The amphibolite xenoliths were from the upper part of lower crust and the lower part of middle crust, bring up to the shallow area of crust .
角闪岩包体来源于下地壳上部-中地壳下部位置，被上升岩浆带至地壳浅部。
Under the influences of mantle and lower crust, the low-velocity layers alternating with high conductive layers distribution occurred in middle crust.
地幔物质的上隆及上侵作用使上地壳裂解断陷，而中地壳在地幔、下地壳的影响下形成相间展布的低速—高导层。
The middle crust and the lower crust is in the ductile field.
上地壳表现为脆性变形，中、下地壳为韧性的流动变形。
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