10.6084/m9.figshare.3452849
Chao Yuan
Chao
Yuan
Min Sun
Min
Sun
Yigang Xu
Yigang
Xu
Guochun Zhao
Guochun
Zhao
Wenjiao Xiao
Wenjiao
Xiao
Xiaoping Long
Xiaoping
Long
Jiyuan Yin
Jiyuan
Yin
Oceanic lithospheric mantle beneath the continental crust of the Chinese Altai
Geological Society of London
2016
lithospheric mantle
lithospheric mantle forms
crust
Chinese Altai
field strength elements
Ashele basalt
Phanerozoic continents
Oceanic lithospheric mantle
subduction
oceanic lithospheric mantle
Geology
2016-06-21 10:21:50
Dataset
https://geolsoc.figshare.com/articles/dataset/Oceanic_lithospheric_mantle_beneath_the_continental_crust_of_the_Chinese_Altai/3452849
<p>Although subduction–accretion is proposed as a major regime in making new continental crust, how the lithospheric mantle forms
remains unclear. Formed after the closure of the Palaeo-Asian Ocean, the Ashele basalt shows normal mid-ocean ridge basalt
(N-MORB)-like characteristics with light REE-depleted patterns and extremely low contents of high field strength elements.
The low Zr/Y and Nb/Y ratios of the basalt are significantly different from those of asthenosphere-derived melts, and the
excess Eu and Sr suggest that the basalt was probably derived from accreted oceanic lithospheric mantle. The presence of the
N-MORB-like terrestrial basalt implies that subduction–accretion is an effective mechanism in building the refractory lithospheric
mantle of Phanerozoic continents.
</p>