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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...