Based on the petrological , petrochemical and geochemical analyses about these rocks , it is concluded in this paper that the xenoliths were originated from the upper mantle , and comprised of both primitive pyrolite and the infusible solid residual of the upper pyrolite while the basaltic magma was melted out of it , which were brought up to the earth ' s surface via o1carnc eruption 根据其岩石学、岩石化学及地球化学特征分析，包体来源于上地幔，其成因既有原始地幔岩，亦有上地幔岩经部分熔融出玄武岩浆后的难熔固相残留物，被火山喷发携带至地表。
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