Cited by 491High-pressure geophysics and materialsearthquake and tectonic studiesGeological and Geophysical Studies

How mantle slabs drive plate tectonics

Conrad, Clinton P., Lithgow-Bertelloni, Carolina·2002·Science

Abstract

The gravitational pull of subducted slabs is thought to drive the motions of Earth's tectonic plates, but the coupling between slabs and plates is not well established. If a slab is mechanically attached to a subducting plate, it can exert a direct pull on the plate. Alternatively, a detached slab may drive a plate by exciting flow in the mantle that exerts a shear traction on the base of the plate. From the geologic history of subduction, we estimated the relative importance of "pull" versus "suction" for the present-day plates. Observed plate motions are best predicted if slabs in the upper mantle are attached to plates and generate slab pull forces that account for about half of the total driving force on plates. Slabs in the lower mantle are supported by viscous mantle forces and drive plates through slab suction.

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Crossref · 10.1126/science.1074161

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  • The gravitational pull of subducting slabs is the dominant driving force for surface plate motion.

    “with the gravitational pull of subducting slabs now understood to be the dominant driving force for surface plate motion”

    From Secular change and the onset of plate tectonics on Earth (2020) · cites this paper as Conrad and Lithgow-Bertelloni, 2002

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Authors
Conrad, C. P., & Lithgow-Bertelloni, C.
Affiliations
  • University of Michigan (US)
  • Department of Geological Sciences, University of Michigan, Ann Arbor, MI 48109, USA.
Corresponding author
Conrad, Clinton P.
Venue
Science
Published
2002-10-04
Volume
298
Issue
5591
Pages
207-209
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2170479468
Cited by
491
References
22
Citations by year
2026: 20 · 2025: 22 · 2024: 20 · 2023: 48 · 2022: 27 · 2021: 37 · 2020: 25 · 2019: 15 · 2018: 23 · 2017: 25 · 2016: 18 · 2015: 20 · 2014: 20 · 2013: 13 · 2012: 23
FWCI
8.06
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › High-pressure geophysics and materials
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › earthquake and tectonic studies
  • Physical Sciences › Earth and Planetary Sciences › Geology › Geological and Geophysical Studies
Keywords
plate tectonics, slab pull, subduction, plate motion, mantle flow, lower mantle viscosity

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