Fluid released during the high pressure and ultrahigh pressure metamorphism plays an important role in the evolution of subducted slab and may connect directly with igneous activity in island arcs.
在高压超高压变质作用过程中所释放的流体对俯冲板块的演化起着重要作用，与岛弧岩浆活动有着直接联系。
The activity of igneous rocks mainly concentrates in Neogene and Quaternary.
火成岩活动主要集中在晚第三纪和第四纪。
Such changes can occur through the activity of fluids in the Earth and movement of igneous bodies or regional tectonic activity.
这些变化可以通过地球内的流体的活动，火成岩体的运动或区域性构造活动而发生。
The authors also discuss the regional tectonomagmatism activity from igneous petrologic angles.
首次从岩石学的角度探讨了区域构造岩浆活动史。
The Tertiary igneous rocks broadly distribute in this depression, since of magmatic activity was very frequent during the Xishan Epoch.
在第三纪的喜山期岩浆活动较强烈，因此，坳陷内第三纪火成岩分布广泛。
The Tertiary igneous rocks broadly distribute in this depression, since of magmatic activity was very frequent during the Xishan Epoch.
在第三纪的喜山期岩浆活动较强烈，因此，坳陷内第三纪火成岩分布广泛。
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