本文认为，大洋岩石圈拆沉和大陆下地壳拆沉是不一样的：(1)拆沉的物质不同。
The author thinks that the ocean lithosphere delamination (OLD) is different from the continental lower crustal delamination (CLCD) in the paper: (1) the different delamination material.
研究表明，花岗岩属A_2型，形成于造山晚期相对稳定的拉张环境，是在岩石圈拆沉过程中侵位的。
The research results indicate that the studied granites belong to A2-type which formed in late oro-genic extension environment and intruded in the process of the lithospheric delamination.
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