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This week from AGU: Clues to life's origins, Martian dust storms, and more

American Geophysical Union

New study questions source of rare Earth metals that provide clues to life's origins
A new study in Geochemistry, Geophysics, Geosystems is reviving a decades-old debate about how Earth's rarest elements came to exist on our planet - theories that have implications for the origin of life.

NASA Mars orbiters reveal seasonal dust storm pattern
For six recent Martian years, temperature records from NASA Mars orbiters reveal a pattern of three types of large regional dust storms occurring in sequence at about the same times each year during the southern hemisphere spring and summer, according to a new study in Geophysical Research Letters.
Multicolor terrain mapping documents critical environments
The Titan airborne topographic laser system takes spatial and spectral data at three wavelengths at once, mapping threats from climate change and ecological disasters in regions with complex terrain.

Research Spotlights
A river runs through it, but why?
Researchers investigate the factors that cause river terraces to form in a new study in the Journal of Geophysical Research: Earth Surface.

Can mangroves buffer ocean acidification?
New research in Global Biogeochemical Cycles evaluates the ability of coastal foliage to influence the ocean's pH.


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