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
2
45
Evidence of historic marine life present in Alaskan permafrost is helping scientists reconstruct ancient changes in the ice cover over the Arctic Ocean.
Earth Sciences
Apr 12, 2019
0
10
The discovery provides a new characteristic 'biosignature' to track the remains of ancient life preserved in rocks which are significantly altered over billions of years and could help identify life elsewhere in the Solar ...
Earth Sciences
Apr 8, 2019
0
146
Roughly 430 million years ago, during the Earth's Silurian Period, global oceans were experiencing changes that would seem eerily familiar today. Melting polar ice sheets meant sea levels were steadily rising, and ocean oxygen ...
Earth Sciences
Mar 28, 2019
1
2230
Experiments conducted at extreme conditions are giving scientists new insights into the chemical make-up of the Earth's core.
Earth Sciences
Mar 12, 2019
0
18
Understanding the global carbon cycle provides scientists with vital clues about the planet's habitability.
Earth Sciences
Feb 22, 2019
0
88
A U.S.-German research team has simulated meteorite impacts in the lab and followed the resulting structural changes in two feldspar minerals with X-rays as they happened. The results of the experiments at DESY and at Argonne ...
Earth Sciences
Feb 4, 2019
0
100
A big earthquake occurred south of Istanbul in the summer of 2016, but it was so slow that nobody noticed. The earthquake, which took place at mid-crustal depth, lasted more than 50 days. A novel processing technique applied ...
Earth Sciences
Jan 30, 2019
0
13
In findings published overnight in science journal Earth and Planetary Science Letters, a sample collected during the 1971 Apollo 14 lunar mission was found to contain traces of minerals with a chemical composition common ...
Space Exploration
Jan 25, 2019
14
2055
Years before the devastating Tohoku earthquake struck the coast of Japan in 2011, the Earth's crust near the site of the quake was starting to stir. Researchers at The University of Texas at Austin are using computer models ...
Earth Sciences
Jan 10, 2019
0
95
