Abstract
Wudalianchi volcanic rocks are the most typical Cenozoic potassic volcanic rocks in eastern China. Compositional comparisons between whole rocks and glasses of various occurrences indicate that the magma tends to become rich in silica and alkalis as a result of crystal differentiation in the course of evolution. They are unique in isotopic composition with more radiogenic Sr but less radiogenic Pb.87Sr /86 Sr is higher and143Nd/144Nd is lower than the undifferentiated global values. In comparison to continental potash volcanic rocks, Pb isotopes are apparently lower. These various threads of evidence indicate that the rocks were derived from a primary enriched mantle which had not been subjected to reworking and shows no sign of incorporation of crustal material. The correlation between Pb and Sr suggests the regional heterogeneity in the upper mantle in terms of chemical composition.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Zhang Ming,Bulktin of Wuhan Geological College, 1 (1984), 87–99 (in Chinese).
Fu Shiling, Wang Songshan et al.,Petrological Research, 2 (1983), 22–31 (in Chinese).
Ogura, T. et al.,Journal of Geology 43 (1936), 191 (in Japanese).
Zhao Zhongpu,Acta Geologica Sinica, 36, 3 (1956), 315–367 (in Chinese).
Xia Linqi et al.,Acta Mineralogica Sinica, 6, 1 (1986), 51–58 (in Chinese).
Zhou Xinghua and Armstrong, R.L.,Earth Planet. Sci. Letters,58, 3 (1982), 301–329.
Chen Daogong and Peng Zicheng,Geochimica,4 (1985), 293–303 (in Chinese).
Vollmer, R. and Norry, M.J.,Earth Planet. Sci. Letters,64, 3 (1983), 374–386.
Vollmer, R., Ogden, P. Schilling, J. G., Kingsley, R. H. and Waggoner, D. G.,Contrib. Mineral. Petrol., 87, 4 (1984), 359–368.
Hawkesworth, C. J. and VoUmer, R.,Contrib. Mineral. Petrol., 69, 2 (1979), 151–165.
White, W.M. and Hofmann, A.W.,Nature, 296, 5860 (1982), 821–825.
Tatsumoto, M.Earth Planet. Sci. Letters, 6, 5 (1969), 369–376.
Cooper, J.A. and Richards, J.R.,Earth Planet. Sci. Letters, 1, 3 (1966), 259–269.
Tatsumoto, M.,Science, 153, 3740 (1966b), 1094–1101.
Masuda, A.,Geochim, Cosmochim. Acta, 28, 3 (1964), 291–303.
Somayajulu, B.L.K., Tatsumoto, M., Rosholt, J.N., Knight, R.J.,Earth Planet. Sci. Letters, 1, 4 (1966) 387–391.
Hedge, C.E. and Knight, R.J.,Japan. Geochem. J., 3, 1 (1969), 15–24.
Kurasawa, H.,Japan. Geochem. J., 2, 1 (1968), 11–28.
Tatsumoto, M. and Knight, R.J.,Geochem. J., 3, 1 (1969), 53–86.
Patterson, C.C. and Duffield, B.,Geochim. Cosmochim. Acta, 27, 11 (1963), 1180–1181.
Tatsumoto, M.,J.Geophys. Res., 71, 6 (1966a), 1721–1733.
Patterson, C.C. and Tatsumoto, M.,Geochim. Cosmochim. Acta, 28, 1 (1964), 1–22.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Junwen, W., Guanghong, X., Tatsumoto, M. et al. Sr, Nd, Pb Isotope geochemistry and magma evolution of the potassic volcanic rocks, Wudalianchi, Northeast China. Chin. J. of Geochem. 8, 322–330 (1989). https://doi.org/10.1007/BF02837837
Issue Date:
DOI: https://doi.org/10.1007/BF02837837