Science ❯ Geochemistry

Isotope Geochemistry

Oxygen Isotopes Radioactive Decay Sulfur Isotopes Radiometric Dating Carbon Isotope Analysis Noble Gases Nitrogen Isotopes Hydrogen Isotopes Isotopic Composition Calcium Isotopes Neodymium Isotopes Tektite Composition Radioactive Isotopes Helium-3 and Thorium-230 U-Pb Dating Vanadium Isotopes Ruthenium Isotopes

PNAS Study Finds Rare Water-Rich Meteorite Relics in Chang'e-6 Far-Side Samples

CI-like fragments identified by chemistry and triple-oxygen isotopes suggest volatile-bearing asteroids delivered material to the Earth–Moon system.

Study Pinpoints a Dry Proto‑Earth Within 3 Million Years, Bolstering Theia Water‑Delivery Theory

Australian 'Ananguites' Point to a Giant 11-Million-Year-Old Impact With No Known Crater