Results 131 to 140 of about 4,288 (305)

Stratigraphic control and distal hydrothermal footprint of the Ursa Zn-Pb-Ag prospect, Selwyn Basin, Yukon Territory, Canada

open access: yes
Includes bibliographical references.2024 Spring.Clastic-dominated deposits are an important source of Zn, Pb, and Ag worldwide. While it is widely accepted that the hydrothermal alteration halos around these deposits can be laterally extensive, the ...
Engström, Fredrik
core  

Alteration and mineral paragenesis of the McArthur River and Fox Lake uranium deposits, Athabasca Basin: a new model for the formation of unconformity-related uranium deposits

open access: yes, 2019
Includes bibliographical references.2019 Summer.The McArthur River uranium mine in the Athabasca Basin, Canada, hosts the largest high-grade uranium deposit in the world, accounting for 12% of global uranium production in 2015.
DeDecker, John
core  

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

open access: yesGeological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia   +4 more
wiley   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

open access: yesGeological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Geology of the Enterprise hydrothermal nickel deposit, eastern Kabompo Dome, North-Western Province, Zambia

open access: yes, 2013
2013 Fall.Includes color illustrations, color maps.Includes bibliographical references (pages 105-117).The Enterprise nickel deposit (41 Mt at 1.07% Ni) is located within the western Domes region in the North-Western Province of Zambia.
Capistrant, Patricia L.
core  

Ecology of Sulfur Cycling in Flooded Strip Mines

open access: yes, 2013
Habitat restoration efforts in reclaimed coal mining areas have included the flooding of shallow strip mines, creating patches of wetland with special chemical characteristics, like Lost Lake in Southern Illinois.
Wham, Breanna Michelle
core  

The relationship between cellular protein content and selenium accumulation in freshwater microalgae

open access: yesIntegrated Environmental Assessment and Management, EarlyView.
Abstract Variability in the bioconcentration of selenium (Se) by primary producers at the base of the food web results in uncertainty in predictions of bioaccumulation and ecological risk to higher trophic level organisms. Water chemistry, speciation of Se, and periphyton community composition have all been suggested as factors that contribute to ...
Courtney Bogstie   +3 more
wiley   +1 more source

Influence of additive elements on the activity coefficient of sulfur in liquid lead at 600°C, The

open access: yes, 1965
Includes bibliographical references (pages 109-111)
Twidwell, Larry Gene
core  

Facet‐engineered BiSI nanorods for intelligent distinguishing detection of NO2/H2S mixed gas

open access: yesInfoMat, EarlyView.
Mixed toxic gases such as NO2 and H2S can threaten safety in coal mines and industrial settings, but it is still difficult to monitor them accurately with a simple sensor. In this work, we improved a BiSI‐based room‐temperature gas sensor through crystal facet engineering and combined it with machine learning so that one sensor could distinguish mixed ...
Zhenze Zhou   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy