High-Mg Dioritic Magmas Generated via Fractional Crystallization: Insights from Early Cretaceous Complex in the Handan-Xingtai District, North China Craton

2021 ◽  
Author(s):  
Yi Sun ◽  
Tao Wu ◽  
Long Xiao ◽  
Ming Bai ◽  
Jingxuan Zhang ◽  
...  
Keyword(s):  
Fractional Crystallization ◽  
Early Cretaceous ◽  
North China Craton ◽  
North China

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

The Early Cretaceous Yangzhaiyu Lode Gold Deposit, North China Craton: A Link Between Craton Reactivation and Gold Veining

2012 ◽  
Vol 107 (1) ◽  
pp. 43-79 ◽  
Author(s):  
J.-W. Li ◽  
Z.-K. Li ◽  
M.-F. Zhou ◽  
L. Chen ◽  
S.-J. Bi ◽  
...  
Keyword(s):  
Gold Deposit ◽  
Early Cretaceous ◽  
North China Craton ◽  
North China ◽  
Lode Gold ◽  
Lode Gold Deposit

scholarly journals Geochemical Evidence for Thickening and Thinning of Lower Crust beneath the Jiaodong Peninsula: Implications for Late Mesozoic Destruction of the Eastern North China Craton

Lithosphere ◽  
2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
YaYun Liang ◽  
Wenhui Guo ◽  
Yao Ma ◽  
Enquan Zhao
Keyword(s):  
Continental Crust ◽  
Early Cretaceous ◽  
North China Craton ◽  
Late Jurassic ◽  
North China ◽  
Temporal Variations ◽  
Late Mesozoic ◽  
Jiaodong Peninsula ◽  
Intrusive Rocks ◽  
Subducting Slab

Abstract The eastern North China Craton (NCC) has been recognised as undergoing cratonic destruction during the Mesozoic; however, the mechanism of its destruction is still unclear. The main difference between the proposed models is whether the lower continental crust (LCC) underwent thinning. In this study, we conducted comprehensive analyses of Late Mesozoic felsic intrusive rocks, including Late Jurassic granites (166–146 Ma), Early Cretaceous granodiorites (136–123 Ma), and latest Early Cretaceous granites (123–108 Ma) from the Jiaodong Peninsula, located on the southeastern margin of the NCC. These rocks allowed us to investigate variations in the LCC thickness in this region and to further discuss the destruction mechanism of the eastern NCC. Here, temporal variations in crustal thickness can be tracked using whole-rock La/Yb ratios of the felsic intrusive rocks. Our study shows that the continental crust in the eastern NCC thickened during the Late Jurassic (>40 km) due to compression and the westward subduction of the Palaeo-Pacific Ocean lithosphere beneath the NCC since the Early Jurassic. The continental crust further thickened during the Early Cretaceous, caused by the steepening of the subducting slab after ~144 Ma that produced crustal underplating of mantle-derived melts in an extensional setting. However, the continental crust thinned (20–40 km) during the latest Early Cretaceous, caused by the rollback of the subducting slab after ~123 Ma. The geochemical compositions of three stages of felsic intrusions also suggest that the regional tectonic stress that affects the eastern NCC altered from a compressional to an intraplate extensional environment after ~144 Ma. Thus, the Late Mesozoic destruction of the eastern NCC and its accompanying magmatism were controlled by prolonged thermomechanical-chemical erosion due to low-angle subduction, steepening, and rollback of the Palaeo-Pacific Oceanic lithosphere.

Generation of leucogranites via fractional crystallization: A case study of the Jurassic Bengbu granite in the southeastern North China Craton

Lithos ◽  
2020 ◽  
Vol 352-353 ◽  
pp. 105271 ◽  
Author(s):  
Chao Li ◽  
Jun Yan ◽  
Chao Yang ◽  
Chuan-Zhong Song ◽  
Ai-Guo Wang ◽  
...  
Keyword(s):  
Fractional Crystallization ◽  
North China Craton ◽  
North China
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