Detrital zircon geochronology of middle Paleozoic to lower Mesozoic strata from Hainan: implications for sedimentary provenance and tectonic evolution of Hainan

Xu, Zhong-Jie; Xu, Zhongjie; Cheng, Rihui

doi:10.1007/s00531-022-02221-1

Cited by 4 publications

(6 citation statements)

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“…This also demonstrates sharp increase in the age of the detrital zircons in the Lingwen Formation during the Late Palaeozoic to Early Mesozoic, with relatively low content of detrital zircons in other age stages. The detrital zircons in the samples were euhedral–subhedral and almost all displayed the characteristics of magmatic zircons, indicating that the source rocks of the Lingwen Formation are mainly Late Palaeozoic to Early Mesozoic igneous rocks and that the ages of the zircons are consistent with the time of the Late Palaeozoic to Early Mesozoic magmatic events in the Palaeo‐Tethys tectonic domain (Chen et al, 2014; Gao, Shi, et al, 2022; Kong, Xu, & Cheng, 2022; Liu et al, 2015; Tang, 2010; Zhang et al, 2019).…”

Section: Discussionmentioning

confidence: 91%

“…However, detrital zircons aged 750–1000 Ma were present in the SCB (Liu, Hu, Chen, et al, 2021; Wang et al, 2019; Wang, Wen, et al, 2018; Zhou, Liang, Liang, Jiang, Wang, et al, 2015b), indicating that the surrounding SCB and Yangtze Craton were the source areas for Hainan Island during this period. Plutons with ages of 541–766 Ma are not exposed in the SCB, and several magmatic rocks formed during this period are exposed in the Pinjarra Orogen, southwestern Australia and Eastern Gondwana (Kong, Xu, & Cheng, 2022; Markwitz et al, 2017; Olierock et al, 2019). During the Ordovician–Silurian period, Hainan Island was connected to Sibumasu on the western edge of Australia owing to the closure of the Proto‐Tethys Ocean.…”

Section: Discussionmentioning

confidence: 99%

“…Geotectonic unit division model of Hainan Island (a) according to Long et al, 2022; (b) according to Tang, 2010; (c) according to Liu et al, 2006; (d) according to Kong, Xu, & Cheng, 2022; Liu, Hu, Chen, et al, 2021; Liu, Hu, et al, 2022.…”

Section: Discussionmentioning

confidence: 99%

“…Simplified geological map of Hainan Island (revised after Bureau of Geology and Mineral Resources of Guangdong Province (BGMRGP), 1988; Gao, Shi, et al, 2022; Kong, Xu, & Cheng, 2022). BSF, Baisha Fault; CQF, Changjiang–Qionghai Fault; GZF, Gezhen Fault; JDF, Jianfeng–Diaoluo Fault; JLF, Jiusuo–Lingshui Fault; WWF, Wangwu–Wenjiao Fault.…”

Section: Geological Settingmentioning

confidence: 99%

“…250 Ma) (Li et al, 2005; Liu, Hu, Chen, et al, 2021; Owada et al, 2007; Peng et al, 2004; Yun et al, 2004; Zhang et al, 2011), their opinions on the collision and amalgamation methods of the Hainan terranes during this period continue to differ. A few scholars believe that it was controlled by the subduction of the IB from south to north (Wang, Zhong, et al, 2018; Yan et al, 2017), whereas others believe that it was controlled by the subduction of the SCB from north to south (Halpin et al, 2016; Kong, Xu, & Cheng, 2022; Liu, Hu, et al, 2022; Liu, Hu, Chen, et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Closing of the east Palaeo‐Tethys Ocean: Source–sink records from Middle Triassic sediments, Hainan Island, China

Gao,

Xu,

Kong

et al. 2024

Geological Journal

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During the Late Palaeozoic to Early Mesozoic, the eastern segment of the Palaeo–Tethys Ocean closed, resulting in the collision and amalgamation of the South and North Hainan Islands. However, the exact location of the collision and amalgamation remains controversial. The main collision locations are the Baisha, Jiusuo–Lingshui and Changjiang–Qionghai faults. The U–Pb age of detrital zircons was used to determine the main source area of the Middle Triassic basin in the eastern part of Hainan Island and the closed position of the eastern section of the Palaeo‐Tethys Ocean. The U–Pb dating of detrital zircons revealed that the Middle Triassic Lingwen Formation contains four age groups: 235–258, 335–446, 766–986 and >1000 Ma. Notably, rock masses aged 248–252 Ma that were formed in a post‐orogenic tension setting have been identified in the western region of Hainan Island, whereas no igneous rocks from this period have been discovered in the eastern region. The detrital zircon samples from the Lingwen Formation revealed a peak at 249 ± 2 Ma U–Pb age, which is important evidence indicating that the Changjiang–Qionghai Fault is the product of collision between the southern and northern Hainan terranes. Affected by the bipolar subduction of the eastern segment of the Palaeo‐Tethys Ocean, the collision and amalgamation of the South and North Hainan terranes occurred, and experienced a post‐collision (extensional) process at ca. 249 ± 2 Ma.

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Closing of the east Palaeo‐Tethys Ocean: Source–sink records from Middle Triassic sediments, Hainan Island, China

Gao,

Xu,

Kong

et al. 2024

Geological Journal

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Geochemistry of the Late Cretaceous to Paleogene sedimentary deposits of the SW Anambra Basin (Nigeria): Implications for provenance, tectonic conditions, and hydrothermal influence

Omietimi,

Lenhardt,

Yang

et al. 2024

Journal of African Earth Sciences

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The affinity of microcontinents in northern East Gondwana in the Silurian: Hainan Island response to the closure of the Proto-Tethys Ocean

Gao,

Xu,

Kong

et al. 2024

Geol. Mag.

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During the existence of Proto-Tethys Ocean (550–430 Ma), microcontinents in northern East Gondwana merged with the northern margin of India-Australia, completing the assembly of Gondwana. Ongoing controversy surrounds the disappearance of the Proto-Tethys Ocean, the dynamic mechanisms of suturing and the palaeogeographic relationships among microcontinents in northern East Gondwana, contributing to the uncertainty about the tectonic evolution of the region. This paper concerns the lower Silurian Zusailing Formation in the Hainan Island and focuses on the affinity between Hainan Island and various microcontinents in northern East Gondwana during the early Silurian. We use detrital zircon geochronology to reconstruct the closure process of the Proto-Tethys Ocean and show that the detrital zircon U–Pb age groups of the lower Silurian Zusailing Formation are 2800–2200, 2100–1350, 1250–950, 600–480 and 480–430 Ma, with a significant age peak of ca. 449 Ma. Furthermore, the analysis of detrital zircon geochemistry and europium anomalies shows that the Hainan Island crust continued to thicken during 600–434 Ma. Comparing the age spectrum of early Palaeozoic detrital zircons from Hainan Island and various microcontinents in northern East Gondwana, as well as the affinity among them during the Silurian, we conclude that the closure of the eastern Proto-Tethys Ocean evolved from unidirectional subduction (600–480 Ma) to bidirectional subduction (480–430 Ma).

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Detrital zircon geochronology of middle Paleozoic to lower Mesozoic strata from Hainan: implications for sedimentary provenance and tectonic evolution of Hainan

Cited by 4 publications

References 96 publications

Closing of the east Palaeo‐Tethys Ocean: Source–sink records from Middle Triassic sediments, Hainan Island, China

Closing of the east Palaeo‐Tethys Ocean: Source–sink records from Middle Triassic sediments, Hainan Island, China

Geochemistry of the Late Cretaceous to Paleogene sedimentary deposits of the SW Anambra Basin (Nigeria): Implications for provenance, tectonic conditions, and hydrothermal influence

The affinity of microcontinents in northern East Gondwana in the Silurian: Hainan Island response to the closure of the Proto-Tethys Ocean

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