U–Pb zircon age, geochemical and Sr–Nd–Pb–Hf isotopic constraints on age and origin of alkaline intrusions and associated mafic dikes from Sulu orogenic belt, Eastern China

Liu, Shen; Hu, Ruizhong; Gao, Shan; Chen, Feng; Qi, Youqiang; Wang, Tao; Guo, Feng; Coulson, Ian M.

doi:10.1016/j.lithos.2008.09.004

Cited by 129 publications

(76 citation statements)

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“…Mafic to intermediate dikes, such as lamprophyre, diabase and diorite, intruded the Yanshanian granitoids and basement rocks. Available K-Ar, Ar-Ar and U-Pb ages for these dikes range from 132 to 113 Ma, with an age peak at~120 Ma (Yang et al, 2004;Guo et al, 2004Guo et al, , 2005Hu et al, 2007;Tan et al, 2008;Liu et al, 2008Liu et al, , 2009Li et al, 2010;Ma et al, 2014a).…”

Section: Geological Setting and Samplesmentioning

confidence: 99%

“…The Palaeo-Pacific plate was subducted beneath the Eurasian continent before Jurassic time (Maruyama et al, 1997;Zhou and Li, 2000;Li and Li, 2007) This resulted in crustal thickening in eastern China and partial melting of pre-existing ancient crust (Wu et al, 2005b), and the formation of low-Mg adakitic granites in the Jiaodong Peninsula such as the Linglong and Kunyushan granites (Hou et al, 2007b;Zhang et al, 2010;Yang et al, 2012;Ma et al, 2013). During the Early Cretaceous, large-scale magmatism occurred within a short period, including both lithospheric and asthenospheric mantle-derived mafic rocks as well as high-Mg adakites (Yang et al, 2004;Guo et al, 2004;Tan et al, 2008;Liu et al, 2008Liu et al, , 2009Ma et al, 2013Ma et al, , 2014aMa et al, , 2014b. After this period, all magmas were sourced in the asthenosphere, and magmatism within the lithosphere became nearly extinct (Yan et al, 2003;Zhang et al, 2003b;Zhang et al, 2008b;Kuang et al, 2009;Li et al, 2014).…”

Section: A Possible Lithospheric Thinning Modelmentioning

confidence: 99%

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Rapid lithospheric thinning of the North China Craton: New evidence from cretaceous mafic dikes in the Jiaodong Peninsula

et al. 2016

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The North China Craton is a classic case for the destruction of an ancient craton, in that it records the loss of more than 100 km of ancient refractory lithospheric mantle during the late Mesozoic and early Cenozoic. However, the mechanisms for this lithospheric thinning remain controversial in large part due to the lack of any systematic investigations of the Mesozoic asthenospheric mantle via its derived mafic rocks, which are key to understand the thinning processes. In this paper, we present detailed zircon U-Pb geochronology, elemental geochemistry, and Sr-Nd-Hf isotopic data for lamprophyres and diabase-porphyries of the Jiaodong Peninsula, in the eastern North China Craton in order to place constraints on models for lithospheric thinning. Our results show that the lamprophyres and diabase-porphyries are derived from the convective asthenospheric mantle via different degrees of partial melting, and that this mantle source was previously modified by carbonatitic liquids. Zircon LA-ICP-MS U-Pb dating suggests an emplacement age for these rocks of 123-121 Ma, the earliest evidence for asthenospherically-derived melts in the Jiaodong Peninsula so far. This emplacement age indicates that the thickness of the lithosphere in the Jiaodong Peninsula was relatively thin at that time. Co-occurrence of the asthenospheric and lithospheric mantle-derived mafic rocks as well as high-Mg adakites record a rapid transition from lithospheric to asthenospheric mantle sources, indicating that the lithosphere beneath the Jiaodong Peninsula was rapidly detached just prior to ca. 120 Ma. Lithospheric thinning of the North China Craton may have been initiated from the Jiaodong Peninsula and Bohai Sea and then propagated towards the interior of the craton.

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Section: Geological Setting and Samplesmentioning

confidence: 99%

Section: A Possible Lithospheric Thinning Modelmentioning

confidence: 99%

Rapid lithospheric thinning of the North China Craton: New evidence from cretaceous mafic dikes in the Jiaodong Peninsula

et al. 2016

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“…북중 국지괴 동측에 분포하는 백악기초기(약 144-100 Ma) 화성암은 피크라이트(picrite)-현무암-현무암질 안산암 및 황반암(lamprophyre)의 분출암 (Qiu et al, 2002;Yang et al, 2004;Guo et al, 2005Guo et al, , 2013Liu et al, 2006;Gao et al, 2008;Ma et al, 2014a, b)과 반려암-섬록암-몬조니암-섬장암-화강암 및 휘록암의 관 입암체 (Xu et al, , 2006Chen et al, , 2004Zhang et al, 2004Zhang et al, , 2005Zhang et al, , 2010Zhang et al, , 2012Wu et al, 2005;Yang et al, 2006Yang et al, , 2012aLiu et al, , 2009 Guo et al, 2004;Wang et al, 2005)과 반려암-섬록암-몬조니암-섬장암-화강암 및 휘록암의 관입암체 (Jahn et al, 1999;Yang et al, 2005a;Guo et al, 2006Guo et al, , 2014Huang et al, 2006Huang et al, , 2007Wang et al, 2007;Zhao et al, 2005Zhao et al, , 2007aLiu et al, 2008b;Tang et al, 2008b;Zhang et al, 2010Zhang et al, , 2012He et al, 2011He et al, , 2013)로 구성되어 있다. TAS도( (Fig.…”

Section: 암 상unclassified

Petrogenesis of Early Cretaceous Magmatism in Eastern China and the Gyeongsang Basin, Korean Peninsula

Choi¹

2016

The Journal of the Petrological Society of Korea

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핵심어: 백악기초기, 동중국, 경상분지, 현무암, 암석권맨틀Abstract: Geochemical characteristics of the Early Cretaceous igneous rocks from eastern China and the Gyeongsang Basin, Korean Peninsula has been summarized. They have wide range of lithological variation with extrusive picrite-basalt-andesite-trachyte-rhyolite and lamprophyre, and intrusive gabbro-dioritemonzonite-syenite-granite and diabase in eastern China, mostly belonging to the high-K calc-alkaline or shoshonitic series. The volcanic rocks intercalated with the Hayang Group sedimentary assemblages in the Gyeongsang basin are high-K to shoshonitic basaltic trachyandesites. The Early Cretaceous basaltic rocks studied mostly fall within the field of within-plate basalts on the Zr/Y-Zr and Nb-Zr-Y tectonic discrimination diagrams. On a Sr-Nd isotope correlation diagram, basaltic rocks from the North China block (NCB) and the continent-continent collision zone (CZ) between the North and South China blocks plot into the enriched lower right quadrant along the extension of the mantle array. The initial Pb(t) correlation. Meanwhile, the SCB basaltic

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“…The relatively negative Ba, Sr, and Eu anomalies of the rocks (Figs. 7a, 7b and 9) imply the fractionation of K feldspar and plagioclase (Liu et al, 2008a(Liu et al, , 2008b(Liu et al, , 2009(Liu et al, , 2010.…”

Section: Fig 4 Classification Of the Studied Granodiorite Porphyriementioning

confidence: 99%

U-Pb zircon age, geochemical, and Sr-Nd isotopic constraints on the age and origin of granodiorite porphyries in the Guilong area, southern Yunnan Province, South China

Liu

Chen

et al. 2013

Geochem. J.

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U–Pb zircon age, geochemical and Sr–Nd–Pb–Hf isotopic constraints on age and origin of alkaline intrusions and associated mafic dikes from Sulu orogenic belt, Eastern China

Cited by 129 publications

References 92 publications

Rapid lithospheric thinning of the North China Craton: New evidence from cretaceous mafic dikes in the Jiaodong Peninsula

Rapid lithospheric thinning of the North China Craton: New evidence from cretaceous mafic dikes in the Jiaodong Peninsula

Petrogenesis of Early Cretaceous Magmatism in Eastern China and the Gyeongsang Basin, Korean Peninsula

U-Pb zircon age, geochemical, and Sr-Nd isotopic constraints on the age and origin of granodiorite porphyries in the Guilong area, southern Yunnan Province, South China

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