共搜索到8556条信息,每页显示10条信息,共856页。用时:0小时0分0秒562毫秒
Geochemical Characteristics and Significance of Major Elements, Trace Elements and REE in Mineralized Altered Rocks of Large-Scale Tsagaan Suvarga Cu-Mo Porphyry Deposit in Mongolia方维萱,杨社锋,刘正桃,韦星林,张宝琛摘 要:The alteration types of the large-scale Tsagaan Suvarga Cu-Mo porphyry deposit mostly comprise stockwork silicification, argillization, quartz-sericite......
Heidelberg 2016 Abstract: Lower Silurian Longmaxi Shale (SLS) in southeastern Sichuan Basin, China, was analyzed for major and selected trace elements, and their provenance, intensity of palaeoweathering...: trace elements; black shale; provenance; weathering; discriminant diagrams; Sichuan Basin 1 Introduction Black shales cover only a small percentage of continental land area but are economically......
J. Cent. South Univ. (2012) 19: 1741-1752 DOI: 10.1007/s11771-012-1201-4 Sources and control factors of rare earth elements in Late Permian mudstones, Southwest China XIAO Ming-guo(肖明国)1, 2, Zhuang...: The material sources and control factors of rare earth elements (REEs) for 25 borehole bulk samples from the Late Permian Longtan Formation in Mount Huaying (borehole number: ZK10-6), Sichuan Province, South......
; 文献标志码:A 文章编号:1672-7207(2016)02-0703-08 Leaching characteristics of environmentally sensitive trace elements in different types of coal gangue... and leaching times. Based on the contents of environmentally sensitive trace elements(Cd, Cr, Pb, Mn) in different soak solutions measured by graphite furnace atomic absorption spectrometry(GFAAS......
黑龙江省逊克县高松山金矿区岩石地球化学特征尹西君1,连永牢1,潘超1(1.黑龙江省牡丹江市人民武装警察部队黄金第一支队)摘 要:通过对高松山金矿床特征,地球化学特征的分析研究,认为高松山金矿床为浅成低温热液型金矿床,成矿地层是甘河期火山岩,以亚碱性系列之钙碱性高钾火山岩为特征.火山岩稀土元素分析结果表明,该火山岩属轻稀土富集型,铕无明显异常,稀土配分曲线为平缓的右倾.岩石微量元素曲线形态基本相似,表明岩浆具有同源特点.火山岩成因类型为壳-壳幔活动大陆边缘的产物.岩浆演化以分异作用为主,并受一定陆壳混染.
As-cast microstructure of Al-Zn-Mg-Cu-Zr alloy containing trace amount of ScYu Wang,Bai-Qing Xiong,Zhi-Hui Li,Shu-Hui Huang,Kai Wen,Xi-Wu Li,Yong-An Zhang摘 要:trace of Sc in 7000 series aluminum alloys is considered to be an effective way to modify its micros tructure and promote mechanical properties. In order to study the effect of Sc element......
, especially during Mn-oxidizing process. Three normalized REE patterns and SCNA-normalized trace elements spider diagrams of the Mn-bearing sequence rocks and ores in this area reflect their same origin... of the Qixia Period, ore district is then in deep shelf-basin sedimentary setting and the Mn-bearing sequence is deposited. Key words:manganese ore; trace elements; geochemistry; Guichi area; Anhui Province......
, China;2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China;3.Shenyang University, Shenyang, China) 摘要:The present work has investigated the effect of trace elements Cd and Sn.... 关键词:Al-Si-Cu-Mg cast alloy; trace element; Cd addition; microstructure; Age-hardening; [全文内容正在添加中] ......
; 文献标志码:A 文章编号:1672-7207(2021)01-0106-10 Study on co-removal of PM10 and trace elements in coal-fired flue gas enhanced by turbulent agglomeration SHEN Ao, YANG Linjun, WU Xin, DUAN Yufeng... agglomeration was proposed to achieve the synergistic removal of the two kinds of pollutants(PM10 and trace elements). The structure of turbulent device was optimized by numerical simulation study......
Determination of Trace Non Rare Earth Elements in High Purity Rare Earth Oxides by ICP-AES with Microcolumn Preconcentration in a Flow Injection System吉红念,廖振环,江祖成,谢金娥摘 要:DeterminationofTraceNonRareEarthElementsinHighPurityRareEarthOxidesbyICP-AESwithMicrocolumnPreconcentrationinaFlowInjectionSy...关键词:......