Two Dartmouth researchers have quantified the chemical weathering rates of bedrock at three sites around the world. By concentrating their testing in localized areas and using X-ray fluorescence to measure elements and oxides, they have found that variations in the chemistry of weathered bedrock (clay) do not always follow the patterns of the underlying bedrock.
This study by Earth sciences graduate student Benjamin Burke and Assistant Professor Arjun Heimsath will be presented at The Geological Society of Americas annual meeting, November 2-5 in Seattle, WA. Their research helps predict future soil production and erosion in similar landscapes, and may someday predict areas of mineral-rich soil for agricultural purposes.
Burke and Heimsath are studying the rate of soil production, erosion and mineral weathering on landscapes built on granite. Wind and water physically wear down landscapes, while chemical weathering occurs more slowly as water works into the earth to break down rock into clay and other minerals.
Susan Knapp | Dartmouth College
A close-up look at an uncommon underwater eruption
11.01.2018 | Woods Hole Oceanographic Institution
Environmental history told by sludge: Global warming lets the dead zones in the Black Sea grow
10.01.2018 | Leibniz-Institut für Ostseeforschung Warnemünde
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
16.01.2018 | Materials Sciences
16.01.2018 | Materials Sciences
16.01.2018 | Power and Electrical Engineering