Our new paper, published in Nature Geoscience, came out last week! We used oxygen isotopes in Archean ocean crust as a record of seawater oxygen isotope composition. Our main finding suggests there was really little emergent continental crust, and the Earth may have resembled a water world. Take a read here: https://rdcu.be/b2pgB We've also been getting some fun press with this study, check out some interviews and articles below:
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