attenuation

Shear Attenuation and Anelastic Mechanisms in the Central Pacific Upper Mantle

We determine the mantle attenuation (1/Qμ) structure beneath 70 Myr seafloor in the central Pacific. We use long-period (33-100 sec) Rayleigh waves recorded by the NoMelt array of broadband ocean-bottom seismometers. After the removal of tilt and …