Geologists have attributed age-dependent variations in the chemistry of Ethiopian volcanic rocks to rhythmic pulses like a ...

Figure 4: Pressure–temperature diagram showing generalised carbonate phase relations in subducted, carbonated oceanic crust. The melting curves of carbonated basalt at upper mantle and transition zone ...

Oceanic crust formation is dynamic after all Date: November 29, 2009 Source: Brown University Summary: Earth scientists have found strong evidence that the geological processes that lead to the ...

The Earth's oceanic crust covers an enormous expanse, and is mostly buried beneath a thick layer of mud that cuts it off from the surface world. Scientists now document life deep within the ...

BEERSHEBA, Israel, Aug. 15 (UPI) --The oldest oceanic crust on Earth lies at the bottom of the eastern Mediterranean in the Herodotus Basin, a seafloor depression north of Egypt and Libya.

"We know that Earth's oceanic crust accounts for 60 percent of Earth's surface, and on average is four miles thick," said geomicrobiologist Mark Lever of Denmark's Aarhuis University, part of a ...

A study reveals that the oldest continental crust on Earth is slowly being broken up by shifting tectonic forces.

The strength of Earth’s magnetic field and the amount of oxygen in its atmosphere seem to be correlated—and scientists want ...

Oceanic crust and continental crust differ in their composition, density and age, according to World Atlas. Oceanic crust is primarily composed of dark basalt rocks rich in elements such as ...

The oceanic crust covers 60 per cent of the Earth's surface. Taking the volume into consideration, this makes it the largest ecosystem on Earth. Since the Seventies, ...