构造剪切作用中矿物纳米化及其热效应研究

During quick shearing process, the minerals suffer ultracataclasis and comminution,.Cataclastic rocks and pseudotachylytes are formed. Under differential stress condition, small.minerals will transfer to amorphous substance with short-range-order, different from the disorder.texture of melting-origin pseudotachylite. Nano-effect vitrifying plays a major role in formingpseudotachylyte with non-melting-origin.

本项目引入纳米科学的理论和方法，以构造剪切作用中矿物纳米化及其热效应为目标，综合运用原子力显微镜、同步辐射等多种先进测试手段进行跨学科深入研究；制备典型造岩矿物不同粒度的纳米微粒，深入研究纳米矿物和玻璃基质的结构，探讨矿物在纳米尺度下的热学性质和剪切过程中熔融作用的微观机理，对确定地震过程的热动力学参数等有重要意义。