Viscosity Jump in Earth’s Mid-Mantle
Published In
Science
Document Type
Citation
Publication Date
12-2015
Abstract
The viscosity of Earth's deep interior plays a key role in mediating plate tectonics. Rudolph et al. combined several geophysical data sets to model the viscosity of the mantle. Mantle viscosity abruptly increases below 1000 km. The increase could explain the stalling of subducting slabs and the deflections of hot upwelling plumes around this depth. Although the viscosity increase explains some recent unexpected observations, the origin of the jump itself remains a mystery.
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DOI
10.1126/science.aad1929
Persistent Identifier
http://archives.pdx.edu/ds/psu/19655
Citation Details
Rudolph, M. L., Lekić, V., & Lithgow-Bertelloni, C. (2015). Viscosity jump in Earth’s mid-mantle. Science, 350(6266), 1349-1352.
Description
© 2015 American Association for the Advancement of Science. All rights reserved.