Other
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009e%26psl.278...50d&link_type=abstract
Earth and Planetary Science Letters, Volume 278, Issue 1-2, p. 50-54.
Other
12
Scientific paper
Hot-spots are anomalous regions of magmatism that cannot be directly associated with plate tectonic processes. They are widely-regarded as the surface expression of upwelling mantle plumes. Hot-spots exhibit variable life-spans, magmatic productivity and fixity. This suggests that a wide-range of upwelling structures coexist within Earth's mantle, a view supported by geochemical and seismic evidence, but, thus far, not fully-reproduced by numerical models. Here, results from a new, global, 3-D spherical, mantle convection model are presented, which better reconcile hot-spot observations, the key modification from previous models being increased convective vigor. Model upwellings show broad-ranging dynamics; some drift slowly, while others are more mobile, displaying variable life-spans, intensities and migration velocities. Such behavior is consistent with hot-spot observations, indicating that the mantle must be simulated at the correct vigor and in the appropriate geometry to reproduce Earth-like dynamics. Thermally-driven mantle plumes can explain the principal features of hot-spot volcanism on Earth.
Davies John H.
Davies Rhodri D.
No associations
LandOfFree
Thermally-driven mantle plumes reconcile multiple hot-spot observations 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 Thermally-driven mantle plumes reconcile multiple hot-spot observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermally-driven mantle plumes reconcile multiple hot-spot observations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-915529