North Atlantic geoid high, volcanism and glaciations

Details North Atlantic geoid high, volcanism and glaciations North Atlantic geoid high, volcanism and glaciations

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3703302c&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 3, CiteID L03302

Physics

Tectonophysics: Dynamics Of Lithosphere And Mantle: General (1213), Tectonophysics: Dynamics: Gravity And Tectonics, Volcanology: Mid-Oceanic Ridge Processes (1032, 3614)

Scientific paper

Shallow topography, geoid high and intense volcanism in the northern Mid Atlantic Ridge are interpreted as enhanced by the loading on the adjacent continents by ice caps during upper Cenozoic glaciations. The load of ice packs on the continental lithospheres of North America and northern Europe generated radial mantle flow at depth. In our model, these currents, where flowing from west and east, faced each other below the northern Atlantic, joining together and upwelling. Numerical modeling of this process supports the development of dynamic topography leading to uplift of the sea-floor and inducing a regional geoid high. The upper mantle, being pumped from the deep mantle and rising to a few km shallower than average, may have contributed to larger asthenospheric melting, and to ridge centered excess magmatism, as observed in the Northern Atlantic.

Affiliated with

Also associated with

No associations

Rating

North Atlantic geoid high, volcanism and glaciations 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 North Atlantic geoid high, volcanism and glaciations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and North Atlantic geoid high, volcanism and glaciations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1091518