S-type granite from the Gongpoquan arc in the Beishan Orogenic Collage, southern Altaids: Implications for the tectonic transition

Wang, Xinyu; Yuan, Chao; Zhang, Yunying; Long, Xiaoping; Sun, Min; Wang, Lixing; Soldner, Jérémie; Lin, Zhengfan

doi:10.1016/j.jseaes.2017.07.037

Cited by 35 publications

(13 citation statements)

References 71 publications

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“…Due to the northward subduction of the Hongliuhe-Xichangjing Ocean (Song et al, 2013b(Song et al, , 2014Hu et al, 2015;Yuan et al, 2018), the metasandstones of the accretionary complex reflect the basement properties of the Minshui-Hanshan Block, the age characteristics for the sample (4442-1) are shown to include two main peaks at c. 1186 Ma and 1287 Ma with several minor peaks at c. 606 Ma, 749 Ma, 968 Ma, 1476 Ma (Fig. 7e).…”

Section: Plate Segmentation Significance Of the Hxombmentioning

confidence: 93%

“…Previous studies mainly focused on the age and geochemistry of the ophiolites, magmatism, metamorphism and Precambrian rocks (Hu et al, 2006(Hu et al, , 2010Li et al, 2009Li et al, , 2011Mao et al, 2012a, b;Song et al, 2013a, b;Ye et al, 2013;Guo et al, 2014Guo et al, , 2017Yuan et al, 2015;Liu et al, 2015;Yang et al, 2016;He et al, 2018;Wang et al, 2018Wang et al, , 2019Zhao et al, 2018b;, but little attention was paid to the age and provenance of the siliciclastic rocks in the Beishan orogenic belt. This seriously affects our ability to understand the evolution of the Paleo-Asian Ocean and the process of ocean-continent transition.…”

Section: Introductionmentioning

confidence: 99%

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The Tectonic Implications of the Hongliuhe‐Xichangjing Ophiolitic Mélanges Belt in the Central Region of the Beishan Orogen, NW China — Constrained by the U‐Pb Ages of Detrital Zircons of the Metasandstones

Jian

Xin

Teng

et al. 2020

Acta Geologica Sinica (Eng)

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The tectonic attributes of different blocks within orogenic belts are of great significance for the study of accretionary processes and the evolution of Earth. The Hongliuhe‐Niujianzi‐Baiyunshan‐Xichangjing ophiolitic mélange belt (HXOMB) is distributed in the heart of the Beishan Orogen, the Shuangyingshan and Minshui‐Hanshan blocks being distributed in the south and north of the HXOMB respectively, and a large number of Early Paleozoic geological units are exposed on the blocks. According to the zircon age populations of the metasandstones in the Baiyunshan area recovered in this paper, when compared with the zircon age populations of the Paleozoic metasandstones reported in the Niujuanzi and Hanshan areas, we found that the metasandstones of the Shuangyingshan Block have age peaks at c. 598 Ma, 742 Ma, 828 Ma, 941 Ma, 990 Ma, 1168Ma, 1636 Ma, 2497 Ma with non‐significant age populations of 1500–1300 Ma, showing a possible affinity with the Tarim Craton; the metasandstones of the Minshui‐Hanshan Block have age peaks at c. 606 Ma, 758 Ma, 914 Ma, 1102 Ma, 1194 Ma, 1304 Ma, 1672 Ma with significant age populations of 1500‐1300 Ma, showing a possible affinity with the Chinese Central Tianshan Block. Therefore, the HXOMB of the Beishan Orogen is of great significance in plate segmentation, which separates the Tarim Craton in the south and the Chinese Central Tianshan Block in the north. Based on the evolutionary process of the Hongliuhe‐Xichangjing ocean in the Beishan Orogen, we believe that break‐up and convergence can be recognized as having occurred twice between the Chinese Central Tianshan Block and the Tarim Craton since the Mesoproterozoic in the Beishan area. This was related firstly to the break‐up of the Columbia Supercontinent and the convergence of the Rodinia Supercontinent, mainly during the Middle Mesoproterozoic to Early Neoproterozoic, and secondly to the opening and closing of the Hongliuhe‐Xichangjing ocean, mainly during the Early Paleozoic.

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Section: Plate Segmentation Significance Of the Hxombmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

The Tectonic Implications of the Hongliuhe‐Xichangjing Ophiolitic Mélanges Belt in the Central Region of the Beishan Orogen, NW China — Constrained by the U‐Pb Ages of Detrital Zircons of the Metasandstones

Jian

Xin

Teng

et al. 2020

Acta Geologica Sinica (Eng)

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“…The Gongpoquan Arc to the north of the HNMX ophiolitic mélange comprises Ordovician-Silurian rhyolite, rhyolitic volcanic breccia, altered andesite, feldspathic sandstone, quartzite, schist and marble, containing Silurian conodonts such as Amarphgnathrs sp., A. amorphognthiform, A. holodontiform, A. tetraprioniodiform, Parathlgnathusobesus and Spathognathodusprimus (Zuo et al 1994). Recently, more and more published isotopic age data indicate that the northern Gongpoquan arc formed during Ordovician -Middle Devonian time (Song et al 2013b(Song et al , 2014(Song et al , 2015Wang et al 2016Wang et al , 2018b, and this arc was the product of the northwards subduction of the Palaeo-ocean (Ao et al 2012;Song et al 2014Song et al , 2015. Further south, the Shuangyingshan-Huaniushan Arc developed to the south of the HNMX ophiolitic mélange.…”

Section: Geological Backgroundmentioning

confidence: 98%

“…The emplacement of the northern Lebaquan complex, the product of N-dipping subduction and other events within the Mazongshan complex during Ordovicianlate Silurian time (Song et al 2015), suggests that intra-ocean subduction continued until at least Middle Ordovician time (Ao et al 2012). (3) Magmatic activity peaked during Late Ordovicianlate Silurian time (Zuo et al 1994;Xiao et al 2010c;Mao et al 2012;Song et al 2014;Ding et al 2015;Wang et al 2018b;Zheng et al 2019). With continuous N-wards subduction of the Palaeo-Asian Ocean, andesites and basalt-andesiterhyolite-quartz-trachyte-trachy basalts were extruded in the Gongpoquan subduction-generated arc (Wang et al 2016(Wang et al , 2018bZheng et al 2019).…”

Section: C Implications and Tectonic Evolutionmentioning

confidence: 99%

“…(3) Magmatic activity peaked during Late Ordovicianlate Silurian time (Zuo et al 1994;Xiao et al 2010c;Mao et al 2012;Song et al 2014;Ding et al 2015;Wang et al 2018b;Zheng et al 2019). With continuous N-wards subduction of the Palaeo-Asian Ocean, andesites and basalt-andesiterhyolite-quartz-trachyte-trachy basalts were extruded in the Gongpoquan subduction-generated arc (Wang et al 2016(Wang et al , 2018bZheng et al 2019). Our chemical and age data suggest that the Mazongshan complex formed in a back-arc basin that began to shrink as a result of the N-wards subduction of the Niujuanzi Ocean or Palaeo-Asian Ocean during Late Ordovicianearly Carboniferous time.…”

Section: C Implications and Tectonic Evolutionmentioning

confidence: 99%

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A mid-Palaeozoic ocean–continent transition in the Mazongshan subduction–accretion complex, Beishan, NW China: new structural, chemical and age data constrain the petrogenesis and tectonic evolution

et al. 2020

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Accretionary orogens contain key evidence for the conversion of oceanic to continental crust. The late tectonic history and closure time of the Palaeo-Asian Ocean are recorded in the Mazongshan subduction–accretion complex in the southern Beishan margin of the Central Asian Orogenic Belt. We present new data on the structure, petrology, geochemistry and zircon U–Pb isotope ages of the Mazongshan subduction–accretion complex, which is a tectonic mélange with a block-in-matrix structure. The blocks are of serpentinized peridotite, basalt, gabbro, basaltic andesite, chert and seamount sediments within a matrix that is mainly composed of fore-arc-trench turbidites. U–Pb zircon ages of two gabbros are 454.6 ± 2.5 Ma and 434.1 ± 3.6 Ma, an andesite has a U–Pb zircon age of 451.3 ± 3.5 Ma and a tuffaceous slate has the youngest U–Pb zircon age of 353.6 ± 5.1 Ma. These new isotopic ages, combined with published data on ophiolitic mélanges from central Beishan, indicate that the subduction–accretion of Beishan in the southernmost Central Asian Orogenic Belt lasted until Late Ordovician – Early Carboniferous time. Structure and age data demonstrate that the younging direction of accretion was southwards and that the subduction zone dipped continuously to the north. Accordingly, these results record the conversion of oceanic to continental crust in the southern Beishan accretionary collage.

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Geochronology and geochemistry of granodiorite at Jinwozi Au deposit: Tectonomagmatic evolution for Palaeozoic Beishan Orogen (Central Asian Orogenic Belt) in NW China

Zhang

Wang

et al. 2020

Geological Journal

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The Beishan Orogen (southern Central Asian Orogenic Belt) contains many Palaeozoic gold ore-hosting intrusions, whose age, petrogenesis and tectonic setting are yet to be well understood. In the Mazongshan arc of the Beishan Orogen, the Jinwozi granodiorite contains high K 2 O (2.71-5.69 wt%), A/CNK (1.10-1.49) and 10000Ga/Al (mostly >2.6), and has high Nb (15-21 ppm), Zr (337-451 ppm) and light rare earth element contents (ΣLREE = 207-257 ppm), but low Sr (92-208 ppm) and negative Eu anomalies (δEu = 0.55-0.70), with calculated Zr saturation temperature of 910-860 C. They exhibit typical features of peraluminous A-type granites formed in subduction-related settings. The rocks have high large-ion lithophile element and Hf contents, but low contents in certain high-field-strength elements. In addition, the zircon ε Hf (t) values (−3.6 to −0.1) indicate partial melting of the crust, while the two-stage model ages (T DM2 = 1385 to 1611 Ma) and several Palaeozoic magmatic rocks with Mesoproterozoic-inherited zircon suggest the occurrence of Mesoproterozoic crustal accretion. The ore-hosting granodiorite pluton at the Jinwozi Au deposit was LA-ICP-MS zircon U-Pb dated to be Silurian (ca. 428-422 Ma), older than the previously suggested Late Palaeozoic ages and before the interpreted amalgamation timing of the Beishan Orogen. We propose that the Jinwozi granodiorite is derived from pre-existing crustal material recycling.

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S-type granite from the Gongpoquan arc in the Beishan Orogenic Collage, southern Altaids: Implications for the tectonic transition

Cited by 35 publications

References 71 publications

The Tectonic Implications of the Hongliuhe‐Xichangjing Ophiolitic Mélanges Belt in the Central Region of the Beishan Orogen, NW China — Constrained by the U‐Pb Ages of Detrital Zircons of the Metasandstones

The Tectonic Implications of the Hongliuhe‐Xichangjing Ophiolitic Mélanges Belt in the Central Region of the Beishan Orogen, NW China — Constrained by the U‐Pb Ages of Detrital Zircons of the Metasandstones

A mid-Palaeozoic ocean–continent transition in the Mazongshan subduction–accretion complex, Beishan, NW China: new structural, chemical and age data constrain the petrogenesis and tectonic evolution

Geochronology and geochemistry of granodiorite at Jinwozi Au deposit: Tectonomagmatic evolution for Palaeozoic Beishan Orogen (Central Asian Orogenic Belt) in NW China

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