Melt evolution above a spontaneously retreating subducting slab in a three-dimensional model

Guizhi Zhu, Taras Gerya, David A. Yuen

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Dehydration of the subducting slab favors the melting of the surrounding mantle. Water content and melt evolution atop a spontaneously retreating subducting slab are reported in a three-dimensional (3-D) model. We find that fluids, including water and melts in the rocks, vary substantially along the trench, which cannot be found in two-dimensional (2-D) models. Their maxima along the subducting slab are mainly located at about 50 to 70 and 120 to 140 km. Volumetric melt production rate changes spatially and episodically atop the slab, which may reflect the intensity and variations of volcanoes.

Original languageEnglish (US)
Pages (from-to)137-142
Number of pages6
JournalJournal of Earth Science
Volume22
Issue number2
DOIs
StatePublished - Apr 2011

Bibliographical note

Funding Information:
This study was supported by the SNF (Nos. 200021-116381/1, 200020-126832/1). *Corresponding author: guizhi.zhu@erdw.ethz.ch © China University of Geosciences and Springer-Verlag Berlin Heidelberg 2011

Funding Information:
This study was supported by the SNF (Nos. 200021-116381/1, 200020-126832/1). We also thank the “Multiple-Scale Geodynamics of Continental Interiors” workshop.

Keywords

  • subduction
  • three-dimensional model
  • water and melt

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