Mesozoic lithosphere destruction beneath the North China Craton: evidence from major-, trace-element and Sr–Nd–Pb isotope studies of Fangcheng basalts

Major- and trace-element as well as Sr-Nd-Pb isotopic data of the Mesozoic Fangcheng basalts provide an insight into the nature of their mantle source and the secular evolution of the lithospheric mantle beneath the North China Craton. Fangcheng basalts include alkali basalt and olivine tholeiite, b...

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Bibliographic Details
Published in:Contributions to mineralogy and petrology 2002-11, Vol.144 (2), p.241-254
Main Authors: Zhang, Hong-Fu, Sun, Min, Zhou, Xin-Hua, Fan, Wei-Ming, Zhai, Ming-Guo, Yin, Ji-Feng
Format: Article
Language:English
Subjects:
Basalt
Cenozoic
Isotope studies
Lithosphere
Mesozoic
Mineralogy
Paleozoic
Petrology
Trace elements
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Summary:Major- and trace-element as well as Sr-Nd-Pb isotopic data of the Mesozoic Fangcheng basalts provide an insight into the nature of their mantle source and the secular evolution of the lithospheric mantle beneath the North China Craton. Fangcheng basalts include alkali basalt and olivine tholeiite, both characterized by high Mg (Mg#=65-72), Si, and Ca and low K+Na, Ti, and P. They are extremely enriched in LREEs ((La/Yb)N=39.3-49.3) and LILEs (Ce, Rb, Ba, U, Th) and depleted in HFSEs (Nb, Ta, Zr, Hf, Ti), with slightly negative Pb anomaly. Correspondingly, these basalts are exceedingly high in Sr (74.0~81.5) and low in Nd (-13.1~-14.2) and 206Pb/204Pb (
ISSN:0010-7999
1432-0967
DOI:10.1007/s00410-002-0395-0