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isotopes

Imagen satelital de un paisaje rocoso en tonos marrones y rojizos, con llamativos pliegues y curvas geológicas.
Posted inResearch Spotlights

Un antiguo evento de calentamiento podría haber durado más de lo que pensábamos

by Rebecca Owen 2 July 20252 July 2025

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.

Close-up view of pieces of sea ice separated by a strip of open water.
Posted inScience Updates

Finding Consensus on Arctic Ocean Climate History

by Jochen Knies, Matt O’Regan and Claude Hillaire Marcel 25 June 202525 June 2025

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.

Graphs and TIMA images from the paper.
Posted inEditors' Highlights

Coupled Isotopes Reveal Sedimentary Sources of Rare Metal Granites

by Paul Asimow 17 June 202516 June 2025

Using coupled isotopes, a new study shows that a class of economically important granites are derived by sediment melting without mantle input.

A silver cooler with 20 round hailstones
Posted inNews

Isotopes Map Hailstones’ Paths Through Clouds

by Carolyn Wilke 30 May 20253 June 2025

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.

Satellite image of a brown and red rocky landscape with striking geologic folds and curves
Posted inResearch Spotlights

An Ancient Warming Event May Have Lasted Longer Than We Thought

by Rebecca Owen 15 May 20252 July 2025

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.

A green hill sits beneath a blue sky.
Posted inResearch Spotlights

Isotopes Unearth History of Earthquakes in the Apennines

by Nathaniel Scharping 17 April 202517 April 2025

Dating of cosmogenic chlorine isotopes yields long-term estimates of fault activity in Italy, showing that periods of earthquakes and quiescence alternate over millennia.

Diagram from the study.
Posted inEditors' Highlights

Taking Our Paleoceanographic Tools to the Next Level

by David Thornalley 2 April 202527 March 2025

A new modeling study shows that to accurately interpret data derived from an iconic proxy of past Atlantic overturning strength, we must consider the complex factors governing the proxy systematics.

Diagram of the model presented in the paper.
Posted inEditors' Highlights

Hawai’i’s Depleted Peridotite Delivers More Magma

by Vincent Salters 24 March 202524 March 2025

The source for the isotopically-enriched Hawaiian magmas contains peridotites that experienced near-surface melting prior incorporation in the plume.

An image from under a microscope of luminous objects shaped like seashells. The background is a purplish blue color.
Posted inResearch Spotlights

Getting to the Bottom of Cenozoic Deep-Ocean Temperatures

Aaron Sidder, freelance science writer by Aaron Sidder 2 December 20242 December 2024

Reconstructing past ocean conditions with oxygen isotopes could provide more information about how Earth’s climate evolved over time, but methods for reconstructing these data can yield varying results.

海洋附近的火山喷发将烟雾和蒸汽送入天空。
Posted inResearch Spotlights

追踪古萨摩亚消失的地幔柱

by Nathaniel Scharping 26 November 202426 November 2024

一层厚厚的地壳可能盖住了萨摩亚火山柱,抑制了火山活动3000万年,这就解释了萨摩亚火山链上一个奇怪的裂缝。

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How Earthquakes Shake Up Microbial Lake Communities

24 July 202524 July 2025
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Mapping the Whereabouts of Continents

24 July 202523 July 2025
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JGR: Space Physics Launches New Instrumentation Article Type

23 July 202521 July 2025
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