Analysis of surface samples from the Chang’e-6 mission suggests that an asteroid may have vaporized parts of the lunar mantle, suppressing volcanic activity on the farside of the Moon.
isotopes
Posted inEditors' Highlights
Calibrating the Clocks: Reconciling Groundwater Age from Two Isotopes
A new quantitative model corrects for tracer-based age biases from 39Ar and 14C isotopes leading to more accurate estimates of groundwater residence times.
Posted inResearch Spotlights
What Could Happen to the Ocean’s Carbon If AMOC Collapses
Mass glacier melting may have led this influential ocean current system to collapse at the end of the last ice age. A pair of modeling studies examines how such a collapse could affect dissolved inorganic carbon and carbon isotopes in Earth’s oceans.
Posted inScience Updates
Tracing Iron’s Invisible Transformations Just Beneath Our Feet
A new method that adds synthetic iron minerals to soils sheds light on hard-to-observe soil and sediment processes and may have a host of other applications in the Earth sciences and beyond.
Posted inResearch Spotlights
Un antiguo evento de calentamiento podría haber durado más de lo que pensábamos
Una nueva investigación sobre el Máximo Térmico del Paleoceno-Eoceno usó análisis probabilístico para entender mejor su duración y sobre cuánto tiempo podría afectar el calentamiento moderno al ciclo del carbono.
Posted inScience Updates
Finding Consensus on Arctic Ocean Climate History
Understanding the effects of a “blue” Arctic Ocean on future climate requires a coordinated effort to study Earth’s past warm periods using a variety of classical and cutting-edge methods.
Posted inEditors' Highlights
Coupled Isotopes Reveal Sedimentary Sources of Rare Metal Granites
Using coupled isotopes, a new study shows that a class of economically important granites are derived by sediment melting without mantle input.
Posted inNews
Isotopes Map Hailstones’ Paths Through Clouds
Hailstones have been said to bounce up and down through clouds as they grow. A new study found that many stones take much simpler paths.
Posted inResearch Spotlights
An Ancient Warming Event May Have Lasted Longer Than We Thought
New research on the Paleocene-Eocene Thermal Maximum used probabilistic analysis to learn more about its duration and how long modern warming could affect the carbon cycle.
Posted inResearch Spotlights
Isotopes Unearth History of Earthquakes in the Apennines
Dating of cosmogenic chlorine isotopes yields long-term estimates of fault activity in Italy, showing that periods of earthquakes and quiescence alternate over millennia.