3D Geodynamic Models for HP-UHP Rock Exhumation in Opposite-Dip Double Subduction-Collision Systems

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Xinxin Wang
  • Boris JP Kaus
  • Jianfeng Yang
  • Kun Wang
  • Yang Li
  • Ling Chen
  • Liang Zhao
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000691015100023&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1029/2021JB022326
eISSN
2169-9356
Externe Identifier
  • Clarivate Analytics Document Solution ID: UJ0WF
ISSN
2169-9313
Ausgabe der Veröffentlichung
8
Zeitschrift
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
Schlüsselwörter
  • HP-UHP rock exhumation
  • double subduction systems
  • ocean-continent collision
  • continental-margin deep subduction
  • Taiwan and Alps
  • Apennines orogens
Artikelnummer
ARTN e2021JB022326
Datum der Veröffentlichung
2021
Status
Published
Titel
3D Geodynamic Models for HP-UHP Rock Exhumation in Opposite-Dip Double Subduction-Collision Systems
Sub types
  • Article
Ausgabe der Zeitschrift
126

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:title>Abstract</jats:title><jats:p>The dynamics of high pressure (HP) and ultra‐high pressure (UHP) rock exhumation in opposite‐dip double subduction‐collision systems remain enigmatic. Here, we present 3D thermo‐mechanical numerical models to study the geodynamics of continental‐margin subduction, collision, and crustal exhumation of HP‐UHP metamorphic rocks in oppositely dipping adjacent subduction zones. In our model setups, an initial transform‐fault separates a purely oceanic subduction zone from an adjacent oceanic subduction zone that in time transforms into continental‐margin subduction. The results show that most simulations cause continental‐margin deep subduction within the collisional belts. In contrast to the results of 2D and 3D single subduction‐collision systems, the slab‐slab interactions strongly modify the down‐channel Couette flow and the up‐channel Poiseuille flow in the interplate region when the plate edges are close to each other. This prevents the exhumation of UHP metamorphic rocks to the Earth's surface. However, far from the interplate region, rapid exhumation of UHP rocks occurs in Alpine‐type models with a low Moho temperature, strong lower crust, and fast upper‐plate divergence, whereas the Taiwan‐type models occur for a high Moho temperature, weak lower crust, fast convergence, fast erosion, and are likely to facilitate rapid dome‐like HP exhumation. Based on our results, we suggest that the main characteristics, such as deep crustal subduction and rapid exhumation of HP‐UHP metamorphic rocks during mountain building in Taiwan (∼8 Ma to present) and in the Western Alps (∼49–35 Ma), may be the result of opposite‐dip double subduction‐collision systems.</jats:p>
Autoren
  • Xinxin Wang
  • Boris JP Kaus
  • Jianfeng Yang
  • Kun Wang
  • Yang Li
  • Ling Chen
  • Liang Zhao
DOI
10.1029/2021jb022326
eISSN
2169-9356
ISSN
2169-9313
Ausgabe der Veröffentlichung
8
Zeitschrift
Journal of Geophysical Research: Solid Earth
Sprache
en
Online publication date
2021
Datum der Veröffentlichung
2021
Status
Published
Herausgeber
American Geophysical Union (AGU)
Herausgeber URL
http://dx.doi.org/10.1029/2021jb022326
Datum der Datenerfassung
2023
Titel
3D Geodynamic Models for HP‐UHP Rock Exhumation in Opposite‐Dip Double Subduction‐Collision Systems
Ausgabe der Zeitschrift
126

Datenquelle: Crossref

Beziehungen:
Eigentum von

Werkzeuge