In between Earth's rigid tectonic plates above and its convecting mantle below is a hot and soft layer known as the asthenosphere. At mid-ocean ridges, upwelling of the hot asthenosphere to the surface of the seafloor forms ...
Earth Sciences
Jun 1, 2022
3
728
In Oman, on the Persian Gulf, there is a large slab of ancient seafloor—including ultramafic rocks from Earth's upper mantle—called the Samail Ophiolite. These unique rocks not only provide valuable information about ...
Earth Sciences
Apr 27, 2022
0
385
Even the smallest organism can have a major influence on the evolution of life on Earth. Microscopic algae that inhabit the sunlit waters of the ocean surface are not only responsible for about half of the photosynthesis ...
Plants & Animals
Apr 26, 2022
0
80
Subduction zone fluids are the key carrier for element migration and matter cycles between the crust and mantle of the Earth. Interpreting the sources, properties and signatures of fluids has significant implications for ...
Earth Sciences
Feb 25, 2022
0
19
At the far edges of continents, where the continental shelf transitions into the deep ocean, continental and oceanic plates come face to face. At many of these margins, the denser oceanic plate is pushed below the continental ...
Earth Sciences
Jan 24, 2022
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519
The hotspots that created volcanic islands such as those of Hawaii, Iceland and the Galapagos Islands may often prove surprisingly cool, a new study finds.
Earth Sciences
Jan 7, 2022
0
276
The second 4.5 magnitude earthquake in two days rattled the Spanish island of La Palma on Friday, officials said, as scientists described a gushing river of molten rock from an erupting volcano as "a true lava tsunami."
Environment
Oct 15, 2021
0
24
A 4.5-magnitude earthquake shook La Palma in Spain's Canary Islands in what was the strongest recorded temblor since volcanic eruptions began 26 days ago, authorities said Thursday.
Environment
Oct 14, 2021
0
10
The Earth's deepest diamonds are commonly made up of former living organisms that have effectively been recycled more than 400 kilometers below the surface, new Curtin research has discovered.
Earth Sciences
Aug 24, 2021
0
104
Earthquakes shake and rattle the world every day. The U.S. Geological Survey (USGS) has estimated the number of earthquakes at some half a million a year, with some 100,000 that can be felt, and about 100 that cause damage. ...
Earth Sciences
Aug 6, 2021
0
254
