Type 1 and 2 carbonaceous chondrites are primitive, organic-rich meteorites that may have delivered a significant amount of the carbon and nitrogen available for life’s emergence on Earth. Despite extensive chemical, structural, and isotopic…
Source: Proceedings of the National Academy of Sciences (PNAS) | Earth, Atmospheric and Planetary Sciences
Proceedings of the National Academy of Sciences (PNAS)
Topics: Earth, Atmospheric and Planetary Sciences- Cassiterite U–Pb geochronology: A framework for tin provenance in the Bronze Age world
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- Zinc isotopic evidence for an Archean initiation of deep carbon cycling
- Can a simple geoengineering approach restore dwindling Arctic ice?
- Magnetic vortex state of natural lunar γ-Fe
- Spatially refined satellite gravimetry captures human signatures in global terrestrial water storage trends
- Patagonian Ice Sheet discharge enhanced by AMOC slowdown through thermal bipolar seesaw
- Earthquake-triggered cascading hazards under Arctic amplification
- Illusory early-warning signals of Greenland Ice Sheet destabilization
- Viscous remanent magnetization authentication method for archaeological artifacts
