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由尖晶石相和石榴石相二辉橄榄岩包体所建立的浙江省上地幔古地温线高于大洋地温线 ,与徐义刚等建立的中国东部地温线以及澳大利亚东南部的地温线较为接近 .由该地温线确定的该区壳幔边界为 34km ,软流圈与岩石圈边界大致在75km .上述结果与该区地球物理资料基本一致 .包体的流变特征研究表明 ,该区的包体至少经历了两期以上的变形事件 .前期可能与上地幔底辟有关 ,后期则可能与上地幔的剪切作用有关
The paleogeomorphic temperature line of the upper mantle in Zhejiang Province, which was established by the spinel and garnet lherzolite inclusions, is higher than that of the oceanic geothermal line, which is similar to the geothermal line in eastern China and the geothermal line in southeastern Australia established by Xu et al. The boundary between crust and mantle in this area is 34km and the boundary between asthenosphere and lithosphere is about 75km, which is determined by the geothermal line.The above results are basically consistent with the geophysical data in this area.The study on the rheological characteristics of the inclusions shows that the inclusions Experienced at least two deformation events, which may be related to the upper mantle diapirs and later may be related to the shear effect of the upper mantle