Its goal was to drill until we could directly sample the mantle - that is, drill through the oceanic crust, through the Moho and into the uppermost mantle. However, as with many ambitious projects ...

Earth's first example of recycling: its own crust! Date: March 16, 2017 Source: Carnegie Institution for Science Summary: Rock samples from northeastern Canada retain chemical signals that help ...

Scientists have recently documented that oxygen is disappearing from seawater circulating through deep oceanic crust, a significant first step in understanding the way life in the "deep biosphere ...

At depths exceeding 2,500 meters, researchers aboard the research vessel Falkor have uncovered a bustling ecosystem teeming with life. The Schmidt Ocean Institute’s team utilized advanced ...

Life in a global conveyor. Oceanic crust has been made almost continuously for 3.8 billion years at mid-ocean ridges, a network of volcanoes that stretches 40,000 miles around the planet.Mostly ...

Subduction zones, where one tectonic plate dives underneath another, drive the world’s most devastating earthquakes and tsunamis. How do these danger zones come to be? A study in Geology presents ...

(Phys.org) —A new study shows for the first time that microorganisms are thriving deep within the oceanic crust under the sea floor, and hence far from light or oxygen.

Oceanic islands preferred thin crust. ... —Debate over how and where oceanic island chains, like Hawaii, form, is at an end according to an academic from The Australian National University.

Oceanic crust, made of basaltic rock and rich in magnetite, is created at divergent plate boundaries, where the mantle is constantly coughing up new magma. As the magma rises, cools and ... The ...

Cycling of oceanic crust through mantle reservoirs can therefore reconcile observations of different recycled ... but it doesn’t explain the recycled oceanic crustal components (for example, ...

Continental crust is also much less dense than its oceanic counterpart. In 1962, famed Princeton geologist Harry Hess theorized that the thickness of continental crust had to do with sea level and ...