理学 >>> 数学 信息科学与系统科学 物理学 化学 天文学 地球科学总论 大气科学 地球物理学 地理学 地质学 水文学 海洋科学 生物学 科学技术史
搜索结果: 1-7 共查到理学 electron microprobe相关记录7条 . 查询时间(0.078 秒)
Forestimationsof P-T conditionsofigneousandmetamorphicrocks,Fe incoexisting mineralsiseitherassumedtobezerooriscalculatedfromelectronmicroprobeanalyses (EMPA)baseduponstoichiometryandchargebalance.G...
Thisworkpresentsaproceduredevelopedfortraceelementanalysisusingtheelectron microprobe(EMP).Themethodisdemonstratedbyanalysisofsevenglassesprepared fromreferencerockpowders,withcompositionsofgranite,...
Ahigh-precision electron microprobe(EMP) technique hasbeendeveloped that is ca-pableofanalyzing major,minor,and trace element abundances (Si,Ti,AI,Fe,Mn,Mg, Ca,Na,K,Cl)in hydrous rhyolitic glasses.Th...
The time-dependent loss of NaKa X-ray intensity during electron-beam irradiation of hydrous alkali alumino silicate glasses is apparently moresignificant during the initial few seconds ofbeam exposure...
AnalysisofCain olivine grainscloseto boundaries withCa-richphases is inherently problematic becauseofthe effectsofsecondary X-rayfluorescenceofCafrom the adjoining Ca-richphase. Commercial fluorescenc...
Fifteen samples of palygorskite, from widespread localities,have been investigated. The ubiquitous impurities and exhemely fine grain+ize pose serious problems in many analytical procedures. The elect...
Electron microprobe studies of kaolinite indicate that most of the Fe is evenly distributed throughout the kaolinite and must either be in the structure or occur as very small particles adsorbed on th...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...