Before you even think about raising the walls of a new backyard shed, you need a solid foundation. Learn how to pour a ...

ANN ARBOR—As anyone with a smattering of geological knowledge knows, Earth’s crust is made up of plates that creep over the planet’s surface at a rate of several inches per year. But why do they move ...

Proposed evolution of slab pull from the detached lithospheric fragments. At the beginning, both fast-velocity anomalies 1 and 2 contributed to the slab pull, as F1+F2 (hexagon); then F1 was detached, ...