Samples of sediment taken from the ocean floor of the North Atlantic Ocean have given researchers an unprecedented insight into the reasons why Europe's climate has changed over the past 3,000 years.
While the world focuses on controlling global warming caused by CO2 emissions from fossil fuels, less attention has been paid to the capacity of vegetation and soils to take up and store carbon. A remote field site in the Norwegian mountains is improving our understanding of carbon cycling in high-latitude alpine areas.
New research on oxygen and iron chemistry under the extreme conditions found deep inside the Earth could explain a longstanding seismic mystery called ultralow velocity zones. Published in Nature, the findings could have far-reaching implications on our understanding of Earth's geologic history, including life-altering events such as the Great Oxygenation Event, which occurred 2.4 billion years ago.
How deep can seawater penetrate through cracks and fissures into the seafloor? By applying a new analysis method, an international team of researchers lead by GEOMAR Helmholtz Centre for Ocean Research Kiel has now discovered that the water can penetrate to depths of more than 10 kilometres below the seafloor. This result suggests a stronger cooling effect on the hot mantle. The study was published in the international journal Contributions to Mineralogy and Petrology.
How good is your Martian geography? In a new research paper published in EPJ Plus, Fabio De Blasio and colleagues from Milano-Bicocca University, Italy, explain the extent to which ice may have been an important medium of lubrication for landslides on Mars.
In a new study, geophysicists from the University of Pennsylvania found that granular segregation helps explain the tendency of riverbeds to be lined by, or 'armored' with, a layer of relatively larger particles.
The first observation of a super-hydrated phase of the clay mineral kaolinite could improve our understanding of processes leading to volcanism and affecting earthquakes. In the lab, scientists created conditions similar to those in subduction zones where an oceanic plate dives under the continental crust. Transport of water with subducting plates causes volcanic activity. The team led by scientists from Yonsei University in the Republic of Korea presents its results in the journal Nature Geoscience.
Ever wondered what makes a soil, soil? And could soil from the Amazon rainforest really be the same as soil from your garden?
If someone cries 'Eureka!' because it looks like oxygen appeared in Earth's ancient atmosphere long before the body of evidence indicated, be careful. If it was a chromium isotope system reading that caused the enthusiasm, it might need to be curbed.
Groundwater depletion could be significant source of atmospheric carbon dioxide.