Geochronology and geochemistry of granites from the Hengjian area, Qinling Orogenic Belt: Implications for the Late Palaeozoic tectonic evolution of the North Qinling Terrane, China

2021 ◽  
Author(s):  
Xu Han ◽  
Longming Li ◽  
Shoufa Lin ◽  
Shenglian Ren ◽  
Tao Liang ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Orogenic Belt ◽  
Qinling Orogenic Belt ◽  
The North ◽  
Late Palaeozoic ◽  
North Qinling

scholarly journals Provenance and tectonic implications of the Yanshi bauxite area in Western Henan, China

2021 ◽  
Vol 261 ◽  
pp. 03058
Author(s):  
Fengyu Sun ◽  
Gaoshe Cao ◽  
Qikai Zhou
Keyword(s):  
North China ◽  
Orogenic Belt ◽  
Detrital Zircons ◽  
Early Paleozoic ◽  
North China Block ◽  
Qinling Orogenic Belt ◽  
The North ◽  
Icp Ms ◽  
Study Support ◽  
North Qinling

The bauxite layer in Western Henan supplies a large number of bauxite ores and is useful for studying tectonic movement. In this paper, the bauxite samples were selected to carry out LA-ICP-MS detrital zircons U-Pb dating and Hf isotope testing. The results indicated that the detrital zircons with the Early Paleozoic ages were mainly derived from the North Qinling Orogenic Belt. The detrital zircons of the Precambrian age may be derived mainly from the basement of the North China Block and the North Qinling Orogenic Belt. The results of this study support the opinion that the North Qinling Orogenic Belt has been uplifted at ~310 Ma, and the surface of the southern craton has an overall north-dipping topography at this time.

scholarly journals Early Triassic Conversion from Source to Sink on the Southern Margin of the North China Craton: Constraints by Detrital Zircon U-Pb Ages

Minerals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 7
Author(s):  
Yanpeng Wang ◽  
Wentao Yang ◽  
Shenyuan Peng ◽  
Shuaishuai Qi ◽  
Deshun Zheng
Keyword(s):  
Detrital Zircon ◽  
North China Craton ◽  
North China ◽  
Source Region ◽  
Orogenic Belt ◽  
Early Triassic ◽  
Qinling Orogenic Belt ◽  
The North ◽  
Southern Margin ◽  
North Qinling

Provenance analysis of sediments provides important constraints on basin formation and orogenic processes. With the aim to define the sedimentary provenance and tectonic evolution of the southern margin of the North China Craton, this paper presents new detrital zircon U-Pb data from Early Triassic sediments in the Yiyang area. The results showed major peaks at 1848, 458, 425, and 268 Ma and subordinate peaks at ca. 2500, 872, and 957 Ma on age spectra from the Liujiagou Formation. The Heshanggou Formation exhibited a major age peak at 445 Ma and subordinate peaks at 755 and 947 Ma. Integrated with the analysis of sandstone detrital compositions, we suggest that the sources of the Liujiagou Formation were mainly a mixture of the southern margin of the North China Craton and the North Qinling Orogenic Belt, whereas the Heshanggou Formation was derived primarily from the North Qinling Orogenic Belt. Age comparisons of detrital zircon geochronology collected from different basins in the North China Craton indicated that the paleogeography of the North China Craton during the Early Triassic was strongly asymmetric, wherein the uplifted highland along the southern margin of the North China Craton was relatively lower than the northern margin. Meanwhile, the marked shift in source region from the Liujiagou to the Heshanggou formations provides a constraint regarding the conversion from denuded zone to deposited zone along the southern margin of the North China Craton in the Early Triassic, which controlled the evolution of the provenance and sedimentary system.

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