Catastrophic initiation of subduction following forced convergence across fracture zones

Details Catastrophic initiation of subduction following forced convergence across fracture zones Catastrophic initiation of subduction following forced convergence across fracture zones

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003e%26psl.212...15h&link_type=abstract

Earth and Planetary Science Letters, Volume 212, Issue 1-2, p. 15-30.

Mathematics

Logic

43

Scientific paper

Although the formation of subduction zones plays a central role in plate evolution, the processes and geological settings that lead to the initiation of subduction are poorly understood. Using a visco-elastoplastic model, we show that a fracture zone could be converted into a self-sustaining subduction zone after approximately 100 km of convergence. Modeled initiation is accompanied by rapid extension of the over-riding plate and explains the inferred catastrophic boninitic volcanism associated with Eocene initiation of the Izu-Bonin-Mariana (IBM) subduction zone. Using global plate reconstructions, we suggest that IBM nucleation was associated with a change in plate motion between 55 and 45 Ma. We estimate that the forces resisting IBM subduction initiation were substantially smaller than available driving forces.

Affiliated with

Also associated with

No associations

Rating

Catastrophic initiation of subduction following forced convergence across fracture zones 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 Catastrophic initiation of subduction following forced convergence across fracture zones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catastrophic initiation of subduction following forced convergence across fracture zones will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1466948