surface waves

Thermo‐chemical modification of the Upper Mantle beneath the Northern Malawi Rift Constrained from Shear Velocity Imaging

To investigate the controls on continental rifting in the Western Branch of the East Africa Rift System, we conduct shear‐velocity imaging of the crust and uppermost mantle beneath the weakly extended Malawi Rift and the Rungwe Volcanic Province …

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 …

High-Resolution Constraints on Pacific Upper Mantle Petrofabric Inferred From Surface-Wave Anisotropy

Lithospheric seismic anisotropy illuminates mid-ocean ridge dynamics and the thermal evolution of oceanic plates. We utilize short-period (5–7.5 s) ambient-noise surface waves and 15- to 150-s Rayleigh waves measured across the NoMelt ocean-bottom …