Mineralogy, petrology, U-Pb geochronology, and geologic evolution of the Dabie-Sulu classic ultrahigh-pressure metamorphic terrane, East-Central China

2012 ◽  
Vol 97 (10) ◽  
pp. 1533-1543 ◽  
Author(s):  
J. G. Liou ◽  
R. Zhang ◽  
F. Liu ◽  
Z. Zhang ◽  
W. G. Ernst
Keyword(s):  
Central China ◽  
Ultrahigh Pressure ◽  
East Central ◽  
Metamorphic Terrane

scholarly journals Exhumation of the ultrahigh-pressure continental crust in east central China: Cretaceous and Cenozoic unroofing and the Tan-Lu fault

2000 ◽  
Vol 105 (B6) ◽  
pp. 13303-13338 ◽  
Author(s):  
Lothar Ratschbacher ◽  
Bradley R. Hacker ◽  
Laura E. Webb ◽  
Michael McWilliams ◽  
Trevor Ireland ◽  
...  
Keyword(s):  
Continental Crust ◽  
Central China ◽  
Ultrahigh Pressure ◽  
East Central

scholarly journals Exhumation of ultrahigh-pressure continental crust in east central China: Late Triassic-Early Jurassic tectonic unroofing

2000 ◽  
Vol 105 (B6) ◽  
pp. 13339-13364 ◽  
Author(s):  
Bradley R. Hacker ◽  
Lothar Ratschbacher ◽  
Laura Webb ◽  
Michael O. McWilliams ◽  
Trevor Ireland ◽  
...  
Keyword(s):  
Continental Crust ◽  
Early Jurassic ◽  
Central China ◽  
Ultrahigh Pressure ◽  
Late Triassic ◽  
East Central

Ultrahigh-pressure eclogite transformed from mafic granulite in the Dabie orogen, east-central China

2007 ◽  
Vol 25 (9) ◽  
pp. 975-989 ◽  
Author(s):  
Y.-C. LIU ◽  
S.-G. LI ◽  
X.-F. GU ◽  
S.-T. XU ◽  
G.-B. CHEN
Keyword(s):  
Central China ◽  
Mafic Granulite ◽  
Ultrahigh Pressure ◽  
Dabie Orogen ◽  
East Central

Significance of allanite-(Ce) in granitic gneisses from the ultrahigh-pressure metamorphic terrane, Dabie Shan, central China

1999 ◽  
Vol 63 (4) ◽  
pp. 579-586 ◽  
Author(s):  
Xiaochun Liu ◽  
Shuwen Dong ◽  
Huaimin Xue ◽  
Jianxiong Zhou
Keyword(s):  
Large Scale ◽  
Mineral Chemistry ◽  
Central China ◽  
Ultrahigh Pressure ◽  
Chemical Compositions ◽  
Retrograde Metamorphism ◽  
Dabie Shan ◽  
Igneous Origin ◽  
Accessory Phase ◽  
Metamorphic Terrane

AbstractA recent study of granitic gneisses in the ultrahigh-pressure (UHP) metamorphic terrane from Dabie Shan, central China reveals that allanite-(Ce) is a widespread REE-bearing accessory phase. The microprobe analyses show that allanites-(Ce) have nearly uniform chemical compositions, with total REE contents ranging from 23 to 28 wt.% and a La/Ce ratio of 0.57–0.73. All allanites-(Ce) are replaced or rimmed by epidotes and commonly form a relatively REE-poor rim near the interfaces. The textural relations and mineral chemistry suggest that allanite-(Ce) crystallized prior to metamorphism and therefore was of igneous origin, whereas the surrounding epidote was the product of metamorphism. Granitic gneiss, composed chiefly of sodic plagioclase, microcline and quartz with minor amounts of Mn-rich garnet, biotite, low Si phengitic mica, epidote, chlorite and sometimes amphibole, was formed at 495°C and ∼5 kbar, corresponding to the retrograde metamorphism of UHP rocks. Accordingly, it is believed that granitic gneisses have not experienced UHP metamorphism. This implies that a large scale tectonic juxtaposition developed before the epidote-amphibolite facies retrograde metamorphism of UHP rocks during the late continental collision in Dabie Shan.

A refractory mantle protolith in younger continental crust, east-central China: Age and composition of zircon in the Sulu ultrahigh-pressure peridotite

Geology ◽  
2006 ◽  
Vol 34 (9) ◽  
pp. 705 ◽  
Author(s):  
Jianping Zheng ◽  
W.L. Griffin ◽  
Suzanne Y. O'Reilly ◽  
J.S. Yang ◽  
R.Y. Zhang
Keyword(s):  
Continental Crust ◽  
Central China ◽  
Ultrahigh Pressure ◽  
East Central
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