Localized Enhancement of Infrared Radiation Temperature of Rock Compressively Sheared to Fracturing Sliding: Features and Significance

Previous experiments indicated that infrared radiation temperature (IRT) was applied in monitoring rock stress or mass fracturing, and abnormal IRT phenomena preceding failure tectonic earthquakes were frequently reported. However, the characteristics of changing with fracturing frictional sliding are not clear, which leaves much uncertainties location pattern identification stress-produced IRT. In this study, we investigated carefully localized enhancement compressively sheared to (named as CSFS) marble granite specimens. Infrared thermogram visible photos synchronously observed process CSFS experiment. We revealed determined by local locking, sliding, relations between K cv shear force almost linear wave length 3.7–4.8 ?m. CSFS, detected ?IRT resulted from thermoelastic effect is 0.418 , while id="m2">?IRT friction reaches up 10.372 about 25 times former. This study potential values for detection engineering scale satellite remote sensing seismogenic regional scale.