A rough diamond from Kankan, Guinea, that was analyzed in a new study led by a PhD student at the U of A. The imperfections inside the diamond are small inclusions of a mineral called ferropericlase, which is from the lower mantle. Credit: Anetta Banas

Uncovering new understanding of Earth’s carbon cycle

carbon cycle

Understanding Earth’s ‘deep-carbon cycle’

Eurypterid specimen image: Images of the eurypterid specimen fossil that led to Lamsdell’s discovery. Credit: Melanie Hopkins Photo

Coming up for air: Extinct sea scorpions could breathe out of...

Researchers collected and analyzed permafrost from four sites in the Yukon to develop a new technique to tease ancient DNA from soil, pulling the genomes of hundreds of extinct animals and thousands of plants from less than a gram of sediment. Credit: Tyler Murchie/ McMaster University

Thousands of species recorded in a speck of soil

A plume of ash and dust rises from Pavlof Volcano on the Alaskan Peninsula in 2013. Credit: NASA

Volcanic ash may have a bigger impact on the climate than...

Enhanced map of hematite (red) on Moon using a spheric projection (nearside only). Credit: Shuai Li

Has Earth’s oxygen rusted the Moon for billions of years?

Seismogram

Superheated rocks deep underground help explain earthquake patterns

Bezymianny is an active stratovolcano on the Kamchatka peninsula in eastern Russia. Credit: GFZ

Rebirth of a volcano : Evolution of Bezymianny volcano, Kamchatka after...

Location and geological map of Yukinoura district, Saikai City, Nagasaki Prefecture, Japan. Credit: Professor Tadao Nishiyama

Japan’s geologic history in question after discovery of metamorphic rock microdiamonds

A huge mammoth graveyard has been uncovered at the site of Mexico City's new airport

Mammoth graveyard unearthed at Mexico’s new airport

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