Results 181 to 190 of about 87,639 (320)

The Role of Chlorate‐Driven Oxidative Weathering in Shaping Clay Deposits on Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Oxidized clays and the widespread Al/Si‐over‐Fe/Mg stratigraphy on Mars imply prolonged water‐rock interactions and efficient oxidative weathering despite the largely anoxic conditions of Early Mars when most deposits formed during the climate optimum.
Jiawei Wang, Nicole M. Fernandez
wiley   +1 more source

From coal biodesulfurization to mine-soil remediation: a critical review of microbial sulfur transformation in coal-impacted environments. [PDF]

Front Bioeng Biotechnol
Akimbekov N, Tastambek K, Digel I, Aimagambetov A, Kozhakhmetova M, Altynbay N, Sherelkhan D.   +6 more
europepmc   +1 more source

Abrupt Onset and Persistent Downstream Effects of Acid Rock Drainage on Rivers Across Northwest Arctic Alaska

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract Arctic streams and rivers are increasingly vulnerable to degradation from permafrost thaw that releases toxic elements via natural acid rock drainage. However, the spatial and temporal evolution of acid rock drainage on river chemistry across diverse mineral settings remain poorly constrained.
Taylor G. Evinger, Jonathan A. O’Donnell, Michael P. Carey, Joshua C. Koch, Carson A. Baughman, Kenneth R. Hill, Rebecca J. Frei, Brett A. Poulin   +7 more
wiley   +1 more source

Enrichment of rhenium, uranium and tantalum in jurassic coal from yili basin, xinjiang - evidence from mineralogy and geochemistry. [PDF]

Sci Rep
Bai H, Wang W, Feng S, Wang M, Du Z, Li N, Li E, Ma L, Wang Z.   +8 more
europepmc   +1 more source

Global Sensitivity Analysis of a Reactive Transport Model for Abiotic Trichloroethylene Reduction by Reduced Iron Minerals in Clay‐Rich Aquitards

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Back‐diffusion of trichloroethylene (TCE) from clay‐rich aquitards poses a persistent challenge to groundwater remediation at many contaminated sites. Previous studies have demonstrated that natural attenuation of TCE is controlled by abiotic reactions with reactive ferrous iron; however, the coupled roles of mineral inventory, mineral ...
G. Kumar, H. S. Lim, A. Störiko, A. J. Valocchi, C. J. Werth   +4 more
wiley   +1 more source

An Improved EA-IRMS Method Using V₂O₅-Assisted Combustion for Carbon Isotope Analysis of High-Temperature and High-Pressure Metamorphic Graphite. [PDF]

J Mass Spectrom
Hongwei L, Lianjun F, Junjie X, Lei Z.
europepmc   +1 more source

Inversion of Induced Polarization Parameters From Time‐Domain Electromagnetic Data Using the Debye Decomposition Model

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT Time‐domain electromagnetics (TEM) is a valuable tool for exploring seafloor hydrothermal deposits, which are characterized by variations in resistivity and chargeability. Several surveys using the Waseda integrated seafloor time‐domain electromagnetics (WISTEM) have been conducted.
Masayuki Motoori, Lindsey Heagy, Gosuke Hoshino, Kumpei Nagase, Takumi Sato   +4 more
wiley   +1 more source

Carbon Dioxide Emissions from Acid Mine Drainage Neutralization Are a Major Component of Metal Mining Carbon Footprints. [PDF]

Environ Sci Technol
Kołodziejski S, Stüeken EE, Sánchez López L, Nieto JM, Cánovas CR, Pérez-López R, Bridgestock L.   +6 more
europepmc   +1 more source

Aquifer Microbial Communities Differentially Display Metabolisms Capable of Secondary Effects on Uranium Speciation Across a Former Metal Processing Site

Environmental Microbiology, Volume 28, Issue 9, September 2026.
We performed microbial membership and metabolism measurements across a uranium‐contaminated site's surface and ground waters, then performed analyses relating these metrics to geochemistry at the site. Findings showed variations in the membership, yet mainly similar functional capabilities.
Catherine J. Pettinger, Allondra M. Woods, Raymond H. Johnson, Charles J. Paradis, Erica L.‐W. Majumder   +4 more
wiley   +1 more source

Comments on misuse of iron-57 transmission Mössbauer spectroscopy for surface characterization in Nature Communications 16, 5989 (2025). [PDF]

Nat Commun
Grandjean F, Long GJ.
europepmc   +1 more source