3.45 Ga granitic gneisses from the Yangtze Craton, South China: Implications for Early Archean crustal growth

Guo, Jingliang; Gao, Shan; Wu, Yuan–Bao; Li, Ming; Chen, Kang; Hu, Zhaochu; Liang, Zhengwei; Liu, Yongsheng; Zhou, Lian; Zong, Keqing; Wen, Zhang; Chen, Haihong

doi:10.1016/j.precamres.2013.12.018

Cited by 264 publications

(100 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous studies of Hf isotopes in zircons from the magmatic and basement metamorphic rocks in the Yangtze block have revealed three main episodes of crustal growth at 3.8-3.6, 2.6-2.5, and 1.2-0.8 Ga ( Fig. 12; Grimmer et al, 2003;Guo et al, 2014;Tang et al, 2012;Zhang and Zheng, 2013) Wu et al, 2006). The variations the ε Hf (t) values of zircons from the mafic enclaves are consistent with those of the crustal material that have been reworked from 3.8 to 3.6, 2.6-2.5, and 1.2-0.8 Ga crustal material (Fig.…”

Section: First-stage High-k Calc-alkaline Intrusionsmentioning

confidence: 95%

“…The oldest known basement of the Yangtze block is the Kongling Group, with zircon ages older than 3.3 Ga (Qiu et al, 2000) and zircon Hf model ages of~3.8 Ga (Guo et al, 2014;Zhang and Zheng, 2013), which suggests that the Yangtze block may have contained continental crust as old as 3.8 Ga. Previous studies of Hf isotopes in zircons from the magmatic and basement metamorphic rocks in the Yangtze block have revealed three main episodes of crustal growth at 3.8-3.6, 2.6-2.5, and 1.2-0.8 Ga ( Fig.…”

Section: First-stage High-k Calc-alkaline Intrusionsmentioning

confidence: 99%

“…The inherited zircons in the enclaves only give Neoproterozoic ages, clearly indicating the contribution of Neoproterozoic material in the mixed magmas. Nevertheless, Archean crust may also be in the source of the mixed magmas, because many zircons that crystallized in the Cretaceous rocks have ε Hf (t) values as low as − 30 to − 40, corresponding to the reworking of Archean crust (Guo et al, 2014;Hu et al, 2013;Zhang et al, 2006) (Fig. 12).…”

Section: First-stage High-k Calc-alkaline Intrusionsmentioning

confidence: 99%

See 2 more Smart Citations

In situ zircon Hf–O isotopic analyses of late Mesozoic magmatic rocks in the Lower Yangtze River Belt, central eastern China: Implications for petrogenesis and geodynamic evolution

Yan

Liu

et al. 2015

Lithos

124

View full text Add to dashboard Cite

Section: First-stage High-k Calc-alkaline Intrusionsmentioning

confidence: 95%

Section: First-stage High-k Calc-alkaline Intrusionsmentioning

confidence: 99%

Section: First-stage High-k Calc-alkaline Intrusionsmentioning

confidence: 99%

See 1 more Smart Citation

In situ zircon Hf–O isotopic analyses of late Mesozoic magmatic rocks in the Lower Yangtze River Belt, central eastern China: Implications for petrogenesis and geodynamic evolution

Yan

Liu

et al. 2015

Lithos

124

View full text Add to dashboard Cite

“…3.8-3.5 Ga and ca.2.9-2.7 Ga, respectively (Zhang SB et al 2006a, b;Guo JL et al, 2014). These were modified by a collisional convergence at ca.…”

Section: (4) Huangling Plutonsmentioning

confidence: 99%

“…2.0 Ga and post-collisional extension during ca. 1.85-1.78 Ga, related to the assembly and breakup of the supercontinent Columbia, respectively (Zhang SB et al 2006b;Yin CQ et al 2013;Li L et al 2014). …”

Section: (4) Huangling Plutonsmentioning

confidence: 99%

Tectonic architecture and multiple orogeny of the Qinling Orogenic Belt, Central China

2016

View full text Add to dashboard Cite

Provenance, depositional setting, and crustal evolution of the Cathaysia Block, South China: Insights from detrital zircon U–Pb geochronology and geochemistry of clastic rocks

et al. 2018

View full text Add to dashboard Cite

We report the results of a combined study of detrital zircon U–Pb geochronology and bulk‐rock elemental geochemistry on late Neoproterozoic to Cambrian clastic sedimentary rocks from South Jiangxi within Cathaysia. These clastic rocks are characterized by moderate chemical index of alteration (CIA) values of 73 and high Th/U ratios (>3.8), indicating moderate weathering of the source area. The relatively high index of compositional variability (ICV = 0.62–1.30) values indicates a source compositionally dominated by immature material that lacks alumina‐rich minerals. Bulk‐rock major and trace element systematics on discrimination diagrams are consistent with the source provenance being felsic‐intermediate igneous rocks of ancient continental crust origin. The geochemistry is also consistent with the clastic sedimentary rocks being deposited in a setting at or in the vicinity of passive continental margins. Detrital zircon U–Pb ages of the clastic rocks record five major age populations: 2,614–2,376 Ma (peak at ca. 2,482 Ma), 1,953–1,353 Ma, 1,000–900 Ma (peak at ca. 958 Ma), 850–730 Ma (peaks at ca. 845 and 763 Ma), and 685–571 Ma (peak at ca. 635 Ma). The age data provide a record of igneous activity in the source provenance: the 2,482 Ma peak is consistent with the global Neoarchean continental crust growth; the 1,953–1,353 Ma population correlates with the period of assembly and breakup of the Columbia supercontinent; the prominent peak at ca. 958 Ma corresponds to a common thermal–tectonic event associated with the assembly of Rodinia, and the 850–730 Ma population is consistent with the breakup of the Rodinia supercontinent. The ca. 850 Ma age is indicative of initial stage of Rodinia breakup in South China. Our data also reveal a 670–530 Ma population that correlates well with the Pan‐African event associated with the formation of the Gondwana supercontinent, although no direct geological evidence for this event has been found within the SCB. Moreover, complex zircon morphology and comparisons of detrital zircon U–Pb age spectra in a global context suggest the late Neoproterozoic–Cambrian sedimentary rocks in the Cathaysia Block must have sourced from an exotic source with magmatic activities of late Archean, Grenvillian, and Pan‐African ages, which do not outcrop in the Cathaysia Block or adjacent regions and need to be further explored.

show abstract

3.45 Ga granitic gneisses from the Yangtze Craton, South China: Implications for Early Archean crustal growth

Cited by 264 publications

References 69 publications

In situ zircon Hf–O isotopic analyses of late Mesozoic magmatic rocks in the Lower Yangtze River Belt, central eastern China: Implications for petrogenesis and geodynamic evolution

In situ zircon Hf–O isotopic analyses of late Mesozoic magmatic rocks in the Lower Yangtze River Belt, central eastern China: Implications for petrogenesis and geodynamic evolution

Tectonic architecture and multiple orogeny of the Qinling Orogenic Belt, Central China

Provenance, depositional setting, and crustal evolution of the Cathaysia Block, South China: Insights from detrital zircon U–Pb geochronology and geochemistry of clastic rocks

Contact Info

Product

Resources

About