According to the characteristics of trace elements and isotope, the source of the basalt is similar to the OIB source.
微量元素和同位素特征显示，玄武岩起源于与洋岛玄武岩源区相似的富集地幔源。
2
It is tentatively suggested that the lower lithosphere MORB-OIB mantle is recently accreted since the paleo-lithosphere mantle was replaced by the abnormal asthenosphere.
我们初步认为，该区深部岩石圈MORB - OIB地幔可能是软流圈置换古岩石圈地幔而增生形成的。
3
All the eclogite samples with the feature of both E-MORB and OIB indicate a plume-ridge interaction or hotspot-ridge interaction during the evolution process of Paleo-Tethys.