Middle Paleozoic archipelago amalgamation and tectonic transform in the northern West Junggar, NW China: Constraints from magmatism and deformation

Yang, Yaqi; Zhao, Lei; Zhang, Jin; Niu, Manlan

doi:10.1016/j.gr.2021.04.010

Cited by 9 publications

(7 citation statements)

References 87 publications

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“…1 km from the fossil site is 423 ± 7 Ma, and the youngest age of the detrital zircons is 422 ± 9 Ma from the pyroclastic rocks in the same strata 2 km north–northwest of the fossil site (Yang et al . 2021) (Fig. 1C).…”

Section: Discussionmentioning

confidence: 94%

“…More recently, zircon geochronology studies have determined zircon ages of the pyroclastic rocks and the granitic porphyry intruded into the strata near the fossil site of 422 and 423 Ma, respectively (Yang et al . 2021) (Fig. 1C), both of which correspond to the late Silurian.…”

Section: Methodsmentioning

confidence: 93%

“…B–C, location and geological maps of Saier Mountains in western Junggar, Xinjiang (C modified from Yang et al . 2021). D, stratigraphical column of the ‘Xiemisitai’ Formation in the Saier Mountains.…”

Section: Methodsmentioning

confidence: 99%

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Silurian freshwater arthropod from northwest China

Zong

Edgecombe

Liu

et al. 2023

Papers in Palaeontology

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Animals breaking away from the sea was a revolutionary event in the evolution of life. Arthropods were the earliest metazoans to move onto land, and although a few Silurian freshwater and/or terrestrial arthropods have been found so far, these records are all from Laurussia. Here, we describe a new freshwater arthropod, Maldybulakia saierensis sp. nov., from the western Junggar, northwest China. Evidence from co-occurring spores and body fossils of plants is presented in support of a Silurian (Pridoli) age for this new Maldybulakia species, alongside palaeosalinity data in support of our interpretation of it having lived in a freshwater environment. The discovery of this species brings forward the earliest appearance of the Maldybulakia, previously known from the Devonian of Kazakhstan and eastern Australia, to the late Silurian. It is the oldest body fossil record of a putatively freshwater arthropod outside Laurussia, and greatly expands their palaeogeographical distribution. In the middle and late Silurian, the discovery of freshwater arthropods on multiple plates/terranes, as well as their morphological diversity during this period, suggests that arthropods had left the marine environment by the early Silurian or even earlier.

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Section: Discussionmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 93%

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Silurian freshwater arthropod from northwest China

Zong

Edgecombe

Liu

et al. 2023

Papers in Palaeontology

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“…The Zharma-Saur Arc consists mainly of Devonian to early Carboniferous arc-related igneous and sedimentary rocks (Choulet et al, 2012a;Choulet et al, 2016;Choulet et al, 2012c), which were considered to have formed during southward subduction of the Erqis-Zaysan ocean (Choulet et al, 2016;Windley et al, 2007) or northward subduction of the Hongguleleng ocean (Chen et al, 2017;P. Li et al, 2017;Song et al, 2020;Xiao et al, 2008;Yang et al, 2021;Figure 1b). Junggar Ocean, Erqis-Zaysan Ocean and Hongguleleng Ocean were named by associated ophiolite or the location.…”

Section: Geological Settingmentioning

confidence: 99%

Crustal‐Scale Disharmonic Structural Pattern of West Junggar: Unveiling a Permian Indentation of Junggar Block Into Northern Kazakhstan Orocline

et al. 2023

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“…The northern margin of the Kazakhstan microcontinent is made up of the Cambrian–Silurian Boshchekul‐Chingiz arc terrane (Chen et al., 2019; Windley et al., 2007; Yang et al., 2021) and the Devonian–Early Carboniferous Zharma‐Saur arc (Deng et al., 2014; Safonova et al., 2012, 2018; Windley et al., 2007; Yin et al., 2015; Yuan et al., 2017), and the latter developed possibly on the Boshchekul‐Chingiz arc terrane (Xu, Li, et al., 2021; Yang et al., 2021). In other words, the Kazakhstan microcontinent was consolidated after the formation of the Zharma‐Saur arc.…”

Section: Geological Settingmentioning

confidence: 99%

The Serpukhovian–Bashkirian Amalgamation of Laurussia and the Siberian Continent and Implications for Assembly of Pangea

Han

Liao

et al. 2022

Tectonics

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The final assembly of Pangea is thought to be marked by the Siberia‐Laurussia amalgamation during the Late Carboniferous–Permian, but there are large uncertainties on the timing of the amalgamation in the previous paleogeographic reconstructions because there are no high‐quality Carboniferous–Permian paleomagnetic data available from the Siberian continent. The Zharma‐Saur area in the junction between the Siberia‐Laurussia amalgamation, involving the Zharma‐Saur arc on the northern margin of the Kazakhstan microcontinent, the South Chinese Altai terrane in the southern margin of the Siberian continent and the Irtysh‐Zaisan suture in between, can provide crucial geological constraints for the assembly of Pangea. In the Zharma‐Saur arc, the Tournaisian–Visean marine sequences are interbedded with thick pillow lavas, which were formed during southward subduction of the Irtysh‐Zaisan Ocean and unconformably covered by the Moscovian terrestrial bimodal volcanic associations and sedimentary successions, in which the basalts are columnar‐jointed in structure and the sandstones also contain the detritus derived from the South Chinese Altai terrane. The Serpukhovian–Bashkirian unconformity was coeval with the transition from the Tournaisian–Visean calc‐alkaline to the Moscovian–Early Permian high alkaline and bimodal volcanism. These dramatic changes in sedimentary environments, provenances and volcanism together indicate the Siberia‐Laurussia amalgamation during the Serpukhovian–Bashkirian and this event was almost simultaneous with the Laurussia‐Gondwana collision and the welding of Laurussia with the Kazakhstan microcontinent, but slightly earlier than the Laurussia‐Tarim collision. Therefore, the final assembly of Pangea could be completed in the Late Carboniferous.

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Middle Paleozoic archipelago amalgamation and tectonic transform in the northern West Junggar, NW China: Constraints from magmatism and deformation

Cited by 9 publications

References 87 publications

Silurian freshwater arthropod from northwest China

Silurian freshwater arthropod from northwest China

Crustal‐Scale Disharmonic Structural Pattern of West Junggar: Unveiling a Permian Indentation of Junggar Block Into Northern Kazakhstan Orocline

The Serpukhovian–Bashkirian Amalgamation of Laurussia and the Siberian Continent and Implications for Assembly of Pangea

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