It occurs at the equivalence point of confining pressure with pore pressure, and it is induced by the motion of S-waves in confining rock layers, such as during the destruction of Turnagain Arm, Alaska during the Good Friday earthquake of 1963.
The "en" model of Trifunac models this process via Fourier amplitude spectra of velocity applied to extra-accelerographic frequencies to obtain a critical overburden pressure, while the Liang and Kusky equations predict the energy of its onset's dependence on a random loading rate. Ancient deposits exhibiting it are characterized by the presence of load structures such as pseudonodules or by sand volcanoes. It occurs at the equivalence point of confining pressure with pore pressure, and it is induced by the motion of S-waves in confining rock layers, such as during the destruction of Turnagain Arm, Alaska during the Good Friday earthquake of 1963. FTP, name this geologic process in which a loss of grain coherence causes sediment to flow, the basis of quicksand.
The "en" model of Trifunac models this process via Fourier amplitude spectra of velocity applied to extra-accelerographic frequencies to obtain a critical overburden pressure, while the Liang and Kusky equations predict the energy of its onset's dependence on a random loading rate.
liquefaction