Results 41 to 50 of about 353 (126)

Giant Porphyry Copper Deposits Caused by a Slab Jamming in the Mantle Transition Zone

open access: yesTerra Nova, EarlyView.
ABSTRACT Two giant porphyry copper deposits in the Southern Central Andes formed during the Miocene–Pliocene transition when a bend in the subducting Juan de Fernández hotspot chain jammed in the mantle transition zone, causing mega‐scale slab‐kinking. This geometry implies mechanical resistance that caused East–West compression and eventually a thrust‐
Nipaporn Nakrong   +5 more
wiley   +1 more source

Sustaining Science Infrastructure Is Difficult; Is Commercialization the Answer? The USA National Phenology Network's Experience

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Biological and physical science infrastructure programs play a critical role in supporting scientific discovery. Even with their foundational roles in the process of science, frequently, support for these programs is threatened, reduced, or eliminated, placing critical data and information at risk of interruption or loss.
T. M. Crimmins, J. Clark
wiley   +1 more source

Common Sensor Platform Project

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract EarthScope Consortium's Common Sensor Platform (CSP) project is a unified, modular, and scalable design approach for geophysical instrumentation deployments. Developed through cross disciplinary collaboration of National Science Foundation's GAGE and SAGE facilities, the platform outlines core station subsystems that have the flexibility to be
Molly Staats   +14 more
wiley   +1 more source

Baseflow Identification via Explainable AI With Kolmogorov‐Arnold Networks

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Hydrological models often involve constitutive laws that may not be optimal in every application. We propose to replace such laws with the Kolmogorov‐Arnold networks (KANs), a class of neural networks designed to identify symbolic expressions.
Chuyang Liu   +3 more
wiley   +1 more source

Tracing Mantle Sources to Tectono–Magmatic Settings: Machine Learning Classification of Basalts Over the Past 1 Billion Years

open access: yesGeophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract The geochemical heterogeneity of the mantle, recorded by mantle‐derived basalts, offers crucial insights into the evolution of mantle sources. However, recognizing mantle end‐members of basalts is challenging, as traditional trace element proxies yield ambiguous overlapping results in older basalts.
Jilian Jiang   +4 more
wiley   +1 more source

Is the Suez Rift in Its Post‐Rift Phase?

open access: yesGeophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract Failed rifts are widely assumed to enter post‐rift tectonic quiescence after termination of intracontinental rifting, but a comprehensive understanding of their regional morphotectonics is lacking. Our quantitative, rift‐scale geomorphic analyses in the Suez Rift, an archetypal failed rift in Egypt, reveals widespread rifting after presumed ...
David Fernández‐Blanco   +2 more
wiley   +1 more source

Mapping Arsenic Risks in the Ayeyarwady (Irrawaddy) Delta, Myanmar: Implications for Public Health

open access: yesGeoHealth, Volume 9, Issue 11, November 2025.
Abstract The Ayeyarwady Delta in Myanmar, home to an estimated 12 million people, faces widespread arsenic contamination similar to other Asian deltas namely Bengal, Red River, and Mekong. Arsenic here primarily results from reductive dissolution of iron minerals in anoxic conditions driven by organic carbon. Here, we used digital elevation model (DEM)
M. A. Hoque   +8 more
wiley   +1 more source

Parameterization of the Winter Arctic Sea Ice Microwave Emissivity Between 1.4 and 36 GHz, for Large Scale Applications

open access: yesEarth and Space Science, Volume 12, Issue 11, November 2025.
Abstract Modeling sea ice microwave emissivities at large scales presents challenges, due to complex interactions between the microwave signal and the sea ice environment. For the preparation of the Copernicus Imaging Microwave Radiometer mission (CIMR) that focusses on the monitoring of polar regions, a pragmatic parameterization of the sea ice ...
Lise Kilic   +6 more
wiley   +1 more source

TEMPO at Night: Lightning Flashes and On‐Orbit Instrument Performance

open access: yesEarth and Space Science, Volume 12, Issue 11, November 2025.
Abstract The abundant nighttime (twilight) spectra from October 2024 are used for characterization of on‐orbit instrument performance of the Tropospheric Emissions: Monitoring of Pollution (TEMPO, a geostationary imaging spectrometer). We select 250 lightning flashes and measure the flash sizes and flash positions in 6 spectral domains spread across ...
Sergey V. Marchenko   +9 more
wiley   +1 more source

Fast and Spatially Heterogeneous Cooling Rates at Amphibolite‐Facies Conditions in the Lepontine Alps (Switzerland)

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract The Lepontine dome (European Central Alps) is constituted by basement nappes under Alpine regional Barrovian metamorphism, yet the duration and pattern of its post‐peak amphibolite‐facies cooling remain uncertain. We examine garnet‐rim compositional re‐adjustment and employ inverse multicomponent diffusion modeling to estimate apparent cooling
A. Tagliaferri   +3 more
wiley   +1 more source

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