The REE and trace elements contents in the basalt of the west Zhunger Hongguleleng ophiolite have been measured with INAA method. The geochemical characteristics have been analyzed according to the amounts of its rare earth elements

transition metal trace elements and incompatible elements. The Hongguleleng basalt could be di- vided into two groups: one mainly consists of the basalt which is correlative with the formation of the Hongguleleng ophiolite

including some diabase and trachybasalt

while the other mainly consists of the wall rock basalt which is not correlative with the formation of the Hongguleleng ophiolite. It is significant to research this two types of basalt for studying their formation class

origin characteristics

relative dependence

evolvement procedure and the rule of coming into mine.