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 language | English |
|---|---|
| Title of host publication | Annual Review of Earth and Planetary Sciences |
| Pages | 73-110 |
| Number of pages | 38 |
| Volume | 35 |
| DOIs | |
| Publication status | Published - 2007 |
| Externally published | Yes |
Publication series
| Name | Annual Review of Earth and Planetary Sciences |
|---|---|
| Volume | 35 |
| ISSN (Print) | 00846597 |
Fingerprint
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
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 proceeding › Chapter
}
TY - CHAP
T1 - Permo-Triassic collision, subduction-zone metamorphism, and tectonic exhumation along the East Asian continental margin
AU - Ernst, W. G.
AU - Tsujimori, Tatsuki
AU - Zhang, Ruth
AU - Liou, J. G.
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
KW - Continental collision
KW - Crustal accretion
KW - Crustal evolution
KW - High-pressure metamorphism
KW - Permo-Triassic East Asian margin
KW - Ultrahigh-pressure metamorphism
UR - http://www.scopus.com/inward/record.url?scp=34250675610&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34250675610&partnerID=8YFLogxK
U2 - 10.1146/annurev.earth.35.031306.140146
DO - 10.1146/annurev.earth.35.031306.140146
M3 - Chapter
AN - SCOPUS:34250675610
SN - 0824320352
SN - 9780824320355
VL - 35
T3 - Annual Review of Earth and Planetary Sciences
SP - 73
EP - 110
BT - Annual Review of Earth and Planetary Sciences
ER -