Science ❯ Geochemistry

Isotope Geochemistry

Oxygen Isotopes Radioactive Decay Elemental Analysis Isotopic Composition Ruthenium Isotopes Neodymium Isotopes Hydrogen Isotopes U-Pb Dating Argon Dating Carbon Isotope Analysis

Mantle Helium in Zambia’s Kafue Rift Signals Early Tectonic Rifting

The finding offers a testable sign of an active rift that researchers will probe across the wider Southwest African Rift System this year.

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

Cosmic Dust Isotopes Chart 300,000 Years of Arctic Sea-Ice Change

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

New Study Links Comet 67P's Water to Earth's Oceans

Mars Meteorite Reveals Evidence of Ancient Liquid Water

Chang'e 5 Uncovers Recent Volcanic Activity on the Moon

New Study Traces Dinosaur-Killing Asteroid's Origin to Outer Solar System