Figure 2
The borehole acoustic waveforms in the gas hydrate-bearing sediment. The center frequency of the source is (a) 6Â kHz; (b) 10Â kHz.
Figure 2 | Scientific Reports
The borehole acoustic waveforms in the gas hydrate-bearing sediment. The center frequency of the source is (a) 6Â kHz; (b) 10Â kHz.
