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Metals

Two researchers in white lab coats conduct a flash Joule heating experiment.
Posted inNews

Extracting Rare Earth Elements from Waste with a Flash of Heat

by Rachel Fritts 14 March 202215 March 2022

A method called flash Joule heating could offer a more sustainable way to source essential components of electronics from coal fly ash.

A magnified view of white minerals embedded in a gray crustal rock
Posted inNews

The Goldilocks Zone May Be Just Right for Migrating Metals

by Kate Wheeling 9 March 20225 May 2022

Researchers identified a gateway that allows metals critical for renewable energy technologies, like copper and gold, to make their way to the surface.

A chat, or waste, pile near the Tar Creek Superfund site in Oklahoma.
Posted inNews

Community Input Drives Superfund Research

by Robin Donovan 14 December 20217 March 2022

Researchers identified geochemical tracers for lead and investigated Oklahomans’ concerns at the Tar Creek Superfund site.

A large magma furnace pours a mixture of silicate and metallic lava onto a flat surface, with a pool of semicooled lava flowing. The lava is black, orange, yellow, and silver.
Posted inNews

Imagining What a Metal Volcano Would Look Like

by Kimberly M. S. Cartier 21 April 202110 November 2021

Large-scale lava experiments are helping scientists imagine how metallic lava would flow across and shape a landscape, either on Earth or on a distant asteroid.

硅藻进化到用镉来替代锌
Posted inResearch Spotlights

硅藻是如何进化到利用有毒金属镉代替锌的?

by Sarah Stanley 1 April 20213 May 2022

网络分析表明,锌和镉硫化物在地质史上同步风化,在锌缺乏的情况下,镉可以作为光合途径的合适替代品。

Diatoms evolved to substitute cadmium for zinc.
Posted inResearch Spotlights

How Did Diatoms Evolve to Swap Zinc for the Toxic Metal Cadmium?

by Sarah Stanley 17 March 20213 May 2022

New network analysis suggests that zinc and cadmium sulfides weathered simultaneously in geological history, making cadmium a suitable substitute in photosynthetic pathways when zinc was scarce.

A woman in profile kneels, looking out over Indigenous land in Arizona.
Posted inNews

Contamination of Medicinal Plants: Implications for Indigenous Health

by R. Mazumdar 9 December 202015 October 2021

A new study will trace the legacy of uranium mining on commercially available medicinal plants.

Plot showing distribution of iron species at three locations
Posted inEditors' Highlights

Zero-valent Iron in the Oxidizing Atmosphere?

by Jonathan H. Jiang 26 October 20205 May 2022

A comparative study of urban, semi-urban, and rural sites reveals that the species of atmospheric iron varies depending on location.

Photograph of mine waste at heal Maid, Cornwall, UK
Posted inEditors' Vox

Exploring the Impacts of Mining on Planetary Health

by K. Hudson-Edwards 29 June 202015 October 2021

Papers are invited for a special collection presenting advances in understanding of the impacts of mining on human, ecosystem, and Earth surface environmental health.

Chart showing mercury stable isotope concentrations in tree rings
Posted inEditors' Highlights

Trees Are Watching Us and Our Actions

by Ankur R. Desai 31 March 20205 May 2022

Annual growth rings in trees tell us more than climate history; they can also document the rise and fall of human industrial activities.

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