Permo-Triassic collision, subduction-zone metamorphism, and tectonic exhumation along the East Asian continental margin

W. G. Ernst, Tatsuki Tsujimori, Ruth Zhang, J. G. Liou

Research output: Chapter in Book/Report/Conference proceedingChapter

174 Citations (Scopus)

Abstract

Convergent plate motion at ∼320-210 Ma generated the Tongbai-Dabie-Sulu (east-central China)-Imjingang-Gyeonggi (central Korea)-Renge-Suo (Southwestern Japan)-Sikhote-Alin orogen along the paleo-Pacific edge of cratonal Asia. This amalgamated belt reflects collision between the Sino-Korean and Yangtze cratons on the SW portion, and accretion of outboard oceanic arcs ± sialic fragments against the NE margin. Subducted Proterozoic-Paleozoic continental and oceanic crustal complexes underwent high- and ultrahigh-pressure metamorphism at low to moderate temperatures. Tectonic slices of sialic crust episodically disengaged from the down-going plate and, driven by buoyancy, ascended rapidly to midcrustal levels from depths exceeding 90-200 km after continental collision in east-central China plus or minus Korea, and from ∼30-50 km after arrival of far-traveled oceanic terranes in SW Japan and the Russian Far East. On achieving neutral buoyancy and stalling out at 10-20 km depth, later doming, gravitational collapse, and erosion exposed parts of the high- and ultrahigh-pressure complexes. This curvilinear orogen has been segmented and offset by major and minor transverse faults. Also, regional backarc spreading opened marginal basins behind the Permo-Triassic convergent suture zone, further disturbing portions oceanward.

Original languageEnglish
Title of host publicationAnnual Review of Earth and Planetary Sciences
Pages73-110
Number of pages38
Volume35
DOIs
Publication statusPublished - 2007
Externally publishedYes

Publication series

NameAnnual Review of Earth and Planetary Sciences
Volume35
ISSN (Print)00846597

Fingerprint

Korea
continental shelves
buoyancy
exhumation
subduction zone
continental margin
tectonics
China
Japan
metamorphism
Triassic
collision
stalling
ultrahigh pressure metamorphism
collisions
marginal basin
gravitational collapse
cratons
continental collision
suture zone

Keywords

  • Continental collision
  • Crustal accretion
  • Crustal evolution
  • High-pressure metamorphism
  • Permo-Triassic East Asian margin
  • Ultrahigh-pressure metamorphism

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Astronomy and Astrophysics

Cite this

Ernst, W. G., Tsujimori, T., Zhang, R., & Liou, J. G. (2007). Permo-Triassic collision, subduction-zone metamorphism, and tectonic exhumation along the East Asian continental margin. In Annual Review of Earth and Planetary Sciences (Vol. 35, pp. 73-110). (Annual Review of Earth and Planetary Sciences; Vol. 35). https://doi.org/10.1146/annurev.earth.35.031306.140146

Permo-Triassic collision, subduction-zone metamorphism, and tectonic exhumation along the East Asian continental margin. / Ernst, W. G.; Tsujimori, Tatsuki; Zhang, Ruth; Liou, J. G.

Annual Review of Earth and Planetary Sciences. Vol. 35 2007. p. 73-110 (Annual Review of Earth and Planetary Sciences; Vol. 35).

Research output: Chapter in Book/Report/Conference proceedingChapter

Ernst, WG, Tsujimori, T, Zhang, R & Liou, JG 2007, Permo-Triassic collision, subduction-zone metamorphism, and tectonic exhumation along the East Asian continental margin. in Annual Review of Earth and Planetary Sciences. vol. 35, Annual Review of Earth and Planetary Sciences, vol. 35, pp. 73-110. https://doi.org/10.1146/annurev.earth.35.031306.140146
Ernst WG, Tsujimori T, Zhang R, Liou JG. Permo-Triassic collision, subduction-zone metamorphism, and tectonic exhumation along the East Asian continental margin. In Annual Review of Earth and Planetary Sciences. Vol. 35. 2007. p. 73-110. (Annual Review of Earth and Planetary Sciences). https://doi.org/10.1146/annurev.earth.35.031306.140146
Ernst, W. G. ; Tsujimori, Tatsuki ; Zhang, Ruth ; Liou, J. G. / Permo-Triassic collision, subduction-zone metamorphism, and tectonic exhumation along the East Asian continental margin. Annual Review of Earth and Planetary Sciences. Vol. 35 2007. pp. 73-110 (Annual Review of Earth and Planetary Sciences).
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