scholarly journals Ultrahigh-pressure metamorphic rocks in the Dabie–Sulu orogenic belt: compositional inheritance and metamorphic modification

2018 ◽  
Vol 474 (1) ◽  
pp. 89-132 ◽  
Author(s):  
Yong-Fei Zheng ◽  
Zi-Fu Zhao ◽  
Ren-Xu Chen
Keyword(s):  
Orogenic Belt ◽  
Ultrahigh Pressure ◽  
Metamorphic Rocks ◽  
Sulu Orogenic Belt

Low-Grade Metamorphic Rocks in the Dabie-Sulu Orogenic Belt: A Passive-Margin Accretionary Wedge Deformed during Continent Subduction

2005 ◽  
Vol 47 (8) ◽  
pp. 851-871 ◽  
Author(s):  
Yong-Fei Zheng ◽  
Jian-Bo Zhou ◽  
Yuan-Bao Wu ◽  
Zhi Xie
Keyword(s):  
Orogenic Belt ◽  
Passive Margin ◽  
Metamorphic Rocks ◽  
Low Grade ◽  
Accretionary Wedge ◽  
Sulu Orogenic Belt

Seismic evidence for multiple-stage exhumation of high/ultrahigh pressure metamorphic rocks in the eastern Dabie orogenic belt

2018 ◽  
Vol 214 (2) ◽  
pp. 1379-1390 ◽  
Author(s):  
Yinhe Luo ◽  
Kaifeng Zhao ◽  
Chi-Chia Tang ◽  
Yixian Xu
Keyword(s):  
Orogenic Belt ◽  
Ultrahigh Pressure ◽  
Metamorphic Rocks ◽  
Dabie Orogenic Belt

Zircon U–Pb geochronology and Hf isotope analyses of the Wulian complex in the Sulu orogenic belt, eastern China: tectonic affinity and implications for early Precambrian crustal growth and recycling in the South China Craton

2020 ◽  
pp. 1-16
Author(s):  
Jian-Hui Liu ◽  
Fu-Lai Liu ◽  
Zheng-Jiang Ding ◽  
Hong Yang ◽  
Ping-Hua Liu ◽  
...  
Keyword(s):  
Continental Crust ◽  
South China ◽  
Orogenic Belt ◽  
Detrital Zircons ◽  
Crustal Growth ◽  
Gneissic Granite ◽  
Early Precambrian ◽  
The North ◽  
South China Craton ◽  
Sulu Orogenic Belt

Abstract The Wulian complex is located on the northern margin of the Sulu orogenic belt, and was formed by collision between the North China Craton (NCC) to the north and South China Craton (SCC) to the south. It consists of the metasedimentary Wulian Group, gneissic granite and meta-diorite. The U–Pb analyses for the detrital zircons from the Wulian Group exhibit one predominant age population of 2600–2400 Ma with a peak at c. 2.5 Ga and several secondary age populations of > 3000, 3000–2800, 2800–2600, 2200–2000, 1900–1800, 1500–1300 and 1250–950 Ma; some metamorphic zircons have metamorphic ages of c. 2.7, 2.55–2.45, 2.1–2.0 and 1.95–1.80 Ga, which are consistent with magmatic-metamorphic events in the SCC. Additionally, the Wulian Group was intruded by the gneissic granite and meta-diorite at c. 0.76 Ga, attributed to Neoproterozoic syn-rifting bimodal magmatic activity in the SCC and derived from partial melting of Archaean continental crust and depleted mantle, respectively. The Wulian Group therefore has tectonic affinity to the SCC and was mainly sourced from the SCC. The detrital zircons have positive and negative ϵHf(t) values, indicating that their source rocks were derived from reworking of both ancient and juvenile crustal rocks. The major early Precambrian crustal growth took place during c. 3.4–2.5 Ga with a dominant peak at 2.96 Ga and several secondary peaks at 3.27, 2.74 and 2.52 Ga. The two oldest zircons with ages of 3307 and 3347 Ma record the recycling of ancient continental crust (> 3.35 Ga) and crustal growth prior to c. 3.95 Ga in the SCC.

Sign in / Sign up

Export Citation Format

Share Document