Diamonds are geochemists best friend

In 2005, Carnegie scientists discover the world's oldest diamonds, the inclusions in which function as time capsules that record ancient movements of continents and the origins of plate tectonics

Exploring Earth's Early Years

The chemical signatures of rocks hold clues to the deep history of our planet—if you know where to look.

Geochemists at the Earth & Planets Laboratory combine laboratory and field studies of modern and ancient rocks from diverse geographic areas to investigate the origin of Earth’s crust and the dynamic processes that exchange material between surface and interior. Their goal? To create a chemical timeline of the Earth's early development.

Top Questions

Jianhua Wang With NanoSIMS

Tools of the Trade

We maintain six mass spectrometers for analyzing trace elements and isotope ratios at high sensitivity, high precision, and/or high spatial resolution. Our scientists share four electron beam instruments for the characterization of sample surfaces and elemental compositions, as well as for focused ion beam lift out for additional characterization such as transmission electron microscopy. We also utilize solid-state NMR, Raman, and FTIR spectroscopy to characterize natural and experimental samples.

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