Final Closure of the Paleo‐Asian Ocean and Onset of Subduction of Paleo‐Pacific Ocean: Constraints From Early Mesozoic Magmatism in Central Southern Jilin Province, NE China

2019 ◽  
Vol 124 (3) ◽  
pp. 2601-2622 ◽  
Author(s):  
Feng Wang ◽  
Wen‐Liang Xu ◽  
Kai‐Chen Xing ◽  
Yi‐Ni Wang ◽  
Hai‐Hong Zhang ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Jilin Province ◽  
Ne China ◽  
Early Mesozoic ◽  
Mesozoic Magmatism ◽  
Final Closure

scholarly journals The Late Triassic Molasse Deposits in Central Jilin Province, NE China: Constraints on the Paleo-Asian Ocean Closure

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 223
Author(s):  
Zuozhen Han ◽  
Jingjing Li ◽  
Chenlin Zhu ◽  
Wenjian Zhong ◽  
Zhigang Song
Keyword(s):  
Jilin Province ◽  
Granitic Rocks ◽  
Late Triassic ◽  
Ne China ◽  
High Field Strength ◽  
Zircon Age ◽  
Second Stage ◽  
Magmatic Rocks ◽  
Isotopic Analyses ◽  
Final Closure

This paper presents a new detailed study including zircon U-Pb-Hf isotopic, whole-rock geochemical and Sr-Nd isotopic analyses of conglomerate and granitic pebbles from the molasse deposits in central Jilin Province, NE China. These data are used to better constrain the Late Permian–Triassic tectonic evolution regarding particularly the final closure of the Paleo-Asian Ocean (PAO) along the Changhun-Yanji suture (CYS). Zircon U-Pb data indicate that the granitic pebbles formed in the end-Permian (254–253 Ma). The youngest detrital zircon age of 231 Ma from the conglomerate, and presence of the overlying Upper Triassic Sihetun Formation suggests that the molasse deposits on the Jin′gui Island formed during the Late Triassic. The end-Permian granitic rocks display high SiO2 (66.07–74.77 wt %), with low MgO (0.55–2.05 wt %) and Mg# (31.61–43.64) values, together with depleted Hf and Nd isotopic values (εHf(t) = +1.61 to +11.62; εNd(t) = +3.3 to +4.2; (87Sr/86Sr)i = 0.706458–0.706842) and juvenile second-stage Hf model ages (1148–512 Ma), suggesting that they were probably generated by the partial melting of a Meso-Neoproterozoic juvenile metabasaltic lower crust. They are characterized by enrichments in large ion lithophile elements (LILEs) and depletions in high field strength elements (HFSEs), with affinities to igneous rocks forming in a subduction-related setting. This, combined with regional coeval subduction-related magmatic rocks, indicates that the PAO still existed along the CYS. In addition, the identification of Late Triassic molasse deposits on the Jin′gui Island in this study, coupled with occurrences of many Early Triassic syn-collisional granitoids along the CYS, indicates that the final closure of the PAO took place prior to the Late Triassic.

scholarly journals Geochronology and geochemistry of Permo-Triassic sandstones in eastern Jilin Province (NE China): Implications for final closure of the Paleo-Asian Ocean

2019 ◽  
Vol 10 (2) ◽  
pp. 683-704 ◽  
Author(s):  
Qingxiang Du ◽  
Zuozhen Han ◽  
Xiaoli Shen ◽  
Chao Han ◽  
Zhigang Song ◽  
...  
Keyword(s):  
Jilin Province ◽  
Ne China ◽  
Final Closure

The timing of final closure along the Changchun–Yanji suture zone: Constraints from detrital zircon U–Pb dating of the Triassic Dajianggang Formation, NE China

Lithos ◽  
2016 ◽  
Vol 261 ◽  
pp. 216-231 ◽  
Author(s):  
Bin Wang ◽  
Jian-Bo Zhou ◽  
Simon A. Wilde ◽  
Xing-Zhou Zhang ◽  
Shou-Mai Ren
Keyword(s):  
Detrital Zircon ◽  
Suture Zone ◽  
Ne China ◽  
Final Closure

Geochronology and geochemistry of early Mesozoic magmatism in the northeastern North China Craton: Implications for tectonic evolution

2019 ◽  
Vol 67 ◽  
pp. 33-45 ◽  
Author(s):  
Xiao-Ming Zhang ◽  
Wen-Liang Xu ◽  
Chen-Yang Sun ◽  
Feng Wang ◽  
De-Bin Yang
Keyword(s):  
North China Craton ◽  
Tectonic Evolution ◽  
North China ◽  
Early Mesozoic ◽  
Mesozoic Magmatism

Re-Os and U-Pb Geochronology of Porphyry and Skarn Types Copper Deposits in Jilin Province, NE China

2015 ◽  
Vol 65 (4) ◽  
pp. 394-404 ◽  
Author(s):  
Yong Zhang ◽  
Shu-Wen Xing ◽  
Quan-Heng Song ◽  
Yan Wang ◽  
Zheng-Tao Yu ◽  
...  
Keyword(s):  
Jilin Province ◽  
Ne China ◽  
Copper Deposits
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