Phanerozoic granitoids in the central and eastern parts of Central Asia and their tectonic significance

Wang, Tao; Tong, Ying; Zhang, Lei; Li, Shan; Huang, He; Zhang, Jianjun; Guo, Lei; Yang, Qiang; Hong, Deshun; Donskaya, T. V.; Гладкочуб, Д.П.; Narantsetseg, Tserendash

doi:10.1016/j.jseaes.2017.06.029

Cited by 89 publications

(51 citation statements)

References 229 publications

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“…There is no clear time gap between granitoid emplacement and the eruption of volcanic rocks produced during this time period, which is consistent with Late Mesozoic magmatism in the GXR as a whole and may be the result of different stages of this phase of igneous activity (Figure ). Our interpretation is different from those of Xu et al () and Wang, Tong, et al () who believe that Late Mesozoic volcanism in NE China and the NE CAOB can be subdivided into several episodes.…”

Section: Discussioncontrasting

confidence: 99%

“…There is no clear time gap between granitoid emplacement and the eruption of volcanic rocks produced during this time period, which is consistent with Late Mesozoic magmatism in the GXR as a whole and may be the result of different stages of this phase of igneous activity (Figure 7). Our interpretation is different from those of Xu et al (2013) and Wang, Tong, et al (2017) Figure 5p). Moreover, our age data suggest that crystallization of Late Mesozoic volcanic rocks in the GXR can be subdivided into two clusters: Late Jurassic-initial Early Cretaceous and late Early Cretaceous (Figure 5o), implying that these volcanic events probably represent different geodynamic settings.…”

Section: Geochronological Framework For Mesozoic Volcanism In the Cgxrcontrasting

confidence: 99%

“…Emplacement of Early–Middle Jurassic calc‐alkaline igneous rocks along the Jiamusi and Khanka blocks was controlled by onset of the northwest subduction of the PP oceanic plate (Wang, Tong, et al, ; Xu et al, ; Yu, Wang, Xu, Gao, & Pei, ). Middle Jurassic adakitic rocks on the Korean Peninsula have an affinity with the active continental margin setting associated with the subduction of the PP oceanic plate (Tang, Xu, et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…The CGXR is mainly composed of the XB (Figure b). Lithostratigraphic units of the XB have been identified as (1) the Xilin Gol Complex in the southern GXR (1,026–1,005 Ma; Ge et al, ; Li et al, ); (2) a so‐called Precambrian basement suggested by recent studies in the northern‐central GXR (e.g., Xinkailing Group, Luomahu Group, and Fengshuigou Group; HBGMR, ; Sun et al, ), which formed during the Early Palaeozoic–Early Mesozoic (Miao et al, , ; Xu, Xu, Wang, & Gao, ) and is separated by the EB (Feng et al, ); (3) a discontinuous Early Palaeozoic metamorphosed volcanic‐sedimentary sequence with island arc Cu–Mo mineralization affinity, identified in the northern GXR (Chen, Zhang, et al, ; HBGMR, ; Wang, Tong, et al, ); (4) Early Palaeozoic strata associated with marine sediments and Late Palaeozoic–Early Mesozoic strata consisting of marine and marine‐continental facies sediments such as the Permian Dashizhai, Zhesi, and Linxi formations and the Early Triassic Laolongtou Formation (IMBGMR, ); and (5) voluminous Mesozoic igneous rocks and a Mo–Cu–Pb–Zn metallogenic belt distributed across the CGXR (Ge, Wu, Zhou, & Zhang, ; HBGMR, ; Wu et al, ; Zhai et al, ; Zhang, Wu, Wan, & Chen, ; Zhou, Zeng, Chu, Zhou, & Yang, , in press). Lithostratigraphic units of group (5) are the focus of this study.…”

Section: Geological Settingmentioning

confidence: 99%

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Timing and evolution of Mesozoic volcanism in the central Great Xing'an Range, northeastern China

et al. 2018

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In this paper, we report on LA‐ICP‐MS zircon U–Pb dates of 14 Mesozoic volcanic rocks from the central Great Xing'an Range (CGXR). These data are integrated with the temporal and spatial distribution of local magmatism‐related Mesozoic mineralization, in an effort to develop an understanding of the geodynamic evolution of the region. Periodic magmatic events in the GXR date from ~1,703 through ~145 Ma. Mesozoic volcanism in the CGXR can be subdivided into three episodes: Triassic (250–205 Ma), Early–Middle Jurassic (182–165 Ma), and Late Jurassic–Early Cretaceous (155–115 Ma). A revision of the previously defined volcanic sequence is offered using a combination of our zircon U–Pb ages and published Mesozoic geological and geophysical evidence from northeast China. We propose that (a) Early–Middle Triassic volcanism in the CGXR resulted from subduction of the Paleo‐Asian oceanic plate; (b) Late Triassic volcanism was related to subduction of the Mongol–Okhotsk oceanic plate (especially near the Erguna Block) and subsequent extension after the closure of the Paleo‐Asian Ocean; (c) Early–Middle Jurassic volcanism was mainly controlled by the southward subduction of the Mongol–Okhotsk oceanic plate; (d) Late Jurassic–initial Early Cretaceous magmatism was initiated by closure of the Mongol–Okhotsk Ocean; and (e) late Early Cretaceous volcanism was induced following the final closure of the Mongol–Okhotsk Ocean and rollback of the Paleo‐Pacific oceanic plate.

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Section: Discussioncontrasting

confidence: 99%

“…There is no clear time gap between granitoid emplacement and the eruption of volcanic rocks produced during this time period, which is consistent with Late Mesozoic magmatism in the GXR as a whole and may be the result of different stages of this phase of igneous activity (Figure 7). Our interpretation is different from those of Xu et al (2013) and Wang, Tong, et al (2017) Figure 5p). Moreover, our age data suggest that crystallization of Late Mesozoic volcanic rocks in the GXR can be subdivided into two clusters: Late Jurassic-initial Early Cretaceous and late Early Cretaceous (Figure 5o), implying that these volcanic events probably represent different geodynamic settings.…”

Section: Geochronological Framework For Mesozoic Volcanism In the Cgxrcontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

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Timing and evolution of Mesozoic volcanism in the central Great Xing'an Range, northeastern China

et al. 2018

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“…In the NTS, Early Triassic (252–229 Ma) igneous intrusions were reported in the Harlik mountains, north‐east of the Turpan‐Hami basin (Greene et al, ; Xu et al, ), as well as in the eastern CTS (246–233 Ma) to the south (Li et al, ; Zhang et al, ). Some early Mesozoic granitoids (246–233 Ma) also occur in the Beishan area and in central Inner Mongolia, which are located far to the east (see Wang, Tong, et al () for a review). However, sedimentary analysis suggests that the Early Cretaceous palaeo‐currents were southeastwards or southwards (Figure b), indicating that sediments were derived from the north or north‐west of the basin rather than the south or east.…”

Section: Interpretation Of Provenance Changesmentioning

confidence: 99%

Detrital zircon geochronology analysis of the Late Mesozoic deposition in the Turpan‐Hami basin: Implications for the uplift history of the Eastern Tian Shan, north‐western China

et al. 2019

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Analysing the provenance changes of synorogenic sediments in the Turpan‐Hami basin by detrital zircon geochronology is an efficient tool to examine the uplift and erosion history of the easternmost Tian Shan. We present detrital zircon U‐Pb analysis from nine samples that were collected within marginal lacustrine Middle‐Late Jurassic and aeolian‐fluvial Early Cretaceous strata in the basin. Middle‐Early Jurassic (159–172 Ma) zircons deriving from the southern Junggar dominated the Middle Jurassic sample from the western Turpan‐Hami basin, whereas Permian‐Carboniferous (270–330 Ma) zircons from the Bogda mountains were dominant in the Late Jurassic to Early Cretaceous samples. Devonian‐Silurian (400–420 Ma) and Triassic (235–259 Ma) zircons from the Jueluotage and Harlik mountains constituted the subordinate age groups in the Late Jurassic and Early Cretaceous samples from the eastern basin respectively. These provenance transitions provide evidence for uplift of the Bogda mountains in the Late Jurassic and the Harlik mountains since the Early Cretaceous.

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Petrogenesis and tectonic implications of Early Cretaceous volcanic rocks from the Shanghulin Basin within the north‐western Great Xing'an Range, NE China: Constraints from geochronology and geochemistry

et al. 2019

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This study presents new zircon U-Pb ages, Sr-Nd-Hf isotopic data, and whole-rock geochemical data obtained from the Early Cretaceous volcanic rocks from the north-western Great Xing'an Range, Northeast China, to constrain the late Mesozoic magmatism and geodynamic setting of this region, which is located in the eastern segment of the Central Asian Orogenic Belt (CAOB). Zircon U-Pb age determinations show that the studied samples formed at 124-114 Ma with an Early Cretaceous magmatic event produced voluminous felsic and minor mafic volcanic rocks. The mafic rocks are dominantly basalt and basaltic andesite, with relatively low SiO 2 contents (49.88-56.64 wt.%). These rocks are enriched in Th, U, large-ion lithophile elements (LILE; e.g., Rb, Ba, and K) and light rare-earth elements (REEs), and depleted in highfield-strength elements (HFSE; e.g., Nb, Ta, and Ti) and heavy REEs (Yb and Lu).The rocks have εNd(t) values of 0.44-0.75 and initial 87 Sr/ 86 Sr ratio of 0.70499-0.70548. These results indicate that the mafic rocks were derived from the partial melting of enriched lithospheric mantle that had been previously metasomatized by subduction-related fluids and experienced variable amounts of fractional crystallization and moderate crustal contamination. In contrast to the mafic rocks, the felsic rocks are dominantly peraluminous trachytes, rhyolites, and dacites with high SiO 2 contents and low MgO contents. These felsic rocks display enriched and variable concentrations of LILEs and REEs, show negative Eu anomalies, and have ε Hf (t) values of +2.6 to +8.3 with T DM2 ages of 1,014-655 Ma, indicating they were derived from partial melting of juvenile crustal materials. These Early Cretaceous igneous rock assemblages record a post-collisional lithospheric extensional setting resulting from the closure of the Mongol-Okhotsk Ocean, consistent with the results of previous studies on the contemporaneous tectono-magmatic activities in NE China.

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Phanerozoic granitoids in the central and eastern parts of Central Asia and their tectonic significance

Cited by 89 publications

References 229 publications

Timing and evolution of Mesozoic volcanism in the central Great Xing'an Range, northeastern China

Timing and evolution of Mesozoic volcanism in the central Great Xing'an Range, northeastern China

Detrital zircon geochronology analysis of the Late Mesozoic deposition in the Turpan‐Hami basin: Implications for the uplift history of the Eastern Tian Shan, north‐western China

Petrogenesis and tectonic implications of Early Cretaceous volcanic rocks from the Shanghulin Basin within the north‐western Great Xing'an Range, NE China: Constraints from geochronology and geochemistry

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