Nature and secular evolution of the lithospheric mantle beneath the North China Craton

2021 ◽  
Author(s):  
Yanjie Tang ◽  
Jifeng Ying ◽  
Yuepeng Zhao ◽  
Xinrang Xu
Keyword(s):  
North China Craton ◽  
Lithospheric Mantle ◽  
North China ◽  
Secular Evolution ◽  
The North

Secular evolution of the lithospheric mantle beneath the northern margin of the North China Craton: Insights from zoned olivine xenocrysts in Early Cretaceous basalts

2020 ◽  
Vol 132 (11-12) ◽  
pp. 2353-2366
Author(s):  
Yao Xu ◽  
Hongfu Zhang
Keyword(s):  
Early Cretaceous ◽  
North China Craton ◽  
Lithospheric Mantle ◽  
North China ◽  
Mantle Xenoliths ◽  
Liaoning Province ◽  
Northern Margin ◽  
Secular Evolution ◽  
The North ◽  
Peridotitic Mantle

Abstract Abundant zoned olivine xenocrysts from Early Cretaceous basalts of the Yixian Formation in western Liaoning Province, China, contain critical information about the nature and evolution of the lithospheric mantle of the northern North China Craton. These olivine xenocrysts are large (600–1600 µm), usually rounded and embayed, with well-developed cracks. Their cores have high and uniform forsterite (Fo) contents (88–91), similar to the peridotitic olivine entrained by regional Cenozoic basalts. Their rims have much lower Fo contents (74–82), comparable to phenocrysts (72–81) in the host basalts. These characteristics reveal that the zoned olivine has been disaggregated from mantle xenoliths and thus can be used to trace the underlying lithospheric mantle at the time of basaltic magmatism. The olivine cores have high oxygen isotope compositions (δ18OSMOW = 5.9–7.0‰) relative to the normal mantle value, suggesting that the Early Cretaceous lithospheric mantle was enriched and metasomatized mainly by melts/fluids released from subducted oceanic crust that had experienced low-temperature hydrothermal alteration. Preservation of zoned olivine xenocrysts in the Early Cretaceous basalts indicates that olivine-melt/fluid reaction could have been prevalent in the lithospheric mantle as an important mechanism for the transformation from old refractory (high-Mg) peridotitic mantle to young, fertile (low-Mg), and enriched lithospheric mantle during the early Mesozoic.

scholarly journals Abnormal lithium isotope composition from the ancient lithospheric mantle beneath the North China Craton

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Yan-Jie Tang ◽  
Hong-Fu Zhang ◽  
Etienne Deloule ◽  
Ben-Xun Su ◽  
Ji-Feng Ying ◽  
...  
Keyword(s):  
North China Craton ◽  
Lithospheric Mantle ◽  
North China ◽  
Isotope Composition ◽  
Lithium Isotope ◽  
The North

Refertilization of lithospheric mantle beneath the North China Craton in Mesozoic: Evidence from in situ Sr isotopes of Fuxin peridotite

Lithos ◽  
2020 ◽  
Vol 364-365 ◽  
pp. 105478 ◽  
Author(s):  
Dongya Zou ◽  
Hongfu Zhang ◽  
Xiaoqi Zhang ◽  
Huiting Zhang ◽  
Benxun Su
Keyword(s):  
North China Craton ◽  
Lithospheric Mantle ◽  
North China ◽  
Sr Isotopes ◽  
The North

Thinning and destruction of the lithospheric mantle root beneath the North China Craton: A review

2019 ◽  
Vol 196 ◽  
pp. 102873 ◽  
Author(s):  
Jingao Liu ◽  
Ronghua Cai ◽  
D. Graham Pearson ◽  
James M. Scott
Keyword(s):  
North China Craton ◽  
Lithospheric Mantle ◽  
North China ◽  
The North
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