Eclogitic diamonds formed from oceanic crust, study shows
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.
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.
Earth Sciences
Apr 24, 2019
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It's stunning but true that we know more about the surface of the moon than about the Earth's ocean floor. Much of what we do know has come from scientific ocean drilling – the systematic collection of core samples from ...
Earth Sciences
Sep 26, 2018
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25
For the first time, scientists have found Earth's fourth most abundant mineral—calcium silicate perovskite—at Earth's surface.
Earth Sciences
Mar 7, 2018
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A previously unknown connection between geological atmospheric carbon dioxide cycles and the fluctuating capacity of the ocean crust to store carbon dioxide has been uncovered by two geoscientists from the University of Sydney.
Earth Sciences
Feb 14, 2018
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210
Planetary scientists from Brown University have proposed a new scenario for the formation of ancient clay minerals on Mars that, if shown to be true, could rewrite the early history of the red planet.
Space Exploration
Dec 6, 2017
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161
Hot vents in the deep sea and geysers on land document the penetration of water into the hot interior of the Earth. This happens primarily in regions where the crust breaks up and magma chambers are close to the surface, ...
Earth Sciences
Nov 22, 2017
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The Earth's Moon had a rough start in life. Formed from a chunk of the Earth that was lopped off during a planetary collision, it spent its early years covered by a roiling global ocean of molten magma before cooling and ...
Earth Sciences
Nov 21, 2017
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Minerals containing water are widespread on Ceres, suggesting the dwarf planet may have had a global ocean in the past. What became of that ocean? Could Ceres still have liquid today? Two new studies from NASA's Dawn mission ...
Space Exploration
Oct 26, 2017
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507
NASA scientists have found evidence that Mars' crust is not as dense as previously thought, a clue that could help researchers better understand the Red Planet's interior structure and evolution.
Space Exploration
Sep 13, 2017
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460
Seismologists investigating how Earth forms new continental crust have compiled more than 20 years of seismic data from a wide swath of South America's Andean Plateau and determined that processes there have produced far ...
Earth Sciences
Aug 23, 2017
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172