A 1.78 Ga large igneous province in the North China craton: The Xiong'er Volcanic Province and the North China dyke swarm

Peng, Peng; Zhai, Mingguo; Ernst, Richard E.; Guo, Jinghui; Liu, Fu; Hu, Bo

doi:10.1016/j.lithos.2007.07.006

Cited by 356 publications

(153 citation statements)

References 39 publications

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“…The Columbia supercontinent was likely transformed to an extensional setting at 1.75 to 1.6 Ga as indicated by the occurrence of mafic dyke swarms, anorthosites, rapakivi granites, and intracontinental rift basins (e.g. Zhao et al 2004Zhao et al , 2009Peng et al 2008). In the western Yangtze Block, the Dongchuan Group with a zircon U-Pb age of 1,742±13 Ma has been considered to have formed in a continental rift basin (Hua 1990b;Wu et al 1990;Zhao et al 2010).…”

Section: Possible Link To the Columbia Supercontinentmentioning

confidence: 99%

Late Paleoproterozoic sedimentary rock-hosted stratiform copper deposits in South China: their possible link to the supercontinent cycle

Zhao

Zhou

et al. 2012

Miner Deposita

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Giant sedimentary rock-hosted stratiform copper (SSC) deposits commonly occur in rift environments, temporally coincident with the breakup of the Rodinia and Pangea supercontinents. However, whether or not such deposits have also formed during the breakup of the Paleoproterozoic Columbia supercontinent is not well known. A group of dolostone-hosted Cu deposits in late Paleoproterozoic rift-related sedimentary sequences of the Dongchuan Group, South China, form one of the largest SSC districts in the world. Being one of the largest SSC deposits in the region, the Yinmin deposit has stratiform Cu orebodies intruded by dolerite dykes. One dyke has a SIMS zircon U-Pb age of 1,701±28 Ma, slightly younger than the orehosting strata with a zircon U-Pb age of 1,742±13 Ma for a tuff unit. Six chalcopyrite and bornite separates from stratiform orebodies contain highly radiogenic Os and extremely low common Os and yield a weighted mean Re-Os model age of 1,666±82 Ma and a 187 Os-187 Re errorchron age of 1,585±100 Ma. The present zircon U-Pb and sulfide Re-Os ages thus constrain the timing of the mineralization at 1,700 Ma. The Yinmin deposit and, by inference, other SSC deposits in the region, arguably represent a large-scale SSC mineralization event during the late Paleoproterozoic. The formation of these deposits was coeval with the initial breakup/fragmentation of the Columbia supercontinent. This study highlights the temporal and likely genetic links between large-sized SSC deposits and the supercontinent cycle.

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Section: Possible Link To the Columbia Supercontinentmentioning

confidence: 99%

Late Paleoproterozoic sedimentary rock-hosted stratiform copper deposits in South China: their possible link to the supercontinent cycle

Zhao

Zhou

et al. 2012

Miner Deposita

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“…The TSM syenogranite has similar initial 87 Sr/ 86 Sr values to those of the amphibolites of the Taihua Group at 120 Ma (Ni et al, 2012;X.S. Xu et al, 2009) and those of the volcanic rocks from the Xiong'er Group (He et al, 2010;Peng et al, 2008;Wang et al, 2010), but lower than those of the gneiss and quartz schists from the Taihua Group (Huang and Wu, 1990) (Fig. 7A).…”

Section: Petrogenesismentioning

confidence: 77%

“…1B) (Mao et al, 2010). The mafic intrusions in this region, dominated by mafic dykes or stocks, were mainly emplaced the Archean metamorphic rocks during Mesoproterozoic (Peng et al, 2008), and sporadically during late Mesozoic (Wang et al, 2008). The late Mesozoic mafic rocks are mainly composed of dolerite and diorite with minor lamprophyre, with SHRIMP zircon U-Pb ages of~128 Ma (Wang et al, 2008).…”

Section: Geological Backgroundmentioning

confidence: 99%

Petrogenesis of the early Cretaceous intermediate and felsic intrusions at the southern margin of the North China Craton: Implications for crust–mantle interaction

Gao¹,

Zhao²,

Bao³

et al. 2014

Lithos

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“…Of these, the lower subgroup of the original Taihua Group [12,13] (which disintegrated from the Taihua Complex), the Dengfeng Complex [14,15] and the Angou Group [16] developed in Neoarchean, whereas the upper subgroup of the Taihua Group [12], the Songshan [17,18], Xiong'er Group and the Tietonggou Formation were formed in Paleoproterozoic [19].…”

Section: Geological Setting and Sample Collectionmentioning

confidence: 99%

“…Thus, the minimum depositional age of the Tietonggou Formation can be constrained by the formation age of the Xiong'er Group. In the last three decades, there has been considerable debate over the petrogenesis and tectonic settings of the Xiong'er volcanic rocks, however available SHRIMP and LA-ICPMS U-Pb zircon age data indicate that the Xiong'er Group formed at 1.80-1.75 Ga [19,[21][22]. Although minor ~1.45 Ga felsic volcanic rocks are reported in Xiong'er Group, which possibly represent a later magmatic activity in the southern NCC [22].…”

Section: Deposition Time Of the Tietonggou Formationmentioning

confidence: 99%

Early Precambrian tectonothermal events of the North China Craton: Constraints from in situ detrital zircon U-Pb, Hf and O isotopic compositions in Tietonggou Formation

et al. 2013

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Clastic sediments and sedimentary rocks are widely used for understanding the formation and evolution of the continental crust. The Tietonggou Formation outcrops in the Xiaoqinling region at the southern margin of the North China Craton (NCC) and has unconformable contacts with the underlying Taihua Complex and overlying Paleoproterozoic Xiong'er Group. It mainly consists of quartzite and its protoliths are mature terrigenous clastic rocks. On the basis of the ages of the youngest detrital zircons from the quartzites and the ages of the Xiong'er Group, the depositional ages of the protoliths of the Tietonggou Formation were well constrained to 1.91-1.80 Ga. The U-Pb isotopic data of detrital zircons from the Formation show a major age peak at ~2.1 Ga, which is consistent with 2.2-2.0 Ga magmatism in the Trans-North China Orogen of the NCC. Taking into account the texctural and compositional maturity of the Tietonggou Formation quartzite, the ~2.1 Ga lithologic units in the Trans-North China Orogen are interpreted as the major source of the Tietonggou Formation. The majority of these ~2.1 Ga detrital zircons mostly have high δ 18 O values (>6.5‰) and negative ε Hf (t) values (-7.8-0.0), with corresponding Hf model ages significantly older than their crystallization ages, indicating that these zircons formed from the partial melting of ancient continental crust. The majority of the 2.8-2.7 Ga and ~2.5 Ga detrital zircons from the Tietonggou Formation had positive ε Hf (t) values, and mantle-like δ 18 O values, suggesting that the NCC has experienced two stages of significant crustal growth in the Neoarchaean at 2.7 and 2.5 Ga, respectively. The Hf isotopic data of detrital zircons from Paleoproterozoic metasedimentary rocks in the Trans-North China Orogen varied mainly toward the reduction of the radiogenic Hf isotope and gradually show a similar trend of the isotope trajectories of crustal evolution. This reveals that the NCC probably has not developed a long-lived subduction to complete the final assembly of the NCC. Alternatively, these maybe imply that the tectonic setting of the NCC substantially changed at ~2.1 Ga, the reduction of the radiogenic Hf isotope could be attributed to the rollback of the subducting slab. North China Craton, Tietonggou Formation, detrital zircon, Hf isotope, O isotope Citation:Diwu C R, Sun Y, Gao J F, et al. Early Precambrian tectonothermal events of the North China Craton: Constraints from in situ detrital zircon

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A 1.78 Ga large igneous province in the North China craton: The Xiong'er Volcanic Province and the North China dyke swarm

Cited by 356 publications

References 39 publications

Late Paleoproterozoic sedimentary rock-hosted stratiform copper deposits in South China: their possible link to the supercontinent cycle

Late Paleoproterozoic sedimentary rock-hosted stratiform copper deposits in South China: their possible link to the supercontinent cycle

Petrogenesis of the early Cretaceous intermediate and felsic intrusions at the southern margin of the North China Craton: Implications for crust–mantle interaction

Early Precambrian tectonothermal events of the North China Craton: Constraints from in situ detrital zircon U-Pb, Hf and O isotopic compositions in Tietonggou Formation

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