What do the rocks say? lab edition | MIT Department of ...
2021-7-27 · Using ultrasound sensors, MIT researchers eavesdrop on the internal sounds of squishing rocks to reveal how rocks fracture and flow within the depths of the Earth. Deep inside the Earth, the rocks are singing. The intense heat and crushing pressure below the Earth''s surface causes rocks to deform – to crack, flow, fracture, and melt. In the process, they emit acoustic waves,