对具有不同岩石学和地球化学特征的幔源包体进行了酸淋滤实验 ,以便能直接地获得橄榄岩粒间组分的微量元素特征 .结果表明 ,粒间组分富集LREE ,且有强烈的Ta负异常 .粒间组分中REE总量的高低以及Rb ,Ba和Nb负异常的存在与否则与橄榄岩经历的地幔交代作用的性质密切相关 .推测粒间组分可能代表了地幔交代流体的残余体 . Acid leaching experiments were carried out on mantle-derived inclusions with different petrological and geochemical characteristics in order to obtain trace element characteristics of intergranular components of peridotite directly. The results show that the intergranular components are enriched in LREE and have Strong negative anomaly Ta.The intergranular REE abundance and the presence of negative anomalies of Rb, Ba and Nb are closely related to the nature of mantle metasomatism experienced by peridotite.It is suggested that the intergranular component may represent the mantle Confluence of fluid remnants.