Lyell Collection
Journal of the Geological Society
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Zhang, H.-F.
Right arrow Articles by Cai, Y.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Journal of the Geological Society; 2009; v. 166; issue.2; p. 249-259;
DOI: 10.1144/0016-76492007-152
© 2009 Geological Society of London

Research Article

Comprehensive refertilization of lithospheric mantle beneath the North China Craton: further Os–Sr–Nd isotopic constraints

Hong-Fu Zhang1, Steven L. Goldstein2, Xin-Hua Zhou1, Min Sun3 & Yue Cai2

1 State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences,PO Box 9825, Beijing 100029, China
2 Lamont–Doherty Earth Observatory and Department of Earth and Environmental Sciences, Columbia University,61 Rt. 9W, Palisades, NY 10964, USA
3 Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong, China

*Corresponding author (e-mail: hfzhang{at}mail.igcas.ac.cn)

Mantle peridotitic xenoliths in Cenozoic basalts from Hannuoba, on the northern margin of the Archaean North China Craton, have variable Re (0.01–0.30 ppb) and Os (2.7–6.2 ppb) abundances and 187Os/188Os (0.1138–0.1236) ratios. These xenoliths yield a range of Proterozoic Re depletion ages of 0.8–2.2 Ga that show a general correlation with olivine Fo. Mantle xenoliths in Cenozoic basalts from the centre and southern margin of the North China Craton also overwhelmingly show Proterozoic Re depletion ages that correlate with olivine Fo. These Re–Os age features are completely different from those of Palaeozoic kimberlite-borne peridotitic xenoliths, which have Archaean ages. This age distinction between xenoliths associated with Palaeozoic and Cenozoic volcanism indicates that the present-day lithospheric mantle was dominantly not newly accreted during the Phanerozoic but instead was transformed from the ancient lithospheric mantle by interaction with melts. The Re–Os data in combination with the geochemical and Sr–Nd isotopic features of peridotitic xenoliths from the Cenozoic basalts of the North China Craton demonstrate the presence of multiple stages of mantle metasomatic overprints in the lithospheric mantle. This study thus further indicates that lithospheric transformation through melt–rock interaction could be an important mechanism for compositional refertilization during the Phanerozoic.

Supplementary material: Analytical methods and geochemical data are available at http://www.geolsoc.org.uk/SUP18334.





This article has been cited by other articles:


Home page
 J PetrologyHome page
Z.-Y. Chu, F.-Y. Wu, R. J. Walker, R. L. Rudnick, L. Pitcher, I. S. Puchtel, Y.-H. Yang, and S. A. Wilde
Temporal Evolution of the Lithospheric Mantle beneath the Eastern North China Craton
J. Petrology, 2009; 50: 1857 - 1898.
[Abstract] [Full Text] [PDF]