... Cold Activity Drops Extinctions0.7 0.7 0.71.9 1.9 1.92.0 2.010 1140 37 –20 37 70 70–60 65 130 132 –125 137 160 165–140 1 73 North America, the terranes are elongated bodies due to the slicing ... controlledFigure 43 Radaraltimeter data from theGeodynamicExperimental OceanSatellite (GEOS -3) andSeasat produced this mapof the ocean floor. (1)Mid-Atlantic Ridge, (2)Mendocino Fracture Zone, (3) Hawaiian ... movements that modify their overall dimensions.Figure 61 Radiolarianswere marine planktonicprotozoans.84 Marine Geology descending plate. However, just where all the fluid goes has remained...