Archived: Interstate Technical Group on Abandoned Underground Mines
An Interactive Forum
Locating and Characterizing Abandoned Mines Using Microgravity: Figure 3
Figure 3. A 2-D geologic model (a) for simulating increasing spatial interval between the two coal seams. After convolution with a 150-Hz Ricker wavelet, the synthetic seismic response of the model (b) highlights the effects of seam separation, creating amplitude anomalies in the No. 5 coal seam reflection