【摘要】 采用同步辐射X射线荧光微探针无损分析技术 ,对吉林龙岗火山群地幔捕掳体中的斜方辉石矿物及其熔融包裹体进行了测试 ,并用美国玻璃标样 (NIST 6 12 )标定出K ,Sc ,Ti,Cr ,Mn ,Fe ,Co ,Ni,Cu ,Zn ,Ga ,Sr,Y等 13种元素的含量 .其中 ,斜方辉石中的Cr ,Mn ,Fe ,Ni等元素含量与波长色散电子探针分析结果相对误差分别为 15 % ,5 % ,7% ,8% .包裹体中过渡族元素球粒陨石标准化曲线型式与中子活化全岩分析结果相似 ,反映原始岩浆在上升过程中经历了部分熔融或分离作用更多还原

【Abstract】 The enstenite and its melt inclusions picked up from mantle xenoliths at Longgang volcanoes in Jilin province are measured by synchrotron radiation X-ray microprobe techniques. Some element contents, such as K, Sc, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Sr, Y are calibrated by NIST SRM 612. The relative deviations of element contents analyzed in enstenit between X-ray fluorescence microprobe and wavelength dispersive electron beam microprobe are 15%, 5%, 7% and 8% for Cr, Mn, Fe, Ni, respectively. Chondrite normalized transition metal elements distribution pattern of inclusion is similar to that of whole rock analyzed by INAA, which implies that primitive magma experienced partial melting or segregation during ascending.更多还原