It appears that the mantle plume
under the western U.
The latter may have originated as dispersed parts of ancient mantle plumes
similar to a modern plume responsible for the formation of the intraplate Bowie Seamount.
The ascent of said deep mantle plume
generated a true chemical factory that enriched the mantle with metals, which would later generate the conditions for the creation of gold deposits.
Our findings suggest that mantle plume
processes seem to exert a first-order control on the modern JFR architecture but plate tectonic processes have also played a secondary role.
ne Seroussi and Erik Ivins of NASA's Jet Propulsion Labora (JPL) in Pasadena, California, studied this mantle plume
idea through numerical modeling, since getting direct measurements from under the ice is difficult.
We think that mantle plumes
are 'tapping' a deep, hot region of the mantle that hasn't cooled very much since the Archean," Gazel said.
When Jason Morgan proposed his mantle plume
theory to explain the origin of volcanic hotspots during the early 1970s, it was quickly accepted by the geological establishment.
The density difference between a rising mantle plume
and the cooler material that surrounds it enables scientists to distinguish the two.
One school argues that oceanic islands develop above mantle plume
convection cells that deliver recycled components and FOZO (lower mantle?
The surfacing of a mantle plume
leads to physical and chemical changes of the local, regional, and global environment, which in turn affect the conditions and evolution of life on Earth.
1999, Tomographic evidence for a narrow whole mantle plume
below Iceland: Earth and Planetary Science Letters, v.
Fernandina is the youngest -- at around 700,000 years old -- and sits on a weakness in the Earth's crust known as a hot spot or a mantle plume