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 ...

The oldest known bit of oceanic crust is sitting at the bottom of the Mediterranean The oldest patch of undisturbed oceanic crust on Earth may lie deep beneath the eastern Mediterranean Sea ...

For the first time, scientists have discovered microbes living deep inside Earth’s oceanic crust — the dark volcanic rock at the bottom of the sea. This crust is several kilometres thick and covers 60 ...

Thin oceanic crust is formed by decompression melting of the upper mantle at mid-ocean ridges, but the origin of the thick and buoyant continental crust is enigmatic. Juvenile continental crust ...

Remnants of 2.5-billion-year-old ocean crust that traveled to the core-mantle boundary and back have been found in a young South Pacific volcano.

COOLING DOWN Newly formed oceanic crust (redder shaded regions) is thinner on average than older crust, new research shows.This thinning suggests that Earth’s mantle is cooling faster than ...

Diamond isotope compositions indicate altered igneous oceanic crust dominates deep carbon recycling. Earth and Planetary Science Letters , 2019; 516: 190 DOI: 10.1016/j.epsl.2019.03.041 Cite This ...

Eclogitic diamonds formed in Earth's mantle originate from oceanic crust, rather than marine sediments as commonly thought, according to a new study from University of Alberta geologists.

The segregated oceanic crust may stay at the bottom of the mantle transition zone for the negative buoyancy and this can well explain the observed seismic scattering and week P660P phase.

Layers based on chemical composition are the core, mantle and crust. According to mechanical properties, Earth's layers are the lithosphere, asthenosphere, lower mantle (also known as mesospheric ...