Results 61 to 70 of about 8,628 (232)
The source processes affect the initial chalcophile element fertility of arc magmas
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
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
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
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
This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.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.
Donor: Colorado Mining Association.A portrait, James Ternahan.Caption reads: "James C. Ternahan, Jr., Continental Uranium, Inc., Chief Metallurgist.
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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
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
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]
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

