In this work, we evaluated the spatial distribution characteristics of EAFZ geothermal fluids after the earthquake, discussed the water-rock reaction process of EAFZ in detail, estimated the thermal reservoir temperature and circulation depth of geothermal water by using cationic empirical thermometers and SiO₂ thermometers, and revealed the possibility that shallow sedimentary minerals can be used as earthquake early warning indicators.

When first introduced together with the depth profile technique to determine the surface exposure age, the linear inversion approach has suffered with the drawbacks of not incorporating erosion and muons into calculation. In this paper, we increase the accuracy and applicability of the linear inversion approach by fully considering surface erosion, muogenic production, and radioactive decay, while maintaining its advantage of being straightforward to determine an exposure age.

Abrupt changes in tectonic uplift rates induce sharp changes in river profile, called knickpoints. When river erosion depends non-linearly on slope, we develop an analytic model for knickpoint velocity and find the condition of knickpoint merging. Then we develop analytic models that represent the two-directional link between tectonic changes and river profile evolution. The derivation provides new understanding on the links between tectonic changes and river profile evolution.