EntityQ2008968· pop 12· linked from 35 articlesseismic refractionSign in to savedeviation of seismic waves by rock or soil layers to characterize subsurface geologic structuresConnectionssecondary waveEntityrefractionEntityseismometerEntityseismic waveEntitySnell's lawEntityMonte Carlo methodEntitygenetic algorithmEntitylongitudinal waveEntitygeotechnical engineeringEntitytomographyEntitysledgehammerEntitystructural geologyEntityengineering geologyEntitybedrockEntitygeophoneEntitytailingsEntityprimary waveEntityreflection seismologyEntityexploration geophysicsEntityCategoriesExploration geophysicsGeophysicsSeismology