On the scales of dynamic topography in whole‐mantle convection models
Mantle convection shapes Earth's surface by generating dynamic topography. Observational
constraints and regional convection models suggest that surface topography could be
sensitive to mantle flow for wavelengths as short as 1,000 and 250 km, respectively. At these
spatial scales, surface processes including sedimentation and relative sea‐level change
occur on million‐year timescales. However, time‐dependent global mantle flow models do
not predict small‐scale dynamic topography yet. Here we present 2‐D spherical annulus …
constraints and regional convection models suggest that surface topography could be
sensitive to mantle flow for wavelengths as short as 1,000 and 250 km, respectively. At these
spatial scales, surface processes including sedimentation and relative sea‐level change
occur on million‐year timescales. However, time‐dependent global mantle flow models do
not predict small‐scale dynamic topography yet. Here we present 2‐D spherical annulus …
On the scales of dynamic topography in whole-mantle convection models-preprint version
M Arnould, N Coltice, N Flament, V Seigneur… - 2017 - eartharxiv.org
Mantle convection shapes Earths surface by generating dynamic topography. Observational
constraints and regional convection models suggest that surface topography could be
sensitive to mantle flow for wavelengths as short as 1,000 km and 250 km, respectively. At
these spatial scales, surface processes including sedimentation and relative sea-level
change occur on million year timescales. However, time dependent global mantle flow
models do not predict small-scale dynamic topography yet. Here, we present 2D-spherical …
constraints and regional convection models suggest that surface topography could be
sensitive to mantle flow for wavelengths as short as 1,000 km and 250 km, respectively. At
these spatial scales, surface processes including sedimentation and relative sea-level
change occur on million year timescales. However, time dependent global mantle flow
models do not predict small-scale dynamic topography yet. Here, we present 2D-spherical …
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