Termination time of peak decratonization in North China: Geochemical evidence from mafic igneous rocks

Lithos, pp. 327-336, 2015.

Cited by: 17|Views28
Weibo:
The dramatic demarcation in the geochemical composition between the two types of mafic igneous rocks occurred at ~121 Ma, indicating that the ancient subcontinental lithospheric mantle would have been replaced by the juvenile SCLM at that time

Abstract:

Geophysical and petrological data indicate destruction of the cratonic lithosphere in North China in the Mesozoic, resulting in replacement of the ancient subcontinental lithospheric mantle (SCLM) by the juvenile SCLM. However, it remains to be answered when the craton destruction would have been terminated in the Mesozoic. This question ...More

Code:

Data:

0
Introduction
  • Cratons are the old and stable parts of continental lithosphere, characteristically composed of ancient and thick crust with deep lithospheric roots (e.g., Jordan, 1975; O’Reilly et al, 2001; Carlson et al, 2005; Foley, 2008).
  • Similar to the Late Cretaceous mafic rocks, they show OIB-like trace element distribution patterns and relatively depleted Sr-Nd isotope compositions, with low initial 87Sr/86Sr ratios of 0.7034 to 0.7041 and positive εNd(t) values of 1.6 to 7.0 (Figs.
Highlights
  • Cratons are the old and stable parts of continental lithosphere, characteristically composed of ancient and thick crust with deep lithospheric roots (e.g., Jordan, 1975; O’Reilly et al, 2001; Carlson et al, 2005; Foley, 2008)
  • This study focuses on mafic igneous rocks from east-central China, namely the Jiaodong Peninsula that is located in the southeastern edge of the North China Craton (NCC)
  • The Mesozoic-Cenozoic mafic igneous rocks in the Jiaodong Peninsula show a series of significant changes in their geochemistry with respect to emplacement ages at ~121 Ma
  • Type-I mafic igneous rocks have Triassic to Early Cretaceous ages and exhibit arc-like trace element distribution patterns and enriched radiogenic Sr-Nd isotope compositions, indicating their derivation from partial melting of the enriched subcontinental lithospheric mantle (SCLM) sources that were generated by metasomatic reaction of the ancient craton mantle peridotite with felsic melt originated from the subducted continental crust
  • Cretaceous to Cenozoic ages and show oceanic island basalts (OIB)-like trace element distribution patterns and relatively depleted radiogenic Sr-Nd isotope compositions, suggesting their derivation from partial melting of the juvenile SCLM sources that were generated by metasomatic reaction of the asthenospheric mantle with felsic melts originated from the subducted oceanic crust
  • The dramatic demarcation in the geochemical composition between the two types of mafic igneous rocks occurred at ~121 Ma, indicating that the ancient SCLM would have been replaced by the juvenile SCLM at that time
Results
  • They generally have higher Nb/U and TiO2/Al2O3 ratios as well as more positive εNd(t) values than those of Type-I rocks (Fig. 9), indicating a contribution from subducted oceanic crust rather than continental crust to their mantle sources (Zhang et al, 2009; Xu et al, 2012).
  • The Jiaojia and Late Cretaceous mafic rocks with relatively high SiO2 contents and enriched Sr-Nd isotope compositions were probably originated from the mantle sources that were generated by metasomatic reaction of the mantle peridotite with terrigenous sediment-derived melts.
  • The Cenozoic mafic rocks with relatively low SiO2 contents and depleted Sr-Nd isotope compositions were probably originated from the mantle sources that were generated by metasomatic reaction of the mantle peridotite with oceanic basalt-derived melts.
  • 7 and 8, the significant changes in major element, trace element, and radiogenic isotope compositions between the two types of mafic igneous rocks occur at ~121 Ma. This series of observations provide an important signal of the temporal change in the nature of mantle lithosphere in North China because the mantle sources for the two types of mafic igneous rocks were generated by the melt-peridotite at the slab-mantle interface in subduction channels.
  • The Mesozoic-Cenozoic mafic igneous rocks in the Jiaodong Peninsula show a series of significant changes in their geochemistry with respect to emplacement ages at ~121 Ma. Generally, these mafic rocks are categorized into two types based on the dramatic changes in their major element, trace elements and radiogenic isotope compositions.
  • Type-I mafic igneous rocks have Triassic to Early Cretaceous ages and exhibit arc-like trace element distribution patterns and enriched radiogenic Sr-Nd isotope compositions, indicating their derivation from partial melting of the enriched SCLM sources that were generated by metasomatic reaction of the ancient craton mantle peridotite with felsic melt originated from the subducted continental crust.
Conclusion
  • Cretaceous to Cenozoic ages and show OIB-like trace element distribution patterns and relatively depleted radiogenic Sr-Nd isotope compositions, suggesting their derivation from partial melting of the juvenile SCLM sources that were generated by metasomatic reaction of the asthenospheric mantle with felsic melts originated from the subducted oceanic crust.
  • This age signifies the tectonic transition from the enriched mantle to the depleted mantle beneath the NCC during the Mesozoic, and provides a temporal constraint on the termination of peak decratonization in North China
Summary
  • Cratons are the old and stable parts of continental lithosphere, characteristically composed of ancient and thick crust with deep lithospheric roots (e.g., Jordan, 1975; O’Reilly et al, 2001; Carlson et al, 2005; Foley, 2008).
  • Similar to the Late Cretaceous mafic rocks, they show OIB-like trace element distribution patterns and relatively depleted Sr-Nd isotope compositions, with low initial 87Sr/86Sr ratios of 0.7034 to 0.7041 and positive εNd(t) values of 1.6 to 7.0 (Figs.
  • They generally have higher Nb/U and TiO2/Al2O3 ratios as well as more positive εNd(t) values than those of Type-I rocks (Fig. 9), indicating a contribution from subducted oceanic crust rather than continental crust to their mantle sources (Zhang et al, 2009; Xu et al, 2012).
  • The Jiaojia and Late Cretaceous mafic rocks with relatively high SiO2 contents and enriched Sr-Nd isotope compositions were probably originated from the mantle sources that were generated by metasomatic reaction of the mantle peridotite with terrigenous sediment-derived melts.
  • The Cenozoic mafic rocks with relatively low SiO2 contents and depleted Sr-Nd isotope compositions were probably originated from the mantle sources that were generated by metasomatic reaction of the mantle peridotite with oceanic basalt-derived melts.
  • 7 and 8, the significant changes in major element, trace element, and radiogenic isotope compositions between the two types of mafic igneous rocks occur at ~121 Ma. This series of observations provide an important signal of the temporal change in the nature of mantle lithosphere in North China because the mantle sources for the two types of mafic igneous rocks were generated by the melt-peridotite at the slab-mantle interface in subduction channels.
  • The Mesozoic-Cenozoic mafic igneous rocks in the Jiaodong Peninsula show a series of significant changes in their geochemistry with respect to emplacement ages at ~121 Ma. Generally, these mafic rocks are categorized into two types based on the dramatic changes in their major element, trace elements and radiogenic isotope compositions.
  • Type-I mafic igneous rocks have Triassic to Early Cretaceous ages and exhibit arc-like trace element distribution patterns and enriched radiogenic Sr-Nd isotope compositions, indicating their derivation from partial melting of the enriched SCLM sources that were generated by metasomatic reaction of the ancient craton mantle peridotite with felsic melt originated from the subducted continental crust.
  • Cretaceous to Cenozoic ages and show OIB-like trace element distribution patterns and relatively depleted radiogenic Sr-Nd isotope compositions, suggesting their derivation from partial melting of the juvenile SCLM sources that were generated by metasomatic reaction of the asthenospheric mantle with felsic melts originated from the subducted oceanic crust.
  • This age signifies the tectonic transition from the enriched mantle to the depleted mantle beneath the NCC during the Mesozoic, and provides a temporal constraint on the termination of peak decratonization in North China
Funding
  • This study was supported by funds from the Chinese Ministry of Science and Technology (2015CB856102) and the National Natural Science Foundation of China (41125012 and 41573001)
Reference
  • Carlson, R.W., Pearson, D.G., James, D.E., 2005.
    Google ScholarLocate open access versionFindings
  • Physical, chemical and chronological characteristics of continental mantle. Reviews of Geophysics 43, RG1001; doi:10.1029/2004RG000156.
    Locate open access versionFindings
  • Chen, L.H., Zeng, G., Jiang, S.Y., Hofmann, A.W., Xu, X.S., 2009. Sources of Anfengshan basalts: subducted lower crust in the Sulu UHP belt, China. Earth and Planetary Science Letters 286, 426-435.
    Google ScholarLocate open access versionFindings
  • Chung, S.-L., 1999. Trace element and isotope characteristics of Cenozoic basalts around the Tanlu Fault with implications for the east plate boundary between North and South China. Journal of Geology, 107, 301-312.
    Google ScholarLocate open access versionFindings
  • Dai, L.-Q., Zhao, Z.-F., Zheng, Y.-F., Li, Q., Yang, Y., Dai, M., 2011. Zircon Hf-O isotope evidence for crust-mantle interaction during continental deep subduction. Earth and Planetary Science Letters 308, 224-244.
    Google ScholarLocate open access versionFindings
  • Davis, G.A., Darby, B.J., Zheng, Y., Spell, T.L., 2002. Geometric and temporal evolution of an extensional detachment fault, Hohhot metamorphic core complex, Inner Mongolia, China. Geology 30, 1003-1006.
    Google ScholarLocate open access versionFindings
  • Fan, W.M., Guo, F., Wang, Y.J., Lin, G., Zhang, M., 2001. Postorogenic bimodal volcanism along the Sulu orogenic belt in eastern China. Physics and Chemistry of the Earth (A) 27, 733-746.
    Google ScholarLocate open access versionFindings
  • Foley, S.F., 200Rejuvenation and erosion of the cratonic lithosphere. Nat. Geosci. 1, 503-510.
    Google ScholarLocate open access versionFindings
  • Gao S., Rudnick R. L., Carlson R. W., McDonoughW. F. and Liu Y. S., 2002. Re-Os evidence for replacement of ancient mantle lithosphere beneath the North China craton. Earth and Planetary Science Letters 198, 307-322.
    Google ScholarLocate open access versionFindings
  • Gao, S., Rudnick, R.L., Yuan, H.-L., Liu, X.-M., Liu, Y.-S., Xu,W.-L., Ling,W.-L., Ayers, J.,Wang, X.-C.,Wang, Q.-H., 2004. Recycling lower continental crust in the North China Craton. Nature 432, 892–897.
    Google ScholarLocate open access versionFindings
  • Griffin, W.L., Andi, Z., O'Reilly, S.Y., Ryan, C.G., 1998. Phanerozoic evolution of the lithosphere beneath the Sino-Korean craton. In: Flower, M., Ching, S.L., Lo, C.H., Lee, T.Y. (Eds.), Mantle Dynamics and Plate Interactions in East Asia. AGU Geodynamics Series, 27, 107-126.
    Google ScholarLocate open access versionFindings
  • Guo, F., Fan, W.M., Wang, Y.J., Zhang, M., 2004. Origin of early Cretaceous calc-alkaline lamprophyres from the Sulu orogen in eastern China: implications for enrichment processes beneath continental collisional belt. Lithos 78, 291-305.
    Google ScholarLocate open access versionFindings
  • Hart, S.R., 1984. A large-scale isotope anomaly in the Southern Hemisphere mantle. Nature 309, 753-757.
    Google ScholarLocate open access versionFindings
  • Hofmann, A.W., 1988. Chemical differentiation of the Earth: the relationship between mantle, continental crust, and oceanic crust. Earth and Planetary Science Letters 90, 297-314.
    Google ScholarLocate open access versionFindings
  • Huang, F., Li, S.G., Dong, F., Li, Q.L., Chen, F., Wang, Y., Yang, W., 2007. Recycling of deeply subducted continental crust in the Dabie Mountains, central China. Lithos 96, 151-169 Jordan, T.H., 1975. The continental tectosphere. Reviews of Geophysics and Space Physics 13, 1-12.
    Google ScholarLocate open access versionFindings
  • Ito, E., White W.M., Gopel, C., 1987.
    Google ScholarFindings
  • Kelemen, P.B., Hanghoj, K., and Greene, A.R., 2003. One view of the geochemistry of subduction-related magmatic arcs, with an emphasis on primitive andesite and lower crust. Treatise on Geochemistry 3, 593-659.
    Google ScholarLocate open access versionFindings
  • Ma, L., Jiang, S.Y., Hofmann, A.W., Dai, B.Z., Hou, M.L., Zhao, K.D., Chen, L.H., Li, J.W., Jiang, Y.H., 2014. Lithospheric and asthenospheric sources of lamprophyres in the
    Google ScholarFindings
  • Macdougall, J. D., and G. W. Lugmair, 1986. Sr and Nd isotopes in basalts from the East Pacific Rise: Significance for mantle heterogeneity, Earth and Planetary Science Letters 77, 273-284.
    Google ScholarLocate open access versionFindings
  • McDonough, W.F., Sun, S.-s., 1995. The composition of the Earth. Chemical Geology 120, 223-253.
    Google ScholarLocate open access versionFindings
  • Menzies, M.A., Fan, W.M., Zhang, M., 1993. Palaeozoic and Cenozoic lithoprobes and the loss of N120 km of Archaean lithosphere, Sino-Korean craton, China. Geological Society Special Publications 76, 71-81.
    Google ScholarLocate open access versionFindings
  • Menzies, M., Xu, Y.G., Zhang, H.F., Fan W.M., 2007. Integration of geology, geophysics and geochemistry: A key to understanding the North China Craton. Lithos 96, 1-21.
    Google ScholarLocate open access versionFindings
  • Niu, Y., 2005. Generation and evolution of basaltic magmas: Some basic concepts and a hypothesis for the origin of the Mesozoic-Cenozoic volcanism in eastern China. Geological Journal of China Universities 11, 9-46.
    Google ScholarLocate open access versionFindings
  • O'Reilly, S.Y., Griffin, W.L., Poudjom Djomani, Y.H., Morgan, P., 2001. Are lithospheres forever? Tracking changes in subcontinental lithospheric mantle through time. GSA Today 4-9.
    Google ScholarFindings
  • Ringwood, A.E., 1990. Slab-mantle interactions: 3. Petrogenesis of intraplate magmas and structure of the upper mantle. Chemical Geology 82, 187-207.
    Google ScholarLocate open access versionFindings
  • Sakuyama, T., Tian, W., Kimura, J.I., Fukao, Y., Hirahara, Y., Takahashi, T., Senda, R., Chang, Q., Miyazaki, T., Obayashi, M., Kawabata, H., Tatsumi, Y., 2013. Melting of dehydrated oceanic crust from the stagnant slab and of the hydrated mantle transition zone: constraints from Cenozoic alkaline abasalts in eastern China. Chemical Geology 359, 32-48.
    Google ScholarLocate open access versionFindings
  • Sun, S.-s, McDonough, W.F., 1989. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. Geological Society Special Publications 42, 313-345.
    Google ScholarLocate open access versionFindings
  • Wang, Y., Zhao, Z.-F., Zheng, Y.-F., Zhang, J.-J., 2011. Geochemical constraints on the nature of mantle source for Cenozoic continental basalts in east-central China. Lithos 125, 940-955.
    Google ScholarLocate open access versionFindings
  • White, W.M., Hofmann, A.W., Puchelt, H., 1987. Isotope geochemistry of Pacific midocean ridge basalt. Journal of Geophysical Research 92, 4881-4893.
    Google ScholarLocate open access versionFindings
  • Windley, B.F., Alexeiev, D., Xiao,W., Kröner, A., Badarch, G., 2007. Tectonic models for accretion of the Central Asian Orogenic belt. Journal of the Geological Society 164, 31-47.
    Google ScholarLocate open access versionFindings
  • Wu, F.-Y., Lin, J.Q., Wilde, S.A., Zhang, X.O., Yang, J.H., 2005. Nature and significance of the Early Cretaceous giant igneous event in Eastern China. Earth and Planetary Science Letters 233, 103-119.
    Google ScholarLocate open access versionFindings
  • Wu, F.-Y., Walker, R.J., Yang, Y.-H., Yuan, H.-L., Yang, J.-H., 2006. The chemical-temporal evolution of lithospheric mantle underlying the North China Craton. Geochimica et Cosmochimica Acta 70, 5013-5034.
    Google ScholarLocate open access versionFindings
  • Xu, Y.G., 2001. Thermo-tectonic destruction of the Archaean Lithospheric Keel beneath the Sino-Korean Craton in China: evidence, timing and mechanism. Physics and Chemistry of the Earth (A) 26, 747-757.
    Google ScholarLocate open access versionFindings
  • Xu, Z., Zhao, Z.-F., Zheng, Y.-F., 2012. Slab-mantle interaction for thinning of cratonic lithospheric mantle in North China: Geochemical evidence from Cenozoic continental basalts in central Shandong. Lithos 146-147, 202-217.
    Google ScholarLocate open access versionFindings
  • Xu, Y.G. 2014. Recycled oceanic crust in the source of 90-40 Ma basalts in North and Northeast China: Evidence, provenance and significance. Geochimica et Cosmochimica
    Google ScholarLocate open access versionFindings
  • Yan J., Chen J. F., Xie Z., Gao T. S., Foland K. A., Zhang X. D. and Liu M. W., 2005. Studies on petrology and geochemistry of the late Cretaceous basalts and mantle-derived xenoliths from eastern Shandong. Acta Petrologica Sinica 21, 99-112.
    Google ScholarLocate open access versionFindings
  • Yang, J.H., Chung, S.L., Zhai, M.G., Zhou, X.H., 2004. Geochemical and Sr-Nd-Pb isotopic compositions of mafic dikes from the Jiaodong Peninsula, China: evidence for veinplusperidotite melting in the lithospheric mantle. Lithos 73, 145-160.
    Google ScholarLocate open access versionFindings
  • Yang, J.-H., Chung, S.-L., Wilde, S.A., Wu, F.-Y., Chu, M.-F., Lo, Q.-H., Fan, H.-R., 2005. Petrogenesis of post-orogenic syenites in the Sulu Orogenic Belt, East China: geochronological, geochemical and Nd-Sr isotopic evidence. Chemical Geology 214, 99-125.
    Google ScholarLocate open access versionFindings
  • Yang, J.H., Wu, F.Y., Wilde, S.A., Belousova, E., Griffin, W.L., 2008. Mesozoic decratonization of the North China Block. Geology 36, 467-470.
    Google ScholarLocate open access versionFindings
  • Yang, J.H., O'Reilly, S.Y., Walker, R.J., Griffin, W.L., Wu, F.Y., Zhang, M., Pearson, N., 2010. Diachronous decratonization of the Sino-Korean craton: geochemistry of mantle xenoliths from North Korea. Geology 38, 799-802.
    Google ScholarLocate open access versionFindings
  • Yang, D.-B., Xu, W.-L., Pei, F.-P., Yang, C.-H.,Wang, Q.-H., 2012a. Spatial extent of the influence of the deeply subducted South China Block on the southeastern North China Block: constraints from Sr-Nd-Pb isotopes in Mesozoic mafic igneous rocks. Lithos 136-139, 246-260.
    Google ScholarLocate open access versionFindings
  • Yang, Q.L., Zhao, Z.F., Zheng, Y.F., 2012b. Slab-mantle interaction in continental subduction channel, Geochemical evidence from Mesozoic gabbroic intrusives in southeastern North China. Lithos 155, 442-460.
    Google ScholarLocate open access versionFindings
  • Zhang H.-F. and Sun M., 2002. Geochemistry of Mesozoic basalts and mafic dikes in southeastern North China craton, and tectonic implication. International Geology Review
    Google ScholarLocate open access versionFindings
  • Zhang, H.F., Sun, M., Zhou, X.H., Zhou, M.F., Fan,W.M., Zheng, J.P., 2003. Secular evolution of the lithosphere beneath the eastern North China Craton: evidence from Mesozoic basalts and high-Mg andesites. Geochimica et Cosmochimica Acta 67, 4373-4387.
    Google ScholarLocate open access versionFindings
  • Zhang, H.F., Yang, Y.H., 2007. Emplacement age and Sr-Nd-Pb Hf isotopic characteristics of the diamondiferous kimberlites from the eastern North China Craton. Acta Petrologica Sinica 23, 285-294 Zhang, J., Zhang, H.F., Ying, J.F., Tang, Y.J., Niu, L.F., 2008. Contribution of subducted Pacific slab to Late Cretaceous mafic magmatism in Qingdao region, China: a petrological record. Island Arc 17, 231-241.
    Google ScholarLocate open access versionFindings
  • Zhang, J., Zhao, Z.-F., Zheng, Y.-F., Liu, X.-M., Xie, L.-W., 2012. Zircon Hf-O isotope and whole-rock geochemical constraints on origin of postcollisional mafic to felsic dykes in the Sulu orogen. Lithos 136-139, 225-245.
    Google ScholarLocate open access versionFindings
  • Zhang, J.-J., Zheng, Y.-F., Zhao, Z.-F., 2009. Geochemical evidence for interaction between oceanic crust and lithospheric mantle in the origin of Cenozoic continental basalts in east-central China. Lithos 110, 305-326 Zhang, S.H., Zhao, Y., Davis, G.A., Ye, H., Wu, F., 2014. Temporal and spatial variations of Mesozoic magmatism and deformation in the North China Craton: implications for lithospheric thinning and decratonization. Earth-Science Reviews 131, 49-87.
    Google ScholarLocate open access versionFindings
  • Zhao, G.C., Wilde, S.A., Cawood, P.A., Sun, M., 2001. Archean blocks and their boundaries in the North China Craton: lithological, geochemical, structural and P-T path constraints and tectonic evolution. Precambrian Research 107, 45-73.
    Google ScholarLocate open access versionFindings
  • Zhao, Z.F., Zheng, Y.F., Zhang, J., Dai, L.Q., Li, Q.L., Liu, X.M., 2012. Syn-exhumation magmatism during continental collision: evidence from alkaline intrusives of Triassic age in the Sulu orogen. Chemical Geology 328, 70-88.
    Google ScholarLocate open access versionFindings
  • Zhao, Z.-F., Dai, L.-Q., Zheng, Y.-F. 2013. Postcollisional mafic igneous rocks record crust-mantle interaction during continental deep subduction. Scientific Reports 3, 3413; doi:10.1038/srep03413.
    Findings
  • Zheng, J.P., Griffin, W.L., O'Reilly, S.Y., 2007. Mechanism and timing of lithospheric modification and replacement beneath the eastern North China Craton: peridotitic xenoliths from the 100 Ma Fuxin basalts and a regional synthesis. Geochimica et Cosmochimica Acta 71, 5203-5225.
    Google ScholarLocate open access versionFindings
  • Zheng, Y.-F., Wu, F.-Y., 2009. Growth and reworking of cratonic lithosphere. Chinese Science Bulletin 54, 3347-3353.
    Google ScholarLocate open access versionFindings
  • Zheng, Y.-F., 2012. Metamorphic chemical geodynamics in continental subduction zones. Chemical Geology 328, 5-48.
    Google ScholarLocate open access versionFindings
  • Zheng, Y.-F., Xiao, W.-J., Zhao, G.-C., 2013. Introduction to tectonics of China. Gondwana Research 23, 1189-1206.
    Google ScholarLocate open access versionFindings
  • Zheng, Y.F., Chen, Y.X., Dai, L.Q., Zhao, Z.F., 2015. Developing plate tectonics theory from oceanic subduction zones to collisional orogens. Science China: Earth Sciences 58, 1045-1069.
    Google ScholarLocate open access versionFindings
  • Zhu, R.X., Zheng, T.Y., 2009. Destruction geodynamics of the North China Craton and its Paleoproterozoic plate tectonics. Chinese Science Bulletin 54, 3354-3366.
    Google ScholarLocate open access versionFindings
  • Zhu, R.X., Chen, L., Wu, F.Y., Liu, J.L., 2011.
    Google ScholarLocate open access versionFindings
  • Zhu, R.X., Yang, J.H., Wu, F.Y., 2012. Timing of destruction of the North China Craton. Lithos 149, 51-60.
    Google ScholarLocate open access versionFindings
Your rating :
0

 

Tags
Comments