The company has erected warning signs below the crag and installed tell-tales which detect rock movement.
This phenomenon has required the development of fractured shaft lining repairing technology and a method for detecting rock strata settlement.
While ridges and furrows on the surface of rock glaciers are probably the most characteristic morphological features of this expression of creeping mountain permafrost, this is the first study that examines the utility of texture filters in detecting rock glacier flow structures.
This work is based on the recognition that the magnetic lineations detected in rocks on the ocean floor were formed when basaltic magma had been extruded from the oceanic ridges.
It is, however, still difficult to accurately detect coal rock bursts due to the complex mechanism of AE propagation underground.
The Acoustic Emission (AE) technique is an important nondestructive testing method used to detect coal rock burst hazards in coal mine strata to ensure the safety of the lives of miners.
X-ray computed tomography is often used to detect the rock matrix, but it is not sensitive to fluid changes (Vinegar 1986; de Argandona et al. 1999; Liu 2013).
NASA's Mars Reconnaissance Orbiter has detected clay in rock of the crater rim exposed by the far larger impact explosion that created Endeavour.
Genes coding for denitrifying processes (e.g. narG, nirK, norB) were detected in both rock samples (Table S1).
Further, genes coding for cytochromes from, for example, Geobacter sulfurreducens, a metal- and sulfur-reducing Bacteria isolated from a hydrocarbon contaminated environment [43] were detected in both rock samples (Table S1).
