Zhu, Chen, et al (), Zhong et al (), and our unpublished data, respectively [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Resultsmentioning

confidence: 99%

“…Recently, detrital zircon U–Pb geochronology analysis reveals that the studied samples predominantly derive from the Late Carboniferous intermediate–acidic igneous rocks of NTS and YCTS (peak at 307 Ma; Figure ; J. Gao et al, ; Tang, et al, ; J. L. Wang, Wu, Li, Zhu, Chen, et al, ; J. L. Wang, Wu, Li, Zhu, Zhou, et al, ). This is consistent with the detrital zircons Hf isotopic data (ε Hf (t): −15.0 to +15.5) are overlapping with the isotopic compositions from the NTS (ε Nd (t): +4.2 to +7.8; Han et al, ; D. D. Liu, Guo, Zhang, & Wu, ).…”

Section: Discussionmentioning

confidence: 99%

“…In the K 2 O + Na 2 O–SiO 2 , La–Th–Sc, and Th–Sc–Zr/10 diagrams, most samples plotted in and around the continental island arc area with minor in the active continental margin field, indicating that the source rocks (protoliths) are most likely formed in a continental arc setting (Figure ; Bhatia & Crook, ; Pearce, ). That is, the NTS and YCTS are in a continental arc setting (J. L. Wang, Wu, Li, Zhu, Chen, et al, ; Xiao et al, ). This is consistent with the fact that the volcanic rocks of NTS and YCTS were characterized by basalt–andesite–rhyolite magma series and most of them fall into the calc‐alkaline field, which were considered to be a typical arc‐related setting (Z. Li & Chen, ; Z. Li, Chen, & Wei, ; J. L. Wang, Wu, Li, Zhu, Chen et al, ; Xiao et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Generally, the Tianshan can be subdivided into three tectonic units, namely, the North Tianshan (NTS), Yili–Central Tianshan (YCTS), and South Tianshan (Figure b; J. Gao, Li, Xiao, Tang, & He, ). The NTS formed by the southward subduction of the NTS Ocean crust during the late Palaeozoic (e.g., J. Gao et al, ; Han et al, ; J. L. Wang, Wu, Li, Zhu, Chen, et al, ; Xiao et al, ). The YCTS was a continental block with Precambrian basements and mainly formed by two magmatic belts (J. Gao et al, ).…”

Section: Geological Background and Stratigraphic Sequencesmentioning

confidence: 99%

See 3 more Smart Citations

Whole‐rock geochemistry and zircon Hf isotope of Late Carboniferous–Triassic sediments in the Bogda region, NW China: Clues for provenance and tectonic setting

Wang

et al. 2018

Geological Journal

Self Cite

View full text Add to dashboard Cite

Detailed petrological, whole‐rock geochemical, and zircon Hf isotopic researches were conducted on the Late Carboniferous–Triassic sedimentary rocks in the Bogda region to evaluate the effects of weathering, sorting, and alteration, as well as to understand their provenance and tectonic setting. These rocks show variable major element compositions, but most are generally similar to post‐Archean Australian shales. The relatively narrow range of TiO2–Zr variation and good correlation between Th/Sc and Zr/Sc signify no obvious sorting and recycling of the sedimentary rocks. The relatively high index of compositional variability (0.8–3.1) and low chemical index of alteration values (44.4–76.4) of the sedimentary rocks indicate that they are immature and probably undergo weak to moderate chemical weathering. In the chondrite‐normalized diagrams, almost all the samples are distinguished by moderately enriched light rare earth element and flat heavy rare earth element patterns with negative Eu anomalies (Eu/Eu* = 0.5–0.8). In conjunction with their Th/Sc, Zr/Sc, La/Th, Zr/Al2O3, TiO2/Zr, Co/Th, and La/Sc ratios, we infer that the major sources of these sedimentary rocks were the intermediate–acidic igneous rocks from the North Tianshan and Yili–Central Tianshan. Combining the orientation of the Bogda region in the Palaeozoic that was roughly perpendicular to the Tianshan and/or East Junggar orogens with the sedimentologic, petrologic, and tectonic researches, we suggest that the Bogda region was a rift basin that occurs at high angles to the orogenic belt. On the other hand, the zircons from these sediments have minor Precambrian grains (<0.2%), positive εHf(t) values (mostly +7.1–+15.0) and young 2‐stage Hf model ages (major peak <1,000 Ma), suggesting that a juvenile continental crust exists as the basement of the Junggar Basin.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Geological Background and Stratigraphic Sequencesmentioning

confidence: 99%

See 2 more Smart Citations

Whole‐rock geochemistry and zircon Hf isotope of Late Carboniferous–Triassic sediments in the Bogda region, NW China: Clues for provenance and tectonic setting

Wang

et al. 2018

Geological Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…The widespread late Carboniferous-early Permian magmatism might have been related to a ridge subduction accompanied by slab rollback of the subducting plate of the North Tianshan Ocean. Wang et al (2017) present field-based mapping, petrography, and zircon U-Pb dates, as well as whole-rock geochemical data for late Carboniferous volcanic and volcaniclastic successions of the Arbasay Formation along the northern margin of the North Tianshan. UPb isotopic dating reveals that the volcanic rocks in the Arbasay Formation formed at 308-305 Ma, rather than early Permian as previously proposed.…”

Section: Introductionmentioning

confidence: 99%

Tectonics, magmatism, and mineralization of Circum–Balkash–Junggar area in the Central Asian Orogenic Belt

Xiao

Shen

Chen

2017

International Geology Review

View full text Add to dashboard Cite

A new Carboniferous–Permian intra‐oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids

et al. 2020

View full text Add to dashboard Cite

The North Tianshan in NW China is a key to understanding the accretionary history of the southern Altaids. However, the tectonic setting of the North Tianshan in the Carboniferous‐Permian is debatable, and its amalgamation history is ambiguous. We report new data on the field relations, geochronology and geochemistry of Carboniferous–Jurassic volcanic rocks and sedimentary rocks from the Shichang area in order to constrain the late Palaeozoic–Early Mesozoic tectonic evolution of the North Tianshan. New LA‐ICP‐MS zircon U–Pb dates demonstrate that the Carboniferous–Permian stratigraphy is a tectonic imbrication of Carboniferous–Permian rocks and Carboniferous volcanic rocks were emplaced in Permian volcano‐sedimentary rocks. The 311 ± 2 Ma volcanic rocks are calc‐alkaline, enriched in Light Rare Earth Elements and large‐ion lithophile elements, depleted in high‐field‐strength elements, and have low initial 87Sr/86Sr ratios with positive εNd(t)(+0.3 to +8.6)values. The geochemical‐isotopic data suggest the volcanic rocks were generated in an intra‐oceanic island arc. The turbidite samples 18SC02 (~267 Ma to ~349 Ma) and 18SC09 (~299 Ma to ~369 Ma) have a relatively narrow age range with no Devonian or Precambrian peaks. Our detrital zircon data suggest the presence of a so far unrecognized intra‐oceanic arc, which was isolated from the main Yili‐Central Tianshan and Mosuowan arcs in the Shichang area of the North Tianshan during the Late Carboniferous to Permian. The compiled detrital zircon data from Carboniferous to Jurassic indicates that the North Tianshan intra‐oceanic arc was probably amalgamated with the Mosuowan arc by the Early Triassic, and then accreted to the Yili‐Central Tianshan arc by the Middle‐Late Triassic, as revealed by the changes of zircon provenance of Carboniferous, Permian, Triassic and Jurassic sedimentary rocks. All integrated data suggest that the southern Altaids most likely formed by processes of multiple subduction–accretion and convergence similar to that in the ongoing southwest Pacific.

show abstract

Geochronology and geochemistry of volcanic rocks in the Arbasay Formation, Xinjiang Province (Northwest China): implications for the tectonic evolution of the North Tianshan

Cited by 25 publications

References 73 publications

Whole‐rock geochemistry and zircon Hf isotope of Late Carboniferous–Triassic sediments in the Bogda region, NW China: Clues for provenance and tectonic setting

Whole‐rock geochemistry and zircon Hf isotope of Late Carboniferous–Triassic sediments in the Bogda region, NW China: Clues for provenance and tectonic setting

Tectonics, magmatism, and mineralization of Circum–Balkash–Junggar area in the Central Asian Orogenic Belt

A new Carboniferous–Permian intra‐oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids

Contact Info

Product

Resources

About