Petrogenesis of the ca. 2.32 Ga low-δ18O gabbroic diorites and granites in the Xiaoshan area, southern North China Craton: Implications for the early Paleoproterozoic tectonic evolution

Sun, Qing; Zhao, Taiping; Zhou, Jingyan; Wu, Zhuohao; Zhou, Yanfei

doi:10.1016/j.precamres.2022.106924

Cited by 3 publications

(4 citation statements)

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“…2.3 Ga TTGs (this study), gabbros‐diorites (Q. Y. Sun et al., 2023), and A‐type granites (Y. S. Wang et al., 2022; Zhou, Sun, Zhai, & Zhao, 2021), along with the coeval ultramafic (komatiitic rocks)‐mafic‐felsic rock associations (Zhou & Zhai, 2022 and references therein), represent lithospheric thinning at 2.42–2.0 Ga, suggesting protracted the early to middle Paleoproterozoic extension on and around the craton.…”

Section: Discussionmentioning

confidence: 53%

“…2.3 Ga TTGs in this study, there are nearly coeval low-δ 18 O A-type granites and gabbro-diorites are also identified (e.g., Q. Y. Sun et al, 2023;Y. S. Wang et al, 2022;, which are inferred to be derived from recycling of high-T hydrothermally altered crustal rocks and a heterogeneous ancient subcontinental lithospheric mantle (SCLM) in an intraplate rift setting, respectively.…”

Section: Low δ 18 O and δ 30 Si Ca 23 Ga Ttg And Coeval Magmatism May...mentioning

confidence: 52%

“…The early Paleoproterozoic low‐δ 18 O TTGs and coeval low‐δ 18 O magmatism (e.g., Moreira et al., 2020; Q. Y. Sun et al., 2023; Zhou, Sun, Zhai, & Zhao, 2021) resemble the published low‐δ 18 O magmatic activities globally through time from different tectonic environments, which show that most low‐δ 18 O suites occurred during intraplate rifting or hotspots, corresponding well with the high frequency of rifting, passive margins, LIPs and the major dispersal periods of the supercontinents (Figure 4), plausibly corresponding to the supercontinent cycles (Liebmann et al., 2022; Troch et al., 2020). For instance, magmatic suites through time following this pattern include the 2.45–2.4 Ga low‐δ 18 O terrestrial silicate rocks in the Karelian rift of Russia (Bindeman et al., 2010) during the breakup of supercraton Superia (Bleeker, 2003), the 1.8–1.6 Ga low‐δ 18 O rhyolites and granites in the NCC linked to the breakup of the supercontinent Columbia (X. Q. Deng et al., 2020; Pang et al., 2021), and ca.…”

Section: Discussionmentioning

confidence: 99%

“…The early Paleoproterozoic low-δ 18 O TTGs and coeval low-δ 18 O magmatism (e.g., Moreira et al, 2020;Q. Y.…”

Section: Ca 23 Ga Ttg and Coeval Magmatism Could Relate To The Onset ...mentioning

confidence: 99%

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Low δ¹⁸O and δ³⁰Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle

Zhou,

Zhai,

Mitchell

et al. 2024

JGR Solid Earth

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The start of the Paleoproterozoic supercontinent cycle is typically taken as the initiation of orogenesis at ca. 2.1 Ga leading to the assembly of Earth's first supercontinent, Columbia. However, the dearth of ca. 2.5–2.2 Ga geological records makes it difficult to deduce tectonic factors during the onset of the Paleoproterozoic supercontinent cycle. The petrogenesis of tonalite–trondhjemite–granodiorite (TTG) provides useful proxies for tracing prevailing geodynamic regimes of early continental evolution. However, marked decreases of TTG and other magmatism occurred across the Archean–Paleoproterozoic transition and have previously precluded forming testable hypotheses. Early Paleoproterozoic TTGs have been identified in the North China Craton (NCC) and other cratons, which may represent the last major pulse of TTGs globally. Here we present low δ18O and δ30Si ca. 2.3 Ga TTGs from the NCC, together with thermodynamic modeling and compilation of stable O and Si isotopes for TTGs globally through time. The ca. 2.3 Ga TTGs were derived from the partial melting of Archean basaltic crust and give lighter average zircon δ18O (3.15 ± 0.35‰) and whole‐rock δ30Si values (−0.17 ± 0.08‰) than most Archean TTGs. Considering coeval mafic‐felsic igneous rocks, and lithospheric thinning since ca. 2.5 Ga based on estimated crustal thickness through the Neoarchean–Paleoproterozoic, we posit the onset of an intraplate rifting consistent with the anomalous low‐δ18O magmatism. Continental rifting of Archean cratons/supercratons plausibly hints at the formation of rifts driving subduction initiation as the veritable onset of the Paleoproterozoic supercontinent cycle.

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Section: Discussionmentioning

confidence: 53%

Section: Low δ 18 O and δ 30 Si Ca 23 Ga Ttg And Coeval Magmatism May...mentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

“…The early Paleoproterozoic low-δ 18 O TTGs and coeval low-δ 18 O magmatism (e.g., Moreira et al, 2020;Q. Y.…”

Section: Ca 23 Ga Ttg and Coeval Magmatism Could Relate To The Onset ...mentioning

confidence: 99%

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Low δ¹⁸O and δ³⁰Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle

Zhou,

Zhai,

Mitchell

et al. 2024

JGR Solid Earth

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Lithospheric evolution during the 2.5–2.1 Ga critical period following the Neoarchean cratonization

Zhou,

Zhong

2024

Early Continent Evolution of the North China Craton

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Zircon U-Pb Age and Hf-O Isotope Evidence of the Taihua Complex on the Southern Margin of the North China Craton: Implications for Its Magmatic Process During the Early Paleoproterozoic

Chen,

Dong,

Hui

2024

American Journal of Science

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The Xiaoqinling is the largest terrane of the Taihua Complex and records Paleoproterozoic silicic magmatism, which is one of the most potential areas for understanding secular changes in tectonic processes during the Tectono-Magmatic Lull (TML). In this study, we use zircon U–Pb dating, Lu–Hf and O isotopic analysis to constrain the age, provenance, and magmatic processes of the protoliths for the Paleoproterozoic granitic gneiss, tonalitic gneisses, and migmatitized tonalitic gneiss from the Xiaoqinling area. The isotopic composition of zircon provides a key proxy for querying the crustal record. Integration of our new U–Pb and Hf–O isotope data with available published data from other regions of the North China Craton (NCC), allows us to better assess the secular changes of the North China Craton during the magmatic lull at ∼2.3 Ga. This study shows that the protolith of the tonalitic gneisses in the study area have crust-like Hf–O isotopic compositions with slightly negative to positive εHf(t) (−3.0− +2.1) and low to moderately elevated δ18O values (2.71–7.87‰), indicating a mixed origin of continental crust assimilated by mantle-derived magmas.

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Petrogenesis of the ca. 2.32 Ga low-δ18O gabbroic diorites and granites in the Xiaoshan area, southern North China Craton: Implications for the early Paleoproterozoic tectonic evolution

Cited by 3 publications

References 167 publications

Low δ¹⁸O and δ³⁰Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle

Low δ¹⁸O and δ³⁰Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle

Lithospheric evolution during the 2.5–2.1 Ga critical period following the Neoarchean cratonization

Zircon U-Pb Age and Hf-O Isotope Evidence of the Taihua Complex on the Southern Margin of the North China Craton: Implications for Its Magmatic Process During the Early Paleoproterozoic

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Petrogenesis of the ca. 2.32 Ga low-δ18O gabbroic diorites and granites in the Xiaoshan area, southern North China Craton: Implications for the early Paleoproterozoic tectonic evolution

Cited by 3 publications

References 167 publications

Low δ18O and δ30Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle

Low δ18O and δ30Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle

Lithospheric evolution during the 2.5–2.1 Ga critical period following the Neoarchean cratonization

Zircon U-Pb Age and Hf-O Isotope Evidence of the Taihua Complex on the Southern Margin of the North China Craton: Implications for Its Magmatic Process During the Early Paleoproterozoic

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Low δ¹⁸O and δ³⁰Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle

Low δ¹⁸O and δ³⁰Si TTG at ca. 2.3 Ga Hints at an Intraplate Rifting Onset of the Paleoproterozoic Supercontinent Cycle