Science ❯ Geochemistry

Isotope Geochemistry

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

Scientists Find First Garnet in Martian Meteorite

Isotopic analyses are planned to determine whether the tiny andradite grains formed on Mars or arrived as foreign fragments.

Mantle Gases Detected in Zambia’s Kafue Rift Point to Early-Stage Rifting

Earth Formed Entirely from Inner Solar System Material, Study Finds

Apollo Soil Study Finds Meteorites Supplied Only a Small Share of Earth’s Water

NASA Study of Apollo Moon Soil Finds Meteorites Supplied Only a Small Share of Earth’s Water

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

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