Lateral variation in oxygen fugacity and halogen contents in early Cretaceous magmas in Jiaodong area, East China: Implication for triggers of the destruction of the North China Craton

Lithos ◽  
2016 ◽  
Vol 248-251 ◽  
pp. 478-492 ◽  
Author(s):  
Xiao-Long Huang ◽  
Peng-Li He ◽  
Xue Wang ◽  
Jun-Wei Zhong ◽  
Yi-Gang Xu
Keyword(s):  
Oxygen Fugacity ◽  
Early Cretaceous ◽  
North China Craton ◽  
North China ◽  
East China ◽  
Lateral Variation ◽  
The North

Early Cretaceous extensional allochthons in the Taihang Shan associated with destruction of the North China Craton

2021 ◽  
pp. 104933
Author(s):  
Wuke Chen ◽  
Yi Liufu ◽  
Lei Wu ◽  
Chenyu Zhang ◽  
Hongwei Zhang ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
North China Craton ◽  
North China ◽  
The North

Crust–Mantle Interaction Recorded by Early Cretaceous Volcanic Rocks within the Southern Margin of the North China Craton

2021 ◽  
Author(s):  
An-Qi Wang ◽  
Debin Yang ◽  
Wen-Liang Xu ◽  
Hao-Tian Yang ◽  
Mao-Song Mu ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
North China Craton ◽  
North China ◽  
Volcanic Rocks ◽  
The North ◽  
Southern Margin

Early Cretaceous Xiuyan adakitic granitoids in the Liaodong Peninsula, eastern China: petrogenesis and implications for lithospheric thinning of the North China Craton

2021 ◽  
Vol 58 (1) ◽  
pp. 50-66
Author(s):  
Yang Dong ◽  
Jingdang Liu ◽  
Yanfei Zhang ◽  
Shiyong Dou ◽  
Yanbin Li ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
North China Craton ◽  
Lower Crust ◽  
North China ◽  
Eastern China ◽  
Lithospheric Thinning ◽  
The North ◽  
Magma Sources ◽  
Liaodong Peninsula ◽  
T Values

Mesozoic magmatic rocks are widely distributed in the North China Craton (NCC) and are crucial to understanding the timing, location, and geodynamic mechanisms of lithospheric thinning of the NCC. In this study, we report geochronological, petrogeochemical, and Lu–Hf isotopic data for adakitic granitoids from different parts of Xiuyan pluton in the Liaodong Peninsula, aiming to constrain their magma sources, petrogenesis, and tectonic implications. The adakites are metaluminous to weakly peraluminous and are classified as high-K calc-alkaline I-type granite with Early Cretaceous zircon U–Pb ages of 129–126 Ma. They exhibit adakite-like geochemical characteristics, such as high Sr content and low Yb and Y contents, coupled with high Sr/Y and no pronounced Eu anomalies. They are enriched in Rb, U, and light rare-earth elements and are depleted in Ta, Nb, P, and Ti. The adakites from the eastern part of the pluton have low εHf(t) values (–8.5 to –4.0) with old TDM2 ages (1.57–1.31 Ga), indicating they were derived from the lower crust containing juvenile mantle-derived materials. In contrast, adakites from the northern part of the pluton have lower εHf(t) values (–19.7 to –16.6) with older TDM2 ages (2.21–2.03 Ga), indicating that they were derived mainly from an ancient crust. Our results show that both adakitic magmas were derived from partial melting of delaminated lower crust. Their relatively high MgO and Ni contents and Mg# values indicate that the melts interacted with mantle peridotites. The lower crust delamination beneath the Liaodong Peninsula resulted from paleo-Pacific plate subduction during the Early Cretaceous, which resulted in thinning of Mesozoic crust in the Xiuyan area.

Multistage crust–mantle interactions during the destruction of the North China Craton: Age and composition of the Early Cretaceous intrusions in the Jiaodong Peninsula

Lithos ◽  
2014 ◽  
Vol 190-191 ◽  
pp. 52-70 ◽  
Author(s):  
Huayun Tang ◽  
Jianping Zheng ◽  
Chunmei Yu ◽  
Xianquan Ping ◽  
Hongwei Ren
Keyword(s):  
Early Cretaceous ◽  
North China Craton ◽  
North China ◽  
The North ◽  
Jiaodong Peninsula

Crustal deformation and dynamics of Early Cretaceous in the North China Craton

2021 ◽  
Author(s):  
Guang Zhu ◽  
Yuanchao Lu ◽  
Nan Su ◽  
Xiaodong Wu ◽  
Hao Yin ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Crustal Deformation ◽  
North China Craton ◽  
North China ◽  
The North
Sign in / Sign up

Export Citation Format

Share Document