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.

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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