Mineralogy

The high water storage capacity of minerals in Earth’s mantle transition zone (410- to 660-kilometer depth) implies the possibility of a deep H2O reservoir, which could cause dehydration melting of vertically flowing mantle.

Geochemistry

Updated by Dionysis Foustoukos 

Geochemistry

Washington, DC— Mineral evolution is a new way to look at our planet’s history.

Geochemistry

Washington, DC — In order to understand Earth's earliest history--its formation from Solar System material into the present-day layering of metal core and mantle, and crust--scientists look to meteorites.

Materials

Washington, DC, 12 January 2012- Carnegie Researchers report advances in the synthesis of multicarat colorless single-crystal diamond by chemical vapor deposition techniques.

Geochemistry

Washington, DC— Scientists have long debated about the origin of carbon in Earth’s oldest sedimentary rocks and how it might signal the remnants of the earliest forms of life on the planet.

Geochemistry, Planetary Science

Washington, DC—Formaldehyde, a poison and a common molecule throughout the universe, is likely the source of the solar system’s organic carbon solids—abundant in both comets and asteroids.

Geochemistry

Washington, DC—Surprising new research shows that, contrary to conventional belief, remains of chitin-protein complex—structural materials containing protein and polysaccharide—are present in abundance in fossils of arthropods from the Paleozoic era.

Geochemistry

Washington, DC, 1 January 2011-This is an image of organic carbon in a ordinary chondritic meteorite obtained using a scanning transmission X-ray microscope at the Advanced Light Source, Lawrence Berkeley Laboratory.

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