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sediments

An aerial photo of Alaska’s Copper River Delta
Posted inResearch Spotlights

Tectonics and Climate Are Shaping an Alaskan Ecosystem

by Nathaniel Scharping 16 October 202516 October 2025

Biogeochemical research reveals the web of forces acting on a high-latitude microbe community in the Copper River Delta.

A lake, surrounded by low hills and trees, is overlooked from a nearby hill. In the mid-ground, a white truck drives across the frame.
Posted inResearch Spotlights

New 3D Model Reveals Geophysical Structures Beneath Britain

by Nathaniel Scharping 10 October 202510 October 2025

Using magnetotelluric data to identify subsurface electrically conductive and resistive areas, scientists can identify underground features and predict how space weather may affect infrastructure.

Layers of beige-colored rock with a vertical band of darker-colored rock. A yellow notebook appears at the bottom of the image.
Posted inNews

Spiky Sand Features Can Reveal the Timing of Ancient Earthquakes

Katherine Kornei, Science Writer by Katherine Kornei 30 September 202530 September 2025

Icicle-shaped features known as sand dikes form during ground shaking. New work reveals how these features can be used to date long-ago earthquakes.

A researcher wearing waders stands ankle deep in muddy sediment, bending over to extract a water sample from the sediment using a plastic syringe.
Posted inScience Updates

Tracing Iron’s Invisible Transformations Just Beneath Our Feet

by Andrew R. C. Grigg, Katrin Schiedung, Joëlle Kubeneck and Ruben Kretzschmar 19 September 202519 September 2025

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.

Photo of sand ripples underwater.
Posted inEditors' Highlights

A First Look at How Sand Behaves Inside a Rippled Bed

by Ryan P. Mulligan 11 September 202511 September 2025

A detailed numerical model shows how sediment particles experience wave-driven shear stress inside and above a sea bed with sand ripples.

A large iceberg floats in blue Arctic Ocean water.
Posted inNews

Arctic Ice Shelf Theory Challenged by Ancient Algae

by Andrew Chapman 13 August 202513 August 2025

Chemical signatures of marine organisms reveal that seasonal sea ice, not a massive ice shelf, persisted in the southern Arctic Ocean for 750,000 years.

卫星图像显示了一条辫状河。
Posted inResearch Spotlights

布拉马普特拉-贾木纳河的迁移并非无规律可循

by Rebecca Owen 12 August 202512 August 2025

辫状河流系统中的河道线可能比以前认为的更容易预测。

An image of a slab of coral. Dark and light bands can be seen, which correlate with growing seasons.
Posted inNews

Coral Cores Pinpoint Onset of Industrial Deforestation

by Grace van Deelen 7 August 20251 January 2026

Trace elements in coral reefs provide a timeline of how Borneo’s rainforests have been altered by industry.

一个清澈的蓝色湖泊位于前景中广阔的干燥土地和背景中高耸的灰色山脉之间,山脉的底部覆盖着常绿的树木。
Posted inResearch Spotlights

地震如何改变湖泊微生物群落

by Rebecca Owen 6 August 20256 August 2025

提示:地震发生后,湖泊的地质、化学和生物成分会重新配置。一项新的研究深入探讨了地震变化对喜马拉雅地区措普湖的影响。

A clear blue lake lies between an expanse of dry dirt in the foreground and towering gray mountains whose lower reaches are covered in evergreen trees in the background.
Posted inResearch Spotlights

How Earthquakes Shake Up Microbial Lake Communities

by Rebecca Owen 24 July 20256 August 2025

After an earthquake, a lake’s geological, chemical, and biological components get reconfigured. A new study dives into the effects of seismic shifts on the Himalayas’ Lake Cuopu.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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What Makes Mars’s Magnetotail Flap?

20 April 202620 April 2026
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Weather Radar Data Reveal the Dynamics of Rapidly Spreading Wildfires

21 April 202616 April 2026
Editors' Vox

Can Any Single Satellite Keep Up with the World’s Floods?

20 April 202620 April 2026
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