EurekAlert! News by Subject: Earth Science - News by Subject: Earth Science

Earth Science

Updates every hour. Last Updated: 16-Dec-2025 14:11 ET (16-Dec-2025 19:11 GMT/UTC)

8-Jul-2025

The world’s largest carbonate-hosted Zn-Pb deposit

This study deciphers the genesis of the Huoshaoyun deposit, the world's largest carbonate-hosted Zn-Pb system, through ore characteristics, isotopes, and trace elements, revealing multi-stage mineralization linked to crust-mantle interaction and Jurassic volcanic-hydrothermal processes.

Journal: Geoscience Frontiers

8-Jul-2025

Duration of heat waves accelerating faster than global warming

University of California - Los Angeles
Peer-Reviewed Publication

UCLA research found that each fraction of a degree of warming will have a bigger impact than the last on lengthening heat waves, with the most extreme heat waves — which can last for weeks — lengthening the most. The duration of a heat wave compounds the risk to people, animals, agriculture and ecosystems. Tropical regions will see larger changes than temperate regions, and summer heat waves will lengthen more than winter warm spells.

Journal: Nature Geoscience
Funder: National Science Foundation

8-Jul-2025

How lakes connect to groundwater critical for resilience to climate change, research finds

European Association of Geochemistry
Reports and Proceedings

Understanding whether lakes are fed predominantly by groundwater or rainwater is critical to managing our water resources in the face of droughts and shortages, new research has found.

Meeting: Goldschmidt 2025

8-Jul-2025

Youngest basaltic lunar meteorite fills nearly one billion-year gap in Moon’s volcanic history

European Association of Geochemistry
Reports and Proceedings

A 2.35-billion-year-old meteorite with a unique chemical signature, found in Africa in 2023, plugs a major gap in our understanding of the Moon’s volcanic history.

Funder: Royal Society
Meeting: Goldschmidt 2025

8-Jul-2025

Tree pollen reveals 150,000 years of monsoon history—and a warning for Australia’s northern rainfall

Flinders University
Peer-Reviewed Publication

Northern Australia's annual monsoon season brings relief to drought-stricken lands and revitalises crops and livestock for farmers. But a study of 150,000 years of climate records shows that the monsoon is likely to intensify, triggering a higher risk of flooding while worsening the impact of droughts in East Asia.

Journal: Quaternary Science Reviews
Funder: Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage, Australian Research Council Centre for Indigenous and Environmental Histories and Futures, Australian Research Council Laureate Fellowship

8-Jul-2025

Elucidating the source process of the 2021 south sandwich islands tsunami earthquake

University of Tsukuba
Peer-Reviewed Publication

Researchers at University of Tsukuba analyzed seismic waveform data from the tsunami earthquake that occurred off the British South Sandwich Islands in the South Atlantic Ocean in August 2021. Researchers revealed a complex rupture process comprising four distinct episodes, each characterized by different dynamic behaviors. These findings advance the understanding of tsunami earthquake mechanisms and may inform future strategies for hazard assessment and mitigation.

Journal: Scientific Reports

8-Jul-2025

Revealing Myanmar earthquake as a unique event comprising multiple sub-events, including boomerang-like reverse rupture propagation and supershear rupture

University of Tsukuba
Peer-Reviewed Publication

Researchers at University of Tsukuba analyzed the source process of a significant earthquake that occurred in Myanmar in March 2025 using a novel approach, the potency density tensor inversion method. Unlike conventional methods, this approach does not assume the rupture propagation direction or fault geometry, allowing for a more flexible and accurate analysis. The results revealed an exceptionally complex source process characterized by asymmetric and rapid rupture growth that repeatedly propagated along the fault in both the north and south directions.

Journal: Seismica