Sentences with phrase «new oceanic crust»
As new oceanic crust is made in the spreading centers (the story went), it cools, fractures, and slips along faults, creating downward - dropped blocks that could be responsible for the ridge - and - valley topography.
http://www.sciencemag.org/ Not exact matches
New research from a team including Carnegie's Erik Hauri demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago.
«When crust from an oceanic tectonic plate plunges beneath a continental tectonic plate, as it does beneath the Andean Plateau, it brings water with it and partially melts the mantle, the layer below Earth's crust,» said Rice University's Jonathan Delph, co-author of the new study published online this week in Scientific Reports.
There it will seek out new species and habitats; it may also study subduction zones, where oceanic crust is recycled back into the earth's mantle.
A remote expedition to the deepest layer of the Earth's oceanic crust has revealed a new ecosystem living over a kilometre beneath our feet.
Dygert said that the new results suggest that circulation of water beneath mid-ocean ridges is effectively limited to the crustal section, and that enormous sections of the mantle could be available beneath the oceanic crust to efficiently trap CO2.