geochemistry

Probing the origin of the mantle’s chemically distinct “scars”

Basalt - Basalt, the most-common rock on Earth’s surface, encases green crystals--a geologic "nesting doll" phenomenon called a xenolith. Basalts such as this one derive from a section of the mantle that has been depleted in incompatible trace elements, w

 The composition of Earth’s mantle was shaped by interactions with the oceanic crust more than previously thought, according to work from Carnegie’s Jonathan Tucker and Peter van Keken along with colleagues from Oxford that was recently published in Geochemistry, Geophysics, Geosystems.

Read more...

Postdoc Spotlight: Peng Ni - Geochemical Detective

Peng Ni holds a piece of iron meteorite. Thin for news tile

In this Postdoc Spotlight, Ni discusses how he got interested in experimental geochemistry, his most recent publication, and his love of photography.

Read more...

Behind the Scenes Spotlight: Interview with Mary Horan

Mary Horan - 1.7.2020 - Chemistry Lab-12.jpg

This month we’re starting a new series looking behind the scenes at the people who make the Carnegie Earth and Planets Laboratory run smoothly. Kicking us off is Mary Horan, the geochemistry lab manager. In this interview, Horan discusses her work here on campus and posits what the future of the field will hold. Plus, Horan describes the technical side of isotope geochemistry in relation to one of her own research projects.

Read more...

For #Apollo50th, 3 Things We Didn’t Know Before Landing on the Moon

For #Apollo50th, 3 Things We Didn’t Know Before Landing on the Moon

In honor of Apollo 11’s 50th anniversary, Carnegie DTM Director Rick Carlson summarized some of the science made possible by lunar samples brought back to Earth.

Read more...

Smithsonian to Share Erik Hauri’s Rocks with Scientific Community

Smithsonian to Share Erik Hauri’s Rocks with Scientific Community

The Smithsonian Institutions’ Department of Mineral Sciences visited DTM in mid-March, late May, and early June to coordinate the acquisition of the late Erik Hauri’s rock collection.

Read more...

Diamonds Reveal How Continents Are Stabilized, Key to Earth's Habitability

Diamonds Reveal How Continents Are Stabilized, Key to Earth's Habitability

New research by a group of geoscientists from Carnegie, the Gemological Institute of America, and the University of Alberta demonstrates that diamonds can be used to reveal how a buoyant section of mantle beneath some of the continents became thick enough to provide long-term stability.

Read more...

Pages