Palaeoproterozoic episodic magmatism and high-grade metamorphism in the North China Craton: evidence from SHRIMP zircon dating of magmatic suites in the Daqingshan area

2012 ◽  
Vol 48 (5) ◽  
pp. 429-455 ◽  
Author(s):  
Shoujie Liu ◽  
Chunyan Dong ◽  
Zhongyuan Xu ◽  
M. Santosh ◽  
Mingzhu Ma ◽  
...  
Keyword(s):  
North China Craton ◽  
North China ◽  
High Grade ◽  
Zircon Dating ◽  
Grade Metamorphism ◽  
The North ◽  
High Grade Metamorphism ◽  
Shrimp Zircon ◽  
Shrimp Zircon Dating

scholarly journals Retrograded Eclogite From Chicheng, North China Craton: New Insights Into the Fidelity of U-Pb-Hf-O Isotopes in Zircon During High-grade Metamorphism

2021 ◽  
Author(s):  
Dongya Zou ◽  
Hongfu Zhang ◽  
M. Santosh
Keyword(s):  
North China Craton ◽  
North China ◽  
Experimental Studies ◽  
Amphibolite Facies ◽  
High Grade ◽  
Grade Metamorphism ◽  
O Isotopes ◽  
Facies Metamorphism ◽  
High Grade Metamorphism ◽  
Eclogite Facies

Abstract Zircon is the most abundantly used mineral for dating igneous and metamorphic events and for tracing source characteristics. Understanding the geochemical behavior of the U-Pb-Hf-O isotope systems during high-grade metamorphism is therefore important for accurate interpretation of the isotopic information. We report zircon U-Pb-Hf-O isotopes and trace elements of retrograded eclogites and host gneisses from Chicheng, North China Craton, with the aim to obtain new insights into the fidelity of U-Pb-Hf-O isotopes in zircon as recorders of high-grade metamorphism. U-Pb dating suggested that the Chicheng mélange experienced eclogite facies metamorphism at ~1.84 Ga, and then exhumed to amphibolite facies at 320–300 Ma. Zircons with Paleoproterozoic ages formed in metamorphic melts-derived from the gneiss during the eclogite facies metamorphism. Zircons with ages of 300–320 Ma formed by recrystallization of peak metamorphic zircons during fluid-assisted amphibolite-facies retrograde metamorphism. This process led to the near-complete resetting not only of U-Pb ages but also of Hf-O isotopic compositions of the peak metamorphic zircons, while preserve REE patterns. These results contrast with the sluggish Hf diffusion rate predicted from experimental studies, and support findings that isotopic data from metamorphic zircons in retrograded high-grade metamorphic rocks need not be faithful recorders of their sources.

Middle Neoarchean magmatism in western Shandong, North China Craton: SHRIMP zircon dating and LA-ICP-MS Hf isotope analysis

2014 ◽  
Vol 255 ◽  
pp. 865-884 ◽  
Author(s):  
Yusheng Wan ◽  
Chunyan Dong ◽  
Shijin Wang ◽  
Alfred Kröner ◽  
Hangqiang Xie ◽  
...  
Keyword(s):  
North China Craton ◽  
North China ◽  
Isotope Analysis ◽  
Hf Isotope ◽  
Zircon Dating ◽  
Icp Ms ◽  
Shrimp Zircon ◽  
Shrimp Zircon Dating ◽  
Western Shandong

SHRIMP zircon U-Pb dating of late Paleoproterozoic kondalites in the Daqing Mountains area on the North China Craton

2012 ◽  
Vol 56 (1) ◽  
pp. 115-125 ◽  
Author(s):  
ChunYan Dong ◽  
YuSheng Wan ◽  
ZhongYuan Xu ◽  
DunYi Liu ◽  
ZhenSheng Yang ◽  
...  
Keyword(s):  
North China Craton ◽  
North China ◽  
The North ◽  
Shrimp Zircon

U-Pb ages of plutonism, sedimentation, and metamorphism of the Paleoproterozoic Kisseynew metasedimentary belt, Trans-Hudson Orogen (Manitoba, Canada)

1999 ◽  
Vol 36 (11) ◽  
pp. 1829-1842 ◽  
Author(s):  
N Machado ◽  
H Zwanzig ◽  
M Parent
Keyword(s):  
Ocean Floor ◽  
Arc Magmatism ◽  
High Grade ◽  
Plate Convergence ◽  
Grade Metamorphism ◽  
The North ◽  
Continental Arc ◽  
High Grade Metamorphism ◽  
Flin Flon ◽  
Uplift And Erosion

The Kisseynew Domain is a metasedimentary belt in the central Reindeer Zone of the Trans-Hudson Orogen. It is bounded by 1.92-1.86 Ga volcanic-plutonic belts to the north and south, by an Archean terrane to the east (Superior Province), and by a volcanic-plutonic terrane underlain by an Archean terrane to the southwest (Glennie Domain). The Kisseynew Domain developed in an arc-related setting in the final stages of plate convergence involving the northward migration of arc-ocean floor complexes toward the Archean Hearne Craton. Terminal collision, involving also the Superior Craton, originated multiple fold-thrust systems and high-grade metamorphism. U-Pb ages of 1874-1860 Ma for pretectonic plutonic units in southern Kisseynew Domain are identical to ages of plutonism intruding the arc-ocean floor accretionary complex in the Flin Flon domain (Amisk collage) and indicate its northern extension. Deposition of the Burntwood Group turbidites started at ca. 1860 Ma, indicating uplift and erosion of the volcanic complexes and was coeval with arc magmatism that succeeded the Amisk collage. From 1848 Ma, Burntwood sedimentation was coeval with deposition of Missi Group continental sediments, with continental arc magmatism and early deformation. New and published ages for detrital zircon indicate that sediments were derived both from local 1.89-1.84 Ga units and also from 2.55-2.36 Ga sources. The latter suggest that a Neoarchean-Paleoproterozoic cratonic block was undergoing erosion, remnants of which occur in the Flin Flon Belt. Basin closure started after 1823 Ma and is marked by regional high-grade metamorphism lasting for ca. 30 million years from 1818 Ma to 1785 Ma; late- to posttectonic metamorphic activity lasted until ca. 1775 Ma.

Sign in / Sign up

Export Citation Format

Share Document