scholarly journals Deep subduction and rapid exhumation: Role of crustal strength and strain weakening in continental subduction and ultrahigh-pressure rock exhumation

Tectonics ◽  
2008 ◽  
Vol 27 (6) ◽  
pp. n/a-n/a ◽  
Author(s):  
Clare J. Warren ◽  
Christopher Beaumont ◽  
Rebecca A. Jamieson
Keyword(s):  
Ultrahigh Pressure ◽  
Continental Subduction ◽  
Crustal Strength

scholarly journals The Role of Crustal Strength in Controlling Magmatism and Melt Chemistry During Rifting and Breakup

2018 ◽  
Vol 19 (2) ◽  
pp. 534-550 ◽  
Author(s):  
John J. Armitage ◽  
Kenni D. Petersen ◽  
Marta Pérez-Gussinyé
Keyword(s):  
Crustal Strength

Growth of metamorphic and peritectic garnets in ultrahigh-pressure metagranite during continental subduction and exhumation in the Dabie orogen

Lithos ◽  
2016 ◽  
Vol 266-267 ◽  
pp. 158-181 ◽  
Author(s):  
Qiong-Xia Xia ◽  
Hao-Zheng Wang ◽  
Li-Gang Zhou ◽  
Xiao-Ying Gao ◽  
Yong-Fei Zheng ◽  
...  
Keyword(s):  
Ultrahigh Pressure ◽  
Dabie Orogen ◽  
Continental Subduction

How Himalayan collision stems from subduction

Geology ◽  
2021 ◽  
Author(s):  
M. Soret ◽  
K.P. Larson ◽  
J. Cottle ◽  
A. Ali
Keyword(s):  
Foreland Basin ◽  
Continental Collision ◽  
Ultrahigh Pressure ◽  
Metamorphic Rocks ◽  
Conductive Heat ◽  
Plate Interface ◽  
Continental Subduction ◽  
Metamorphic History ◽  
Orogenic Wedge ◽  
History Of

The mechanisms and processes active during the transition from continental subduction to continental collision at the plate interface are largely unknown. Rock records of this transition are scarce, either not exposed or obliterated during subsequent events. We examine the tectono-metamorphic history of Barrovian metamorphic rocks from the western Himalayan orogenic wedge. We demonstrate that these rocks were buried to amphibolite-facies conditions from ≤47 Ma to 39 ± 1 Ma, synchronously with the formation (46 Ma) and partial exhumation (45–40 Ma) of the ultrahigh-pressure eclogites. This association indicates that convergence during continental subduction was accommodated via development of a deep orogenic wedge built through successive underplating of continental material, including the partially exhumed eclogites, likely in response to an increase in interplate coupling. This process resulted in the heating of the subduction interface (from ~7 to ~20 °C/km) through advective and/or conductive heat transfer. Rapid cooling of the wedge from 38 Ma, coeval with the formation of a foreland basin, are interpreted to result from indentation of a promontory of thick Indian crust.

scholarly journals Exhuming Norwegian ultrahigh-pressure rocks: Overprinting extensional structures and the role of the Nordfjord-Sogn Detachment Zone

Tectonics ◽  
2007 ◽  
Vol 26 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Scott M. Johnston ◽  
Bradley R. Hacker ◽  
Torgeir B. Andersen
Keyword(s):  
Ultrahigh Pressure ◽  
Detachment Zone ◽  
Extensional Structures
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