Episodic slab rollback fosters exhumation of HP-UHP rocks

Details Episodic slab rollback fosters exhumation of HP-UHP rocks Episodic slab rollback fosters exhumation of HP-UHP rocks

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009geoji.179.1292h&link_type=abstract

Geophysical Journal International, Volume 179, Issue 6, pp. 1292-1300.

Astronomy and Astrophysics

Astronomy

3

Subduction Zone Processes, Continental Margins: Convergent, Dynamics Of Lithosphere And Mantle, High Strain Deformation Zones

Scientific paper

The burial-exhumation cycle of crustal material in subduction zones can either be driven by the buoyancy of the material, by the surrounding flow, or by both. High pressure and ultrahigh pressure rocks are chiefly exhumed where subduction zones display transient behaviours, which lead to contrasted flow regimes in the subduction mantle wedge. Subduction zones with stationary trenches (mode I) favour the burial of rock units, whereas slab rollback (mode II) moderately induces an upward flow that contributes to the exhumation, a regime that is reinforced when slab dip decreases (mode III). Episodic regimes of subduction that involve different lithospheric units successively activate all three modes and thus greatly favour the exhumation of rock units from mantle depth to the surface without need for fast and sustained erosion.

Affiliated with

Also associated with

No associations

Rating

Episodic slab rollback fosters exhumation of HP-UHP rocks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Episodic slab rollback fosters exhumation of HP-UHP rocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Episodic slab rollback fosters exhumation of HP-UHP rocks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1887653