Earth and Planetary Science Letters

News

12 Nov 2020
A team of researchers has discovered more about the grain-scale fluid connectivity beneath the earth's surface, shedding new light on fluid circulation and seismic velocity anomalies in subduction zones.
27 Sep 2020
Researchers have shaken up a once accepted timeline for cataclysmic events in the early solar system. Geological and geochemical records indicate that the Earth-Moon system experienced a period of frequent and cataclysmic impacts from asteroids and other bodies. It was thought that this period had a relatively sudden onset, but the researchers have found evidence that this bombardment period may have started much earlier, and decreased in intensity over time.
Ratio of dislocation glide versus climb velocities in wadsleyite and ringwoodite.
30 Jul 2020
In a recently published paper in Earth and Planetary Science Letters, researchers from the Geodynamics Research Center, Ehime University and the University of Lille combine numerical modeling of dislocation glide and results from diffusion experiments to revisit the rheology of wadsleyite, ringwoodite and majorite garnet under geological strain rates across the transition zone of the Earth’s mantle based on theoretical plasticity modeling.
The electron micrograph of the recovered sample
01 Jul 2019
It is believed that terrestrial planets were made from chondrites. However, geochemical observations have shown that the abundance pattern of volatile elements is inconsistent with chondrites. New high-pressure experiments suggest that F and Cl fractionation during magma ocean crystallization could explain the non-chondritic Earth's F/Cl ratio.
Image Name
08 May 2019
Scientists have employed a new method utilizing tsunami signals to calculate the calving magnitude of an ocean-terminating glacier in northwestern Greenland, uncovering correlations between calving flux and environmental factors such as air temperature, ice speed, and ocean tides.
Ice Wedge
11 Apr 2019
Evidence of historic marine life present in Alaskan permafrost is helping scientists reconstruct ancient changes in the ice cover over the Arctic Ocean.
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18 Aug 2015
A new study shown that meteorite impacts on ancient oceans may have created nucleobases and amino acids.
Hakuba Happo
22 Jan 2014
(Tokyo, 22 Jan 2014) Researchers at Tokyo Institute of Technology reveal mechanisms for the formation of methane, which may have been a crucial stage in the origin of life on Earth.

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