中源地震脱水脆变机制的岩石学研究进展

夏阳, 张立飞^*

The Advance of Petrologic Mechanism of Dehydration Embrittlement in Intermediate-depth Earthquakes

Xia Yang, Zhang Lifei

图2 俯冲带受流体压力控制下的脱水模型理论框架从阶段A到阶段B, 流体压力逐渐上升, 直到阶段C产生水压裂隙。流体通过这些裂隙联通的网络向上运移进入地幔楔, 促进了地幔楔的部分熔融产生弧岩浆（据文献[ 18 ]改绘）
Fig. 2 Conceptual framework for a fluid pressure-controlled dehydration model in subduction zones From system A to B, the fluid pressure is increasing until it is sufficient to initiate a hydrofracture during system C. The fluid will escape the system through the dehydration-induced connected network and flow into the overlying lithosphere to promote the generation of arc magmatism after reference [ 18 ]