Water in Earth's mantle may be associated with subduction

A team of scientists from Oregon State University has created the first global three-dimensional map of electrical conductivity in the Earth's mantle and their model suggests that that enhanced conductivity in certain areas ...

The greenhouse gas that saved the world

When Planet Earth was just cooling down from its fiery creation, the sun was faint and young. So faint that it should not have been able to keep the oceans of earth from freezing. But fortunately for the creation of life, ...

Carbon dioxide forms polymeric materials under high pressure

Carbon dioxide is a molecular gas at ambient conditions and an important consitituent of the Earth’s atmosphere. It is also a likely component in the Earth’s mantle, and it plays an important role in the life cycle. But ...

Riding -- and reading -- the Earth tide

(PhysOrg.com) -- Once a day, Miaki Ishii rides the Earth tide, rising slowly — along with her desk, chair, and entire office — 20 to 30 centimeters before sinking back again.

The continents as a heat blanket

Drifting of the large tectonic plates and the superimposed continents is not only powered by the heat-driven convection processes in the Earth's mantle, but rather retroacts on this internal driving processes. In doing so, ...

page 24 from 24