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Comparative Study of Gacun and Youre Silver–Lead–Zinc–Copper Deposits in Sichuan, SW China, and their Mineralization Significance
ore-bearing horizon structure of ore-bearing belt VMS deposit Gacun–Youre ore district
2018/4/10
The large Gacun silver–lead–zinc–copper deposit in Sichuan Province is one of the largest volcanogenic massive sulfide (VMS) deposits in China. The deposit consists of western and central ore bodies, ...
The effect of pH on the uptake of zinc and cadmium in marine phytoplankton: Possible role of weak complexes
zinc cadmium weak complexes
2014/4/4
In natural samples from the New Jersey coast and the Gulf of Alaska, zinc (Zn) and cadmium (Cd) uptake
rates by phytoplankton decreased on average about 30% as pH was decreased from 8.5 to 7.9 or 7.7...
Lead and Sulfur Isotope Studies of the Koru (Çanakkale, Turkey) Lead-Zinc Deposits
Koru Ç anakkale lead zinc sulfur isotope
2009/7/7
Koru (Çanakkale) barite-bearing lead-zinc deposits are typical examples of the lead-zinc deposits occurring in the Tertiary volcanic rocks which crop out in the Biga Peninsula. Volcanic rocks a...
Copper, zinc and lead impact in SW Iberian shelf sediments: An assessment of recent historical changes in Guadiana river basin
SW Iberian Continental Shelf sediment core mining exploitation geochronology heavy metal enrichment factor
2017/8/10
n the present study, lithogenic/biogenic and anthropogenic elements were determined in five sediment cores collected at the SW Iberian Continental Shelf in order to investigate the spatial and tempora...
Dehydration, Diffusion and Entrapment of Zinc in Bentonite
Bentonite Entrapment Interaction Micropore Diffusion Speciation Zinc
2011/12/8
Abstract: Interactions with bentonite are important in the chemical speciation and fate of heavy metals in soils and other ecosystems. The interactions of Zn with bentonite were studied using X-ray di...
The crystal structure of namuwite, a mineral with ZN in tetrahedral octahedral coordination, and its relationship to the synthetic basic zinc sulfates
The crystal structure of namuwite ZN coordination relationship synthetic basic zinc sulfates
2012/4/5
The crystal structure of namuwite, (Zn,Cu)4S04(OHk4H20, trigonal, a = 8.331(6), C = 10.54(1) A,V=634(1) A3,Pj, Z = 2, has been solved by direct methods and refined to an R index of 7.9% using MoKa X-r...
Effect of pH on Zinc Adsorption and Solubility in Suspensions of Different Clays and Soils
Zinc Adsorption Solubility pH Clays Soils
2011/11/14
Zinc solubility in clay and soil suspensions was controlled by chemi-sorption at pH 4.5 - 7.0. Thesolubility in clay mineral suspensions was in the order
palygorskite < montmorillonite < kaolitlite a...
Selective Adsorption of Zinc on Halloysite
Adsorption Cation exchange Halloysite Selectivity Zinc
2012/2/9
Zn- and Ca-adsorption equilibria of five Ca-saturated halloysite samples were measured at equilibrium Zn concentrations up to 10−2 M in 10−4 to 10−2 M CaCl2. The results were interpr...
Reactions of Zinc with Acid and Base Saturated Dickites
Adsorption Dickite Exchange Sodium Zinc
2012/2/10
The effect of pH, time and temperature on the interaction of zinc with acid and base saturated dickites has been investigated. Increase in pH resulted in an increase in adsorption of zinc in the highe...