Volcanic plumbing at mid-ocean ridges goes far deeper than thought
(Phys.org) —Two-thirds of earth's surface is covered in oceanic crust, but the deep plumbing that generates new crust remains poorly understood. New images from a chain of volcanoes beneath the Pacific ...
Solar dimming caused by air pollution increases river-flows
A study published in Nature Geoscience shows that air pollution has had a significant impact on the amount of water flowing through many rivers in the northern hemisphere.
'Just right' plant growth may make river deltas resilient
Research by Indiana University geologists suggests that an intermediate amount of vegetation—not too little and not too much—is most effective at stabilizing freshwater river deltas.
Burrowing animals may have been key to stabilizing Earth's oxygen
Evolution of the first burrowing animals may have played a major role in stabilizing the Earth's oxygen reservoir, according to a new study in Nature Geoscience.
Researchers figure out how oddly shaped sandstone landform structures come about
Walking the rocks: Researchers study undergraduate field education
In the July 2014 issue of GSA Today, Heather Petcovic of Western Michigan University and colleagues Alison Stokes and Joshua Caulkins examine the question of geoscientists' perceptions of the value of und ...
Melting and refreezing of deep Greenland ice speeds flow to sea, study says
Beneath the barren whiteness of Greenland, a mysterious world has popped into view. Using ice-penetrating radar, researchers have discovered ragged blocks of ice as tall as city skyscrapers and as wide as ...
New report details more geoscience job opportunities than students
In the American Geosciences Institute's newest Status of the Geoscience Workforce Report, released May 2014, jobs requiring training in the geosciences continue to be lucrative and in-demand. Even with increased ...
Cutoff switch may limit spread, duration of oxygen minimum zones
A new study examining the impact of iron released from continental margin sediments has documented a natural limiting switch that may keep these ocean systems from developing a runaway feedback loop that ...
Study reveals four new man-made gases in the atmosphere
Scientists at the University of East Anglia have identified four new man-made gases in the atmosphere – all of which are contributing to the destruction of the ozone layer.
New research technique shows perennial sea ice cover came about earlier than thought
Researchers bulldoze desert to learn how sand dunes form
Land bulge clue to aviation threat from volcanoes
Bulging in land that occurs before a volcano erupts points to how much ash will be spewed into the sky, providing a useful early warning for aviation, geologists in Iceland said on Sunday.
Evidence found for granite on Mars
Researchers now have stronger evidence of granite on Mars and a new theory for how the granite – an igneous rock common on Earth—could have formed there, according to a new study. The findings suggest ...