Present-day Kinematics of the East African Rift Abstract

abstract

  • The kinematics of the East African Rift (EAR) is the least constrained of all major plate boundaries. This work shows that present-day data (a GPS + DORIS geodetic solution and earthquake slip vectors) are consistent with 3.2 Myr average spreading rates and transform fault azimuths along the Southwest Indian Ridge and support a kinematic model that includes three subplates (Victoria, Rovuma, and Lwandle) embedded within the EAR. Continental rifting in the EAR appears to involve localized strain along narrow rift structures that isolate large lithospheric blocks.

authors

publication date

  • 2008

presented at event