By examining volcanic rocks retrieved from deep in the ocean, scientists have found they can estimate the carbon dioxide stored beneath much of the earths surface – a development that could enhance understanding of how volcanoes affect climate. The research by University of Florida scientists and others will be reported this week in the journal Nature.
Scientists examined chunks of basalt, a type of volcanic rock formed when lava cools, from 12,000 feet below the Pacific along a massive geographical formation called the midocean ridge. The scientists discovered in these basalts traces of carbon dioxide and other compounds that originated deep within the Earths mantle, the source of most volcanic activity. Because compounds from this inaccessible region had never been found so well preserved, the rocks gave scientists a rare peek at what the mantle consists of – and what it might spew into the atmosphere through volcanoes.
"Most lava erupts at the surface and has lost its gases. From a geochemists point of view, you need to know what the composition of the mantle really is," said Mike Perfit, a UF geology professor and co-author of the Nature paper. "This kind of data might be useful in talking about the contribution of the mantle to the atmosphere and hydrosphere and how those concentrations might affect the climate."
Mike Perfit | EurekAlert!
NASA looks to solar eclipse to help understand Earth's energy system
21.07.2017 | NASA/Goddard Space Flight Center
Scientists shed light on carbon's descent into the deep Earth
19.07.2017 | European Synchrotron Radiation Facility
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
21.07.2017 | Earth Sciences
21.07.2017 | Power and Electrical Engineering
21.07.2017 | Physics and Astronomy