Quantifying the net slab pull force as a driving mechanism for plate tectonics
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It has remained unclear how much of the negative buoyancy force of the slab (FB) is used to pull the trailing plate at the surface into the mantle. Here I present three-dimensional laboratory experiments to quantify the net slab pull force (FNSP) with respect to FB during subduction. Results show that FNSP increases with increasing slab length and dip up to ∼8-12% of FB, making FNSP up to twice as large as the ridge push force. The remainder of FB is primarily used to drive rollback-induced...[Show more]
dc.contributor.author | Schellart, Wouter | |
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dc.date.accessioned | 2015-12-13T22:41:12Z | |
dc.date.available | 2015-12-13T22:41:12Z | |
dc.identifier.issn | 0094-8276 | |
dc.identifier.uri | http://hdl.handle.net/1885/78408 | |
dc.description.abstract | It has remained unclear how much of the negative buoyancy force of the slab (FB) is used to pull the trailing plate at the surface into the mantle. Here I present three-dimensional laboratory experiments to quantify the net slab pull force (FNSP) with respect to FB during subduction. Results show that FNSP increases with increasing slab length and dip up to ∼8-12% of FB, making FNSP up to twice as large as the ridge push force. The remainder of FB is primarily used to drive rollback-induced mantle flow (∼70%), to bend the subducting plate at the trench (∼15-30%) and to overcome shear resistance between slab and mantle (0-8%). | |
dc.publisher | American Geophysical Union | |
dc.source | Geophysical Research Letters | |
dc.subject | Keywords: Buoyancy; Shear deformation; Tectonics; Mantle; Shear resistance; Trailing plates; Geophysics; experimental study; plate tectonics; slab; subduction | |
dc.title | Quantifying the net slab pull force as a driving mechanism for plate tectonics | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.description.refereed | Yes | |
local.identifier.citationvolume | 31 | |
dc.date.issued | 2004 | |
local.identifier.absfor | 040403 - Geophysical Fluid Dynamics | |
local.identifier.ariespublication | MigratedxPub7059 | |
local.type.status | Published Version | |
local.contributor.affiliation | Schellart, Wouter, College of Physical and Mathematical Sciences, ANU | |
local.bibliographicCitation.issue | L07611 | |
local.bibliographicCitation.startpage | doi:10.1029/2004GL019528 | |
local.identifier.doi | 10.1029/2004GL019528 | |
dc.date.updated | 2015-12-11T10:00:20Z | |
local.identifier.scopusID | 2-s2.0-3042781526 | |
Collections | ANU Research Publications |
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