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Search results for “Geochemistry”

643 results for "Geochemistry"

Rock weathering tells a new story: more erosion does not always mean more carbon consumption

A study of the Lancang River basin found that silicate weathering rates decrease with increasing erosion, while carbonate and sulfide oxidation rates increase. The study suggests that lithology, suspended sediment weathering, and groundwater input control chemical weathering and its carbon effect in large river basins.

SourceScience China Press·JournalScience China Earth Sciences·TypeObservational study·DateSep 30, 2026

Mystery surrounding the formation of asteroid Bennu solved

ETH Zurich researchers analyzed asteroid Bennu's samples, revealing a Jupiter-led scenario and insights into the Solar System's early formation. The findings suggest that Bennu and other asteroids formed in a specific zone where material from the inner and outer regions mixed, with Jupiter playing a key role in this process.

SourceETH Zurich·JournalScience Advances·DateSep 23, 2026

NEW Community debuts at Goldschmidt 2026: An open scholarly community connecting artificial intelligence, environmental science, and geochemical research

NEW Community facilitated international outreach and scholarly exchange during Goldschmidt 2026, focusing on artificial intelligence, environmental science, and sustainability. The platform presented its potential role in interdisciplinary collaboration and open scholarly communication.

FSU scientists find gas emissions from rocks may have contributed to ancient climate swings, mass extinctions

Researchers discovered natural sulfur and carbon emissions from metamorphic rocks contribute to cooling spikes, while carbon remains in the atmosphere for centuries, influencing ancient ecosystem reorganizations. These findings shed new light on mass-extinction events, such as the Ordovician, Devonian, Permian, and Triassic Periods.

SourceFlorida State University·JournalScience Advances·DateJul 8, 2026

How a landmark study revealed the Great Barrier Reef’s survival over 30,000 years of upheaval

A review paper synthesizes nearly 20 years of research on the Great Barrier Reef's responses to sea-level shifts, finding five distinct reef phases that formed, drowned, and reformed over 30,000 years. The study highlights the reefs' dynamic nature and reveals they were shaped by multiple environmental pressures.

SourceUniversity of Sydney·JournalMarine Geology·TypeObservational study·DateJun 29, 2026

One of the Earth’s most important plate boundaries is older than previously thought

Researchers found evidence that the Aleutian Islands' subduction beneath the North American Plate occurred at least 56 million years ago, significantly earlier than previously thought. This discovery has implications for understanding tectonic and climatic processes that shaped the Earth's history.

SourceHelmholtz Centre for Ocean Research Kiel (GEOMAR)·JournalNature Communications·TypeObservational study·DateJun 16, 2026

Quaise Energy on track to build world’s first power plant using superhot geothermal energy

Quaise Energy is building the world's first power plant using superhot geothermal energy, with the goal of producing at least 50 megawatts of clean electricity. The project aims to harness temperatures greater than 300 degrees C and validate its long-held hypothesis that higher subsurface temperatures can improve power production.

SourceScience Communications·TypeComputational simulation/modeling·DateApr 22, 2026

How uranium from mining enters the environment

A study investigates uranium exposure in children living near gold mining dumps and finds higher levels of uranium in their hair compared to children from reference sites. The study collected over 400 hair samples and analyzed them alongside information on the children's age, gender, and living conditions.

SourceHelmholtz-Zentrum Dresden-Rossendorf·JournalEnvironmental Geochemistry and Health·TypeExperimental study·DateJan 29, 2026

Microplastics detected in rural woodland

Researchers detected up to 500 microscopic plastic particles per square meter per day in a rural woodland area, almost twice as much as in an urban location. The study reveals that trees and vegetation capture airborne microplastic particles from the atmosphere.

SourceUniversity of Leeds·JournalEnvironmental Pollution·TypeObservational study·DateJan 11, 2026

Potentially toxic elements in bananas grown in the Mariana disaster region exceed FAO limits

The study found that consuming bananas grown in soil impacted by iron mining waste poses a possible health risk to children aged six years or younger. The team correlated the risk to human health with the transfer of toxic elements from the soil to the plant, revealing high concentrations of cadmium, chromium, and other metals.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalEnvironmental Geochemistry and Health·DateDec 19, 2025

New study reveals Industrial Revolution’s uneven health impacts across England

A new study has uncovered hidden stories of pollution, gender, and life in industrializing Britain by analyzing bone chemistry and isotopic analysis of skeletal remains from two English towns. The findings reveal that exposure to toxic elements varied significantly across communities, sexes, and social identities.

Antarctic mountains could boost ocean carbon absorption as ice sheets thin

New research reveals that Antarctic mountain peaks can significantly increase the supply of vital nutrients to the Southern Ocean, enhancing its ability to absorb atmospheric carbon dioxide. Sediments from exposed rock surfaces contain higher concentrations of bioavailable iron, which fuels phytoplankton growth and absorbs CO2 through ...

SourceNorthumbria University·JournalNature Communications·TypeData/statistical analysis·DateNov 24, 2025

Earth's heart is frozen yet flowing

Scientists have discovered that Earth's inner core exists in a superionic state, where light elements flow through a solid iron lattice, dramatically softening it. This discovery redefines our understanding of the planet's deepest interior and offers new perspectives on seismic anisotropy and Earth's magnetic field.

SourceScience China Press·JournalNational Science Review·TypeExperimental study·DateNov 13, 2025

Plastic pollution could linger at ocean surfaces for over a century, new research finds

A new model shows that buoyant plastics degrade slowly at the surface, fragmenting into smaller particles over decades. These tiny fragments can then sink to the ocean floor, but it may take more than 100 years for surface plastic waste to disappear.

SourceQueen Mary University of London·JournalPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences·TypeComputational simulation/modeling·DateOct 23, 2025

Collaboration between academic research and business to better grasp environmental issues relating to the uranium mining cycle

The M-Cube associated research laboratory combines micron-level visualization tools with precise mineralogical and geochemical analyses to identify new avenues for optimizing the mining cycle. The collaboration aims to reduce the environmental impact of uranium mining sites and better understand the mobility of radioactive descendants.

SourceCNRS·TypeExperimental study·DateOct 8, 2025

Welsh mine microbes mapped to help heat homes

A team of microbiologists has mapped the multitude of microbes present in mine water, influencing its chemistry and impact on geothermal energy capture. Understanding microbial activity is crucial for designing efficient and resilient geothermal systems.

SourceAberystwyth·JournalFEMS Microbiology Ecology·TypeData/statistical analysis·DateAug 26, 2025

Geochronology and geochemistry of mafic rocks in the Wutai area, North China: Constraints on the latest Neoarchean–Paleoproterozoic tectonic setting of the Trans-North China Orogen and the onset of plate tectonics

Researchers uncover significant tectonic transition from subduction-related magmatism to extensional back-arc basin magmatism in Wutai Complex. The study suggests plate tectonics began operating by the latest Neoarchean, challenging traditional views of stagnant-lid tectonics.

SourceELSP·JournalContinent & Life Evolution·TypeExperimental study·DateJul 10, 2025

Junggar basin sediments reveal interplay between Solar System chaos and Earth’s carbon cycle

Researchers analyzed Junggar Basin sediments, revealing a previously unrecognized 1.6-million-year cycle in the carbon isotope record, distinct from the current grand eccentricity cycle. This variation provides concrete geological evidence of Solar System chaos and its impact on Earth's climate and carbon cycle.

SourceChinese Academy of Sciences Headquarters·JournalProceedings of the National Academy of Sciences·DateJun 30, 2025