Plastic pollution in the deep sea: A geological perspective

A new focus article in the May issue of Geology summarizes research on plastic waste in marine and sedimentary environments. Authors I.A. Kane of the Univ. of Manchester and A. Fildani of the Deep Time Institute write that ...

What happened to Helike?

There is little to see today of Helike, just a few walls and artefacts scraped clean by archaeologists.

Rock-solid archives record variations in the Earth's orbit

The shape of Earth's orbit around the sun and the orientation of its axis undergo regular variations over periods of thousands to millions of years. These variations—known as Milankovitch cycles after the Serbian geophysicist ...

Microbial mats offer clues to life on early Earth

Ancient clusters of rock that preserve some of the oldest microbes on Earth occasionally possess mysterious branch-like formations. Now, scientists think they know what might have caused this enigmatic branching—changes ...

Life's history in iron

A new study examines how Earth's oldest iron formations could have been formed before oxygenic photosynthesis played a role in oxidizing iron.

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