CLC: Meteorite from Ceres Std: the Earth's crust is made up of plates that move slowly, converging, diverging, or slipping past each other. JMF: Shock Dynamics CRD: Expanding Earth: the continents used to cover the whole Earth, but the Earth grew, and the continents separated. AAM: Surge Tectonics: Earth has cooled and shrunk greatly and densification has caused continental lands to sink and magma surge channels have caused orogenesis. JMH: Whole-Earth Decompression Dynamics