Results 61 to 70 of about 8,628 (232)

The source processes affect the initial chalcophile element fertility of arc magmas

open access: yesCommunications Earth & Environment
The chalcophile element fertility of arc magmas that modulates the enrichment of gold in porphyry copper deposits is negatively correlated with magma differentiation depth, which was attributed to sulfide saturation during magmatic evolution.
Yanjun Wang   +8 more
doaj   +1 more source

A Structured Review of Selenium Pollution in Global Aquatic Environments: Sources, Levels, and Co‐Pollutants

open access: yesEnvironmental Quality Management, Volume 35, Issue 4, Summer 2026.
ABSTRACT Despite its nutritional and industrial significance, selenium (Se) is considered a pollutant in aquatic environments owing to its toxicity at elevated concentrations, which potentially cause environmental degradation and adverse health effects in humans and local biota.
Jorge Enrique Ascencio‐Damian   +2 more
wiley   +1 more source

Eastward Growth of the Tibetan Plateau Linked to Cenozoic Orogenic Wedge Deformation and Fluctuating Melt Sources

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The India–Asia collision continuously loads the Tibetan Plateau (TP), driving its Cenozoic eastward growth. This process has caused extensive crustal deformation and a diverse magmatic response. Here, we report on newly identified 35−6.5 Ma granitoids from Kangding area in southeastern (SE) TP.
Quan Ou   +8 more
wiley   +1 more source

The History of Uranium Mining and the Navajo People

open access: yesAmerican Journal of Public Health, 2002
From World War II until 1971, the government was the sole purchaser of uranium ore in the United States. Uranium mining occurred mostly in the southwestern United States and drew many Native Americans and others into work in the mines and mills. Despite a long and well-developed understanding, based on the European experience earlier in the century ...
Doug, Brugge, Rob, Goble
openaire   +3 more sources

Records of the Movement Against Uranium Mining

open access: yes, 1976
This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.
Movement Against Uranium Mining
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James Ternahan, Continental Uranium, Inc.

open access: yes, 2022
Donor: Colorado Mining Association.A portrait, James Ternahan.Caption reads: "James C. Ternahan, Jr., Continental Uranium, Inc., Chief Metallurgist.

core  

Influence of Copper and Copper Oxides on Adsorption and Diffusion Behavior of Se(Ⅳ/Ⅵ) in Tamusu Clayrock

open access: yesHe huaxue yu fangshe huaxue
The Tamusu clayrock of Inner Mongolia is a significant candidate host rock for geological disposal of high-level radioactive waste in China. 79Se(Ⅳ) and 79Se(Ⅵ) are key concerns in the long-term safety assessment of repositories due to their relatively ...
Yu-zhen SUN   +5 more
doaj   +1 more source

Finite Element Modelling of Synthetic Normal Resistivity Logging Tool: Insights Into Vein Parameters, Borehole Fluids and Electrode Configuration

open access: yesGeophysical Prospecting, Volume 74, Issue 5, June 2026.
ABSTRACT Borehole resistivity logging can play an important role in subsurface exploration by enhancing the accuracy of surface data inversion models. However, its application in the mining industry remains limited due to challenges posed by complex geological formations, particularly in vein‐hosted deposits such as orogenic gold and porphyry copper ...
Yasaman Nemati   +3 more
wiley   +1 more source

Iran's Forward Defense in Sub‐Saharan Africa

open access: yesMiddle East Policy, Volume 33, Issue 2, Page 57-71, Summer 2026.
Abstract This article examines Iran's security and defense initiatives in sub‐Saharan Africa between 1990 and 2024 and how they reflect the extraterritorial application of the regime's forward defense doctrine. In response to the long‐term erosion of its homeland defense capabilities since the Iran‐Iraq War of the 1980s—driven by infrastructure ...
Ariel Limanya Limbu, Ronen A. Cohen
wiley   +1 more source

Mineral Dusts and Radon in Uranium Mines [PDF]

open access: yesScience, 1991
The Environmental Protection Agency (EPA) continues to assert that radon is a major cause of lung cancer in this country. EPA is fostering a radon program that could entail huge financial and emotional costs while yielding negligible benefits to public health.
openaire   +2 more sources

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