Forces associated with mantle plumes

Details Forces associated with mantle plumes Forces associated with mantle plumes

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993e%26psl.119..331w&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 119, no. 3, p. 331-348

Physics

Geophysics

12

Earth (Planet), Earth Mantle, Geophysics, Ocean Models, Plates (Tectonics), Plumes, Tectonics, Fluid Flow, Fluid Mechanics, Heat Transmission, Viscosity

Scientific paper

This study addresses first-order aspects of the physics of continental lithosphere extension above mantle plumes, developing a testable model that predicts extension rates from flow parameters. Radial flow in the head of a plume causes a viscous force, and uplift over this head causes a buoyancy force, which both drive extension. The viscous force is roughly proportional to the plume's volume flux and, given my best estimates for flow parameters, predominated for the most vigorous plumes. Extension is opposed by a viscous force beyond the plume head, and its rate is thus affected by the dimensions of the plate on which this force acts. Extension rates are approximately 2 mm/yr above Yellowstone, less than approximately 1 mm/yr above Baikal, and approximately 0.7 mm/yr above the East African plume. Volume fluxes for all these plumes are approximately 50 cu m/s; the extension rates depend on plate dimensions.

Affiliated with

Also associated with

No associations

Rating

Forces associated with mantle plumes 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 Forces associated with mantle plumes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forces associated with mantle plumes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1562219