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

@article{Hacker2000ExhumationOU,
  title={Exhumation of ultrahigh‐pressure continental crust in east central China: Late Triassic‐Early Jurassic tectonic unroofing},
  author={Bradley R. Hacker and Lothar Ratschbacher and Laura E. Webb and Michael O. McWilliams and Trevor R. Ireland and Andrew J. Calvert and Shu-wen Dong and H. R. Wenk and Daniel Chateigner},
  journal={Journal of Geophysical Research},
  year={2000},
  volume={105},
  pages={13339-13364}
}
The largest tract of ultrahigh-pressure rocks, the Dabie-Hong'an area of China, was exhumed from 125 km depth by a combination of normal-sense shear from beneath the hanging wall Sino-Korean craton, southeastward thrusting onto the footwall Yangtze craton, and orogen-parallel eastward extrusion. Prior to exhumation the UHP slab extended into the mantle a downdip distance of 125–200 km at its eastern end, whereas it was subducted perhaps only 20–30 km at its far western end ∼200 km away… Expand
Exhumation of the ultrahigh‐pressure continental crust in east central China: Cretaceous and Cenozoic unroofing and the Tan‐Lu fault
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Crustal-penetrating seismic reflection data across the ultrahigh-pressure (UHP) Dabie Shan orogen show that the Yangtze craton was subducted beneath the Sino-Korean craton, forming a bivergentExpand
40Ar/39Ar thermochronology of the Sulu terrane: Late Triassic exhumation of high- and ultrahigh-pressure rocks and implications for Mesozoic tectonics in East Asia
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Prograde amphibolite facies to ultrahigh‐pressure transition along Nordfjord, western Norway: Implications for exhumation tectonics
[1] The Nordfjord area of western Norway hosts one of the best known provinces of ultrahigh-pressure (UHP) rocks in the world, yet the nature of the transition from the UHP rocks into surroundingExpand
Teleseismic P-wave tomography and the upper mantle structure of the Sulu orogenic belt (China): implications for Triassic collision and exhumation mechanism
As the largest ultrahigh-pressure (UHP) metamorphic tectonic unit outcropping in the world, the Dabie–Sulu UHP metamorphic belt is considered to be one of the best areas for studying the continentalExpand
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Exhumation of the ultrahigh‐pressure continental crust in east central China: Cretaceous and Cenozoic unroofing and the Tan‐Lu fault
The orogenic architecture of the world's largest ultrahigh-pressure exposure, the Hong'an-Dabie Mountains of the Triassic Qinling-Dabie orogenic belt, is dominated by Cretaceous and CenozoicExpand
How did the foreland react? Yangtze foreland fold‐and‐thrust belt deformation related to exhumation of the Dabie Shan ultrahigh‐pressure continental crust (eastern China)
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What brought them up? Exhumation of the Dabie Shan ultrahigh-pressure rocks
Metamorphic coesite and diamond in the Dabie Shan, eastern China, testify to subduction of continental crust to >100 km depth. Exhumation of these ultrahigh-pressure rocks through the crustExpand
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Geochronology and isotopic character of ultrahigh‐pressure metamorphism with implications for collision of the Sino‐Korean and Yangtze cratons, central China
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Ar/Ar geochronology of ultrahigh‐pressure metamorphism in central China
The Dabie Shan of China contain the largest areal exposure of ultrahigh-pressure regional metamorphic rock known on Earth. The thermal history of these unusual rocks is central to understanding theExpand
Exhumation of the Dabie Shan ultra-high-pressure rocks and accumulation of the Songpan-Ganzi flysch sequence, central China
The presence of coesite- and diamond-bearing ultra-high-pressure (UHP) metamorphic rocks in the Dabie and Sulu regions, central China, suggests that a >100-km-thick crustal section (4 x 106 km6 inExpand
Cretaceous tectonic evolution of coastal southern California: Insights from the Catalina Schist
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