Juvenile magmatism and crustal recycling at the end of the Neoarchean in Western Shandong Province, North China Craton: Evidence from SHRIMP zircon dating

Wan, Yusheng; Liu, Dunyi; Wang, Shijin; Dong, Chunyan; Yang, Enxiu; Wang, Wei; Zhou, Hongying; Ning, Zhenguo; Du, Long; Yin, Xiaoyan; Xie, Huixiang; Ma, Mingzhu

doi:10.2475/10.2010.11

Cited by 154 publications

(69 citation statements)

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“…They show prominent U-Pb age peaks at 2.4~2.5 Ga and 1.8~1.9 Ga, which are the characteristic of the North China Craton (Fig. 4A) (Wan et al, 2000(Wan et al, , 2006a(Wan et al, , 2006b(Wan et al, , 2010(Wan et al, , 2012bKusky et al, 2001;. The 2.4~2.5 Ga ages are widespread in the North China Craton, which represents the strongest magmatic events in the North China Craton.…”

Section: Provenance Of Floodplain Sedimentsmentioning

confidence: 99%

“…According to the Nd and Hf isotopes, the best estimation age of mantle extraction of the North China Craton is 2.7 Ga Yang et al, 2009;Geng et al, 2012;Diwu et al, 2012;Ma et al, 2013;Wang et al, 2013), but the UPb ages in the North China Craton indicated that the strongest magmatic events occurred at ~2.5 Ga and the much of continental crust in the North China Craton has formed at that time (Liu et al, 1990;Zhao et al, 2002;Kröner et al, 2005;Yang et al, 2009;Wan et al, 2010Wan et al, , 2012aGeng et al, 2012;Diwu et al, 2012). The West Block of the North China Craton has formed with the collision between Yinshan and Erdos Blocks at 1.95~1.90 Ga Wan et al, 2006aWan et al, , 2010, and the united Western Block collided with the Eastern Block at ~1.85 Ga, (Wan et al, 2000(Wan et al, , 2006aZhao et al, 2000;Guan et al, 2002;Guo et al, 2005;Xia et al, 2006;Zhang, J. et al, 2006Zhang, J. et al, , 2007Zhang, J. et al, , 2009Zhang, J. et al, , 2012. After that, the North China Craton completed cratonization, indicating that the carton could remain quiescent with zero to negligible growth.…”

Section: Geological Setting and Samplingmentioning

confidence: 99%

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Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

et al. 2013

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Recently, how to quantitatively estimate the growth rate of continental crust is an enigmatic issue. With the development of ICP-MS technology, the U-Pb dating and Lu-Hf isotopic compositions of detrital zircons from the fluvial sediments can provide an effective and simple approach to constrain the growth rate and evolutionary history of continental crust. In this paper, 189 concordant detrital zircons from the Laoha River have been analyzed for U-Pb ages and Lu-Hf isotopic compositions by excimer LA-MC-ICP-MS. Detrital zircons from samples LH and LH2 show three major age groups, i.e., 2370 Ma~2572 Ma, 1728~2087 Ma, 127~376 Ma and 2374~2598 Ma, 1765~2087 Ma, 119~405 Ma, respectively. They have the common prominent two stage Hf model ages with a peak at ca. 2.7 Ga, which is consistent with the global continental crust. These indicate that the timing of the strongest magmatic events is at ca. 2.5 Ga and 1.8 Ga, and the best estimation age of mantle extraction of the northeast margin of North China Craton is ca. 2.7 Ga. The detrital zircons with U-Pb ages of ~1.8 Ga and ~2.5 Ga have the two stage Hf model ages of ca. 2.7 Ga, whereas ε Hf (t) values are different from those of depleted mantle. These indicate that the majority of continental crust of the northeast margin of North China Craton at time of ~1.8 Ga originated from the reworking of ~2.7 Ga crust. About 5% of the present crustal volume in the northeast margin of North China Craton was formed at 2.9 Ga; whilst ~64% of the present crustal volume in the northeast margin of North China Craton has been formed at 2.5 Ga, which is higher than that of previous studies. It suggests that the continental crust growth in the North China Craton is not uniform, but it is consistent with the episodic growth of global continental crust (60%). Moreover, the majority continental crust of the northeast margin of North China Craton has been formed at 1.8 Ga (84%) as previously interpreted. Finally, we have used formulas to quantitatively calculate the reworking rate and give a suggestion that the time of 2.5 Ga is also the main growth period of continental crust of the North China Craton, and the time of 1.8 Ga is the strongest reworking period of the continental crust in the craton. In addition, the reworking rate began to drop after reactivating in the North China Craton, and the addition of depleted mantle was gradually increased.

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Section: Provenance Of Floodplain Sedimentsmentioning

confidence: 99%

Section: Geological Setting and Samplingmentioning

confidence: 99%

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

et al. 2013

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“…Unlike other cratons, however, a strong tectono-magmatic event at~2.5 Ga is recorded across the whole NCC (e.g., Zhao et al, 2005;Yang et al, 2008;Wan et al, 2010Wan et al, , 2012c. Thus,~2.5 Ga igneous rocks predominate and only minor 2.7 Ga granites and greenstones are present, mostly occurring in the Eastern Block (Wan et al, 2010(Wan et al, , 2012a and references therein). The~2.7 Ga granitoids are dominantly Na-rich TTGs, with subordinate potassic granitoids and high-Mg rocks (e.g., Polat et al, 2006;Wang et al, 2009;Wan et al, 2010Wan et al, , 2012c.…”

mentioning

confidence: 99%

“…The Eastern Block of the NCC contains the oldest rocks in China (~3.8 Ga) (e.g., Liu et al, 1992Liu et al, , 2008Wilde et al, 2008) and underwent rapid crustal growth at around 2.7 Ga, similar to most other Archean cratons (e.g., Jahn et al, 1988;Cao et al, 1996;Wu et al, 2005b;Wan et al, 2010Wan et al, , 2011. Unlike other cratons, however, a strong tectono-magmatic event at~2.5 Ga is recorded across the whole NCC (e.g., Zhao et al, 2005;Yang et al, 2008;Wan et al, 2010Wan et al, , 2012c. Thus,~2.5 Ga igneous rocks predominate and only minor 2.7 Ga granites and greenstones are present, mostly occurring in the Eastern Block (Wan et al, 2010(Wan et al, , 2012a and references therein).…”

mentioning

confidence: 99%

“…Thus,~2.5 Ga igneous rocks predominate and only minor 2.7 Ga granites and greenstones are present, mostly occurring in the Eastern Block (Wan et al, 2010(Wan et al, , 2012a and references therein). The~2.7 Ga granitoids are dominantly Na-rich TTGs, with subordinate potassic granitoids and high-Mg rocks (e.g., Polat et al, 2006;Wang et al, 2009;Wan et al, 2010Wan et al, , 2012c. From field and geochronological evidence, the potassium-rich granitic rocks in the NCC also post-date the Na-rich TTG.…”

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confidence: 99%

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Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution

Peng

Wilde

et al. 2013

Chemical Geology

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Crustal reworking in the North China Craton at ~2.5 Ga: evidence from zircon U–Pb age, Hf isotope and whole rock geochemistry of the felsic volcano‐sedimentary rocks from the western Shandong Province

et al. 2013

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The western Shandong Province (WSP) is one of the typical Neoarchaean granite–greenstone belts in the Eastern Block of the North China Craton (NCC) and is an important region to investigate the early Precambrian evolutionary history of the NCC. The Taishan association, consisting of a ~2.7 Ga komatiite–tholeiite sequence and a ~2.5 Ga felsic volcano‐sedimentary sequence, is the major lithological assemblage in the WSP. In the Qixingtai area, the felsic volcano‐sedimentary sequence, partly subjected to anatexis, is composed of hornblende gneiss, voluminous fine‐grained biotite gneiss and biotite plagioclase gneiss. SHRIMP zircon dating shows that the protolith of the biotite plagioclase gneiss formed after ca. 2.53 Ga. The tonalite intrusion into the volcanic protoliths of the fine‐grained biotite gneiss and biotite plagioclase gneiss occurred at 2.52 Ga. Our age data constrain the time of formation of the felsic volcano‐sedimentary sequence in the Taishan area as 2.53–2.52 Ga. The majority of zircons from the felsic volcano‐sedimentary rocks have intermediate εHf(t) values (−1.2 to +2.1). The whole rock Nd isotopes of the Taishan felsic volcano‐sedimentary rocks yield the εNd(t = 2522 Ma) values of +2.6 to −1.8 and TDM2 ages 3.03–2.68 Ga. These values indicate the pre‐existing crust was reworked at the end of the Neoarchaean (~2.5 Ga). The Taishan felsic volcano‐sedimentary rocks are rhyodacite–dacite and andesite in composition. These rocks and the tonalite display similar high SiO2 (65–72 wt.%) and low MgO (1–2 wt.%) content. In contrast, the minor andesites in the area have lower SiO2 (61–62 wt.%) and higher MgO (5.3–6.3 wt.%), suggesting more mantle contribution during their petrogenesis. However, the Mg‐rich andesites have identical rare earth element and multi‐element patterns with the rhyodacite–dacites and distinguish them from the Taishan sanukitoids. We suggest that the 2.53–2.52 Ga felsic volcanics of the Taishan association are the products of partial melting of a subducted oceanic crust. The andesites were produced by minor modification of the ascending tonalite–trondhjemite–granodiorite‐type magma by the mantle wedge. Our study indicates that (1) the tectonic regime of the WSP greenstone belt was dominated by an arc‐subduction system at ~2.52 Ga and (2) the 2.53–2.52 Ga felsic volcano‐sedimentary rocks and intrusive tonalite are the products of crustal reworking. The felsic volcano‐sedimentary sequence of the Taishan association and other ~2.5 Ga arc‐like assemblages in the NCC provide important clues to understand the nature of the tectonothermal events at the end of the Neoarchaean. Copyright © 2013 John Wiley & Sons, Ltd.

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Juvenile magmatism and crustal recycling at the end of the Neoarchean in Western Shandong Province, North China Craton: Evidence from SHRIMP zircon dating

Cited by 154 publications

References 52 publications

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution

Crustal reworking in the North China Craton at ~2.5 Ga: evidence from zircon U–Pb age, Hf isotope and whole rock geochemistry of the felsic volcano‐sedimentary rocks from the western Shandong Province

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