scholarly journals Early Permian Granitic Magmatism in Middle Part of the Northern Margin of the North China Craton: Petrogenesis, Source, and Tectonic Setting

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 99
Author(s):  
Longxue Li ◽  
Qingye Hou ◽  
Dingling Huang ◽  
Xinyu Wang
Keyword(s):  
North China Craton ◽  
North China ◽  
Magma Mixing ◽  
Tectonic Setting ◽  
Middle Part ◽  
Early Permian ◽  
Northern Margin ◽  
Inductively Coupled ◽  
The North ◽  
Type Granite

The late Palaeozoic was an important period of tectonic evolution for the northern margin of the North China Craton (NCC). The source(s) and tectonic setting of early Permian granitoid rocks emplaced along the northern margin of the NCC are still unclear. These granitoids formed between ~295.4–276.1 Ma (uncertainties ranging from ±1.5 to ±7.8 Ma) according to zircon laser ablation inductively coupled mass spectrometry (LA-ICP-MS) and sensitive high-resolution ion microprobe (SHRIMP) U-Pb data. The Dadongou (DDG) pluton is an A1-type granite and the Dananfangzi (DNFZ) pluton is an A2-type granite. The Erdaowa (EDW), Lisicun (LSC), Wuhai (WH) and Gehuasitai (GHST) plutons are I-type granites. The Yuanbaoshan (YBS) dykes are diorite and syenodiorite. All the granitoids are enriched in large ion lithophile elements and light rare earth elements, depleted in high field strength elements and have negative εNd(t) and εHf(t) values. The A1-type granite was formed by the melting of the mafic crust. The A2-type granite was derived from partial melting of tonalite gneiss from the NCC crust and mantle materials. The EDW, LSC, WH and GHST granites mainly originated from partially melted granulite, with some mantle input. The YBS dykes are formed by the magma mixing of hot mantle melt and the relatively cold crustal magma. The northern margin of the NCC experienced anorogenic and collision tectonic stages, and the structural setting started to transform to post-collision at the later period of early Permian.

scholarly journals Fluid Inclusions and C-H-O-S-Pb Isotope Systematics of the Changfagou Deposit, Jilin Province, Northeast China

Geofluids ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-21 ◽  
Author(s):  
Bo Peng ◽  
Bile Li ◽  
Jun Chen
Keyword(s):  
Partial Melting ◽  
North China Craton ◽  
Lower Crust ◽  
North China ◽  
Tectonic Setting ◽  
Ore Deposits ◽  
Jilin Province ◽  
Magmatic Fluid ◽  
Northern Margin ◽  
The North

The Changfagou Cu deposit in Jilin province, China, is located in the eastern segment of the northern margin of the North China Craton and lies at the southern end of the Lesser Xing’an Mountains-Zhanggangcailing Mountains. According to the mineral paragenetic association and its various relationships, the hydrothermal mineralization can be divided into 4 metallogenic stages from early to late: stage I is K-feldspar-quartz-magnetite, stage II is quartz-molybdenite, stage III is quartz-chalcopyrite (polymetallic sulfide), and stage IV is carbonate. Stages II and III are the main metallogenic stages. Overall, the metallogenic fluid associated with the Changfagou deposit is characterized as a F-rich CO2-H2O-NaCl hydrothermal system. The hydrogen and oxygen isotopic characteristics suggest the initial ore-forming fluids of the Changfagou deposit evolved from a primitive magmatic fluid and mixed with meteoric water. The sulfur and lead isotopic characteristics show that the metallogenic material was derived from partial melting of the lower crust. Phase separation or immiscibility is the important mechanism in the precipitation of molybdenum, whereas a decrease in temperature is the important mechanism in the precipitation of copper polymetallic sulfides. The above characteristics are similar to those of the porphyry deposits related to continental environments. Compared with the deposits in the Xilamulun metallogenic belt, both have similar metallogenic ages and tectonic positions. In conclusion, the Changfagou deposit formed in an intracontinental extensional environment due to lithospheric thinning. The mineralization was related to magmatism associated with partial melting of the lower crust. The intersection of the Dunhua-Mishan fracture and Kangbao-Chifeng fracture along the northern margin of the North China Craton is a promising location for porphyry ore deposits related to a continental tectonic setting.

Ca. 1318Ma A-type granite on the northern margin of the North China Craton: Implications for intraplate extension of the Columbia supercontinent

Lithos ◽  
2012 ◽  
Vol 148 ◽  
pp. 1-9 ◽  
Author(s):  
Yuruo Shi ◽  
Dunyi Liu ◽  
Alfred Kröner ◽  
Ping Jian ◽  
Laicheng Miao ◽  
...  
Keyword(s):  
North China Craton ◽  
North China ◽  
Northern Margin ◽  
The North ◽  
Columbia Supercontinent ◽  
Type Granite

scholarly journals Petrogenesis and tectonic significance of the Mengjiaping beschtauite in the southern Taihang mountains

2021 ◽  
Vol 13 (1) ◽  
pp. 1711-1731
Author(s):  
Haofei Tian ◽  
Ganyu Li ◽  
Jinyong Choi ◽  
Wenlou Luan ◽  
Xingtao Cui ◽  
...  
Keyword(s):  
North China Craton ◽  
Inductively Coupled Plasma ◽  
North China ◽  
North China Block ◽  
Inductively Coupled ◽  
The North ◽  
Tholeiite Series ◽  
Plasma Mass Spectrometry ◽  
Type Granite ◽  
High Aluminum

Abstract The evolution process of the North China Craton has been discussed by many scholars; however, the frame for the timing of the Trans-North China Block has not been fully agreed upon. Related research has mostly focused on the northern and southern sections of the Trans-North China Block, and in-depth studies on intrusive rocks in the central region are lacking. In this study, we conduct a systematic study of the petrography, the whole-rock geochemistry, and the zircon U–Pb dating for the beschtauite intrusion, located in the Mengjiaping area of the Southern Taihang Mountains. Our results demonstrate that the dyke intrusion is mainly composed of beschtauite. Laser ablation inductively coupled plasma mass spectrometry zircon U–Pb dating shows that the beschtauite intrusion occurred at ∼1,880 ± 69 Ma. The beschtauite belongs to I-type granite, Arc tholeiite series, and Cale-alkaline series, with low total alkali, low potassium, and high aluminum. They are also enriched in large-ion lithophile elements, relatively depleted in high-field strength elements, and low total rare-earth elements. Based on the abovementioned data, it is suggested that the magmas for the beschtauite intrusion were metasomatized by oceanic slab subduction in the Late Paleoproterozoic. The formation time of the North China Craton basement should be set to after 1,880 Ma.

Geochronology, petrogenesis, and tectonic implications of the Early Permian volcanic rocks in the northern margin of the North China Craton

2018 ◽  
Vol 54 (3) ◽  
pp. 1535-1553
Author(s):  
Jialiang Li ◽  
Zhiguang Zhou ◽  
Chen Wu ◽  
Yuegu Wang ◽  
Guosheng Wang ◽  
...  
Keyword(s):  
North China Craton ◽  
North China ◽  
Volcanic Rocks ◽  
Early Permian ◽  
Northern Margin ◽  
The North ◽  
Tectonic Implications
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