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水是人们再熟悉不过的物质了，它不仅以看得见摸得着的形式流动在天地间，也以肉眼无法察觉的状态赋存于岩石和矿物中。无论以何种形式存在，水都对行星的演化具有至关重要的作用。矿物中的水含量随矿物种类的不同而变化迥异，依据矿物中的水含量和赋存形式，可区分出含水矿物和名义无水矿物。相较而言，名义无水矿物（nominally anhydrous minerals, NAMs）是指分子化学式中不含氢元素的矿物，如...
贵州贞丰水银洞金矿矿床成因与成矿模式：来自载金黄铁矿NanoSIMS多元素Mapping及原位微区硫同位素的证据
水银洞金矿 环带黄铁矿 元素Mapping 原位硫同位素 岩浆活动
2018/12/5
贵州贞丰水银洞金矿是中国“滇黔桂”金三角地区最具代表性的超大型卡林型金矿床之一。黄铁矿和毒砂是水银洞金矿的主要载金矿物。背散射电子图像和NanoSIMS高分辨率元素面扫描分析显示载金黄铁矿普遍发育环带结构，不同环带的微量元素种类和含量有显著差别。如增生环带富集Au、Cu、As元素，而核部则相对贫这些元素，富Se。同时，即使在富Au环带中，Au和微量元素也并非均匀分布，环带之中又发育次一级环带。这表...
Quantitative Analysis of Supported Membrane Composition Using the NanoSIMS
lipid bilayer SIMS NanoSIMS mixture gradient compositional analysis
2016/5/24
We have improved methods reported earlier [1] for sample preparation, imaging and quantifying components in supported lipid bilayers using high-resolution secondary ion mass spectrometry performed wit...
Micron-scale d13C determination by NanoSIMS in a Juina diamond with a carbonate inclusion
sub-lithospheric diamonds Juina carbonate lower mantle peridotite eclogite
2017/4/10
Juina diamonds present a wide spectrum of mineral inclusions, covering both peridotitic and eclogitic composition.
Among the most rare inclusions, carbonates are interpreted as an evidence of deep re...
Mn/Cr relative sensitivity factors for synthetic calcium carbonate measured with a NanoSIMS ion microprobe
secondary ion mass spectrometry Mn-Cr chronology relative sensitivity carbonate isotope
2017/8/9
Mn/Cr relative sensitivities for a synthetic calcite and a terrestrial olivine (San Carlos olivine) were measured using spot and rasterized modes with a NanoSIMS ion probe. Counting rates of 43Ca+, 52...