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Isotope Geochemistry

Potassium Isotopes Ruthenium Isotopes Lunar Soil Analysis Noble Gas Studies Pb-Pb Dating Carbon Cycle Strontium Isotopes Thallium Isotopes Osmium Isotopes Potassium Signatures Nitrogen Isotopes Lithium Isotopes

Ancient Mantle Rocks Reveal Potassium-40 Deficit Linked to Surviving Proto‑Earth

High‑precision measurements tie a rare isotopic signal to material that predates the Moon‑forming impact.

MIT Team Finds Potassium-40 Anomaly That Points to Surviving Proto‑Earth Mantle

Study Confirms Earth's Core Leaks Gold and Precious Metals Into Mantle