نتایج جستجو برای: zn deposit

تعداد نتایج: 55806  

Journal: :Computers & Geosciences 2010
Deyi Xu Qiuming Cheng Zhijing Wang

Banding textures are commonly observed in mineral crystals for example in sphalerites in Mississippi Valley-type deposit. Cellular Nonlinear Network (CNN) has been developed in the literature for characterizing complexity especially for reaction-diffusion dynamic systems. These include models describing periodic precipitation incorporating nucleation and banding pattern formation in minerals. B...

Journal: :Coatings 2021

In the present work, solution precursor plasma spray (SPPS) process was used to deposit zinc oxide (ZnO) coatings on wood surfaces using nitrate as improve hydrophobicity and color stability of European beech under exposure ultraviolet (UV) light. The surface morphology topography samples were characterized by scanning electron microscopy (SEM) atomic force (AFM). formation ZnO detected with he...

2005
Nava Ashraf Dean Karlan Tomoko Harigaya

Informal lending and savings institutions exist around the world, and often include regular door-to-door deposit collection of cash. Some banks have adopted similar services in order to expand access to banking services in areas that lack physical branches. Using a randomized control trial, we investigate determinants of participation in a deposit collection service and evaluate the impact of o...

Journal: :Frontiers in Earth Science 2023

Trace element (TE) analysis of pyrite via LA-ICP-MS can be used to reconstruct the conditions formation in complex mineral systems. The Carpentaria province northern Australia is host some world’s highest value Zn-Pb (+Ag, Cu) deposits. genesis many these deposits controversial, with competing models single-vs. multi-stage ore formation. In this study, data paragenetically constrained from Geor...

Alipour, , Hosaini, , Sanedoost, ,

Agh-Darreh copper deposit is located in Tarom area, about 25 km north of Abhar city. Main alterations identified in this region include silicic, argillic, and propylitic. Andesite and silica veins host sulfide mineralization. Chalcopyrite and pyrite are the main hypogene minerals accompanied by gold and silver in siliceous veins, with smaller amounts of galena. Malachite, azurite and goethite a...

جعفری, محمد , شفیعی, بهنام , شمعانیان, غلامحسین , عظیم محسنی, مجید, نوری اصل, فرزانه ,

The Argash antimony ore deposit is located at south of Neyshabour and the eastern part of the Sabzevar zone. This deposit occurs within a sequence of Eocene-Oligocene volcanic-intrusion rocks. The mineralization occurs as open space filling, taking place as irregular veins, veinlets and hydrothermal breccias. The mineralogy of the veins is comparatively simple. The primary antimony-bearing mine...

Boomeri, Mohammad, Zahedi, Azam,

Khut Copper deposit, located in west of Yazd, is one of the most important skarn deposits in Taft mining area that situated in the middle part of the Urumieh-Dokhtar magmatic belt. Intrusion of Khut granodioritic stock into carbonate component of the Nayband Formation has led to the formation of Cu skarn deposit and different skarn zones. Mass changes has led to mineralogical changes in the dif...

Journal: :journal of tethys 0

a well-known algorithm of clustering is k-means by which the data are divided into k classes based upon a distance criterion. in the present research, by using k-means method for classifying data derived from exploration boreholes in the parkam deposit, the optimum k has been calculated and then the data have been clustered and the relative geochemical behavioral characteristics analyzed. the c...

Journal: :Journal of Biomedicine and Biotechnology 2007
Masanori Ando Chunliang Li Ping Yang Norio Murase

ZnSe-based nanocrystals (ca. 4-5 nm in diameter) emitting in blue region (ca. 445 nm) were incorporated in spherical small silica particles (20-40 nm in diameter) by a reverse micelle method. During the preparation, alkaline solution was used to deposit the hydrolyzed alkoxide on the surface of nanocrystals. It was crucially important for this solution to include Zn(2+) ions and surfactant mole...

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