A recent studypublished in Naturepresents compelling evidence of ancient planetary material buried deep within Earth’s mantle ...

Early interpretations of the seismic structure of the Earth ... all depths in the mantle and to integrate it with the Earth's chemical composition. We have presented here a simple geochemical ...

Earth's layers can be assigned according to chemical composition (what they're made ... Though geologists are yet to agree on a definitive structure of the lower mantle. According to the ...

Understanding the composition at the core-mantle boundary ... “Our research provides important connections between shallow and deep Earth structure and the overall processes driving our planet.” ...

Save guides, add subjects and pick up where you left off with your BBC account. The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in ...

The composition and temperature of the Earth's interior are fundamental for ... and temperature and understanding the velocity structure of the lower mantle. Zhongqing Wu and Wenzhong Wang ...

Nobody has ever journeyed to the centre of the Earth, but by studying shockwaves from earthquakes, physicists have been able to work out its likely structure. At the heart of the Earth is a solid ...

Geochemists suggest that Earth's upper mantle varies in composition over kilometer-sized ... will add a new perspective to the fine-scale structure of the mantle produced by mantle convection.