The Study of Trace Element Using the Proton-Microprobe for Suoluosu Mantle Peridotite, Sandong Province
山东梭罗树地幔橄榄岩微量元素的质子探针研究

Minerals in mantle peridotite from the Soulousu area, Sandong Province have been analysed on proton-microprobe for Ni, Zn, Ga, Rb, Sr, Zr, Y. The result shows that these elements are contained in specific acceptor minerals, such as olivine contains the highest Ni, orthopyoxene contains median Ni, and both they contains few Zn (Zn and Ni are compatible elements), while clinopyroxene has high incompatible elements (Sr, Zr, Y), spinel has high Ni, Zn and Ga, but garnet has fewest these elements. The inhomogeneous distribution of these elements is observed obviously in several hundred micron area of the minerals. This may result from the infilteration of fluids during mantle metasomatism and may be related to tiny inclusions enriched in specific elements.