Log in

Characteristics of the mantle source region of sodium lamprophyres and petrogenetic tectonic setting in northeastern Hunan, China

  • Published:
Science in China Series D: Earth Sciences Aims and scope Submit manuscript

Abstract

A set of unique sodium lamprophyres is developed in the Cenozoic intraconti-nental extensional zone of northeastern Hunan. These lamprophyres are significantly different in major and trace elements and Sr, Nd isotopes from ordinary potassic lamprophyres. The rocks are characterized as being enriched in Na2O and high in TiO2 and weakly enriched in Nb, Ta, Nd and LREE with no negative Eu anomaly. The trace elements and Sr, Nd isotopic compositions are typical of the mantle source region of oceanic island basalts (OIB). The average initial 87Sr/86Sr ratio is 0.705332, and the average initial 143Nd/144Nd ratio is 0.512650, with ɛNd(t) being +3.5–+3.9, marking a mantle source region of unique sodium lamprophyres. The lamprophyres were formed by metasomatism of the primitive mantle at the bottom of lithosphere by vola-tile-containing fluids/melts from the asthenosphere. The measured Rb-Sr isochron age of sodium lamprophyre is 136.61 Ma, representing a period in which the tectonic setting changed from compressive to extensional. Sodium lamprophyres were formed in a mantle plume tectonic set-ting characterized by mantle upwelling from the asthenosphere within the continent. As-theno-spheric mantle upwelling is the principal geodynamic factor leading to the formation of sodium lamprophyres and constraining the Yanshanian intracontinental extensional activity in northeast-ern Hunan, China.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price includes VAT (Thailand)

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Zhai Mingguo, Yang **hui, Liu Wenjun, Large clusters of gold deposits and large-scale minerogenesis in Jiaodong Peninsula, eastern China, Science in China, Ser. D, 2001, 44(8): 758–768.

    Article  Google Scholar 

  2. Huang Zhilong, Liu Congqiang, Zhu Chengming et al., The Ori-gin of Lamprophyres in the Laowangzhai Gold Field, Yunnan Province and Their Relations with Gold Mineralization (in Chi-nese), Bei**g: Geological Publishing House, 1999, 30–112.

    Google Scholar 

  3. Li **anhua, Zhou Hanwen, Wei Gangjian et al., Geochemistry and Sr-Nd isotopes of Cenozoic ultrapotassic lamprophyres in western Yunnan: Constraints on the composition of sub-continental lithospheric mantle, Geochimica (in Chinese), 2002, 31(1): 26–34.

    Google Scholar 

  4. Zhang Yuquan, **e Yingwen, Li **anhua et al., Isotopic charac-teristics of shoshonitic rocks in eastern Qinghai-Tibet Plateau: Petrogenesis and its tectonic implication, Science in China, Ser. D, 2001, 44(1): 1–6.

    Article  Google Scholar 

  5. Fraser, K. J., Hawkesworth, J., Erlank, A. J. et al., Sr, Nd and Pb isotope and minor element geochemistry of lamproites and kim-berlites, Earth Planet Sci. Lett., 1985/1986, 76: 57–70.[DOI]

    Article  Google Scholar 

  6. Qiu Jiansheng, Wang Dezi, Trace element and Nd-Sr isotope studies of Cenozoic K-rich volcanic rocks and lamprophyres in western Shandong, Journal of Geology of Higher Learning Col-leges (in Chinese), 1997, 3(4): 384–395.

    Google Scholar 

  7. Fu Zhaoren, Li Zi**, Zhen Dayu, Structural patterns and tectonic evolution of NNE-trending strike-slip orogenic belt in the border region of Hunan and Jiangxi provinces, Earth Science Frontiers (in Chinese), 1999, (4): 263–272.

  8. Hunan Bureau of Geology and Mineral Resources, Regional Ge- ology of Hunan Province (in Chinese), Bei**g: Geological Publishing House, 1988, 417–467.

    Google Scholar 

  9. Qiu Jiaxiang, Petrology of Magmatic Rocks (in Chinese), Bei**g: Geological Publishing House, 1985, 161–165.

    Google Scholar 

  10. Rock, N. M. S., Lamprophyres, Glasgow: Blackie. 1990, 6–28.

  11. Lu Fengxiang, Shu **aoxin, Zhao Conghe, Suggestions on the classification of lamprophyres, Geological Science and Technology Information (in Chinese), 1991, 10 (supp.): 55–62.

    Google Scholar 

  12. Song **eyan, Hou Zengqian, Cao Zhimin et al., Geochemical characteristics and period of the Emeishan igneous province, Acta Geologica Sinica (in Chinese), 2001, 75(4): 498–506.

    Google Scholar 

  13. Rogers, N. W., Potassic magmatism as a key to trace-element enrichment processes in the upper mantle, J. Volcan. Geother. Res., 1992, 50: 85–99.

    Article  Google Scholar 

  14. Fitton, J. G., Dunlop, H. M., The Cameroon line, West Africa, and its bearing on the origin of oceanic and continental alkali basalt, Earth and Planetary Science Letters, 1985, 72: 23–38.

    Article  Google Scholar 

  15. Xu Yigang, Distribution of trace elements in spinel and garnet-phase olivines, Science in China (in Chinese), Ser. D, 2000, 30 (3): 307–314.

    Google Scholar 

  16. Münch, U., Nb/Ta fractionation in a Cambrian arc/back arc system, New Zealand: source constraints and application of refined ICPMS techniques, Chemical Geology, 1998, 144: 23–45.

    Article  Google Scholar 

  17. Taylor, S. R., McClennan, S., The Continental Crust: Composition and Evolution, Boston: Blackwell Scientific Publications, 1985, 209–230.

    Google Scholar 

  18. Weaver, B. L., The origin of ocean island basalt end-member composition: Trace element and isotopic constraints, Earth Planet Sci. Lett., 1991, 104: 381–397.

    Article  Google Scholar 

  19. Hart, S. R., Hauri, E. H., Oschmann, L. A. et al., Mantle plumes and entrainment: isotopic evidence, Science, 1992, 256: 517- 520.

    Article  Google Scholar 

  20. Stein M., Hofmann A. W., Mantle plumes and episodic crustal growth, Nature, 1995, 372: 63–68.

    Article  Google Scholar 

  21. Sun, J. G., Hu, S. X., Liu, J. M. et al., A study of Sr, Nd and O isotopes of the K-rich melanocratic dikes in the Late Mesozoic gold field in the Jiaodong Peninsula, Acta Geologica Sinica, 2001, 75(4): 432–444.

    Google Scholar 

  22. **e Guiqing, Peng Jiantang, Hu Ruizhong et al., Geochemical characteristics of lamprophyres in the **kuangshan antimony ore deposits, Hunan Province, Acta Petrologica Sinica (in Chinese), 2001, 17(4): 629–636.

    Google Scholar 

  23. Xu Deru, A study on the rock chemistry of lamprophyres in the Gezhen gold-bearing zone, Hainan Island, Geotectonica et Metallogenia (in Chinese), 1999, 23 (4):353–360.

    Google Scholar 

  24. Xu Hong, Xu Guang**, Geochemical characteristics and gene- sis of the lamprophyres in the Jiaodong gold district, Shandong Province, Acta Petrologica et Mineralogica (in Chinese), 2000, 19 (1): 36–43.

    Google Scholar 

  25. Yu Xuehui, Mo Xuanxue, Flower, M. et al., Cenozoic kamafugite volcanism and tectonic meaning in western Qinling, Gansu Province, Acta Petrologica Sinica (in Chinese), 2001, 17(3): 366–377.

    Google Scholar 

  26. Wang Yunliang, Zhang Chengjiang, **u Shuzhi, Th/Hf-Ta/Hf identification of tectonic setting of basalts, Acta Petrologica Sinica (in Chinese), 2001, 17(3): 413–421.

    Google Scholar 

  27. Storey, M., Saunders, A. D., Tarney, J. et al., Contasmination of Indian Ocean asthenosphere by the Kerguelen-Heard mantle plume, Nature, 1989, 338: 574–578.

    Article  Google Scholar 

  28. Hofmann, A. W., White, W. M., Mantle plumes from ancient oceanic crust, Earth Planet Sci. Lett., 1982, 57: 421–436.

    Article  Google Scholar 

  29. Zhang Benren, Magmatic activities from plume-source in the Qinling orogenic belt and its dynamic significance, Earth Science Frontiers (in Chinese), 2001, 8(3): 57–66.

    Google Scholar 

  30. Norry, M. J., Fitton, J. G., Composition differences between oceanic and continental basic lavas and significance, in Continental Basalts and Mantle Xenoliths (eds. Hawkesworth, C. J., Norry, M. J.),Nantwich: Shiva Pub., 1983, 5–19.

    Google Scholar 

  31. Hsu, K. J., Li, J. L., Chen, H. H. et al., Tectonics of south China: Key to understanding west Pacific geology, Tectonophysics, 1990, 183: 9–39.

    Article  Google Scholar 

  32. Morgan, W. J., Convection plumes in the lower mantle, Nature, 1971, 230: 42–43.

    Article  Google Scholar 

  33. Hofmann, A. W., White, W. M., Mantle plumes from ancient oceanic crust, Earth Planet Sci. Lett., 1982, 57: 421–436.[DOI]

    Article  Google Scholar 

  34. Jia Dacheng, Hu Ruizhong, Diagenesis tectonic setting and mobilizing form of granites rocks in tectonic mobilized epoch in northeastern Hunan Province, Geotectonica et Metallogenia (in Chinese), 2001, 25(4): 277–281.

    Google Scholar 

  35. Yuan Xuecheng, Taiwan-Heishui geoscience transect, in Annual Report of Chinese Geophysics Society (in Chinese), Bei**g: Seismological Publishing House, 1990, 12–36.

    Google Scholar 

  36. Zhao Zhenhua, Bao Zhiwei, Zhang Baiyou, Geochemical characteristics of Cenozoic basalts in south Hunan, Science in China (in Chinese), Ser. D, 1998, 28 (supp.): 7–14.

    Google Scholar 

  37. Xu Changhai, Zhou Zuyi, Geochronological constraints on (140– 85 Ma) thermal dome-extension in the Dabie orogen, central China, Science in China, Ser. D, 2002, 45(9): 801–817.

    Google Scholar 

  38. Currie, K. L., Willianms, P. R., An Archean cala-alkaline lampro- phyre suit, northeastern Yigarn Block, Western Australia, Lithos., 1993,31:33–50.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Dacheng Jia.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Jia, D., Hu, R., Lu, Y. et al. Characteristics of the mantle source region of sodium lamprophyres and petrogenetic tectonic setting in northeastern Hunan, China. Sci. China Ser. D-Earth Sci. 47, 559–569 (2004). https://doi.org/10.1360/02yd0174

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1360/02yd0174

Keywords

Navigation