WebNov 23, 2010 · Hardens to form new rock at mid-ocean ridges? Sea- Floor Spreading molten material erupts through the valley that runs along the center of some mid-ocean ridges. … WebA trench is a long, deep depression in the ocean floor. A trough is a gently sloping depression in the ocean floor. An island is a body of land surrounded by water. A ridge is long, narrow elevation of earth. A gap is a steep-sided opening through a mountain ridge. A seamount is an underwater mountain.

What Forms in Divergent Boundaries? Sciencing

WebAs upwelling of magma continues, the plates continue to diverge, a process known as seafloor spreading. Samples collected from the ocean floor show that the age of oceanic crust increases with distance from the spreading … WebThese surveys revealed a series of invisible magnetic “stripes” of normal and reversed polarity in the sea floor, like that shown in the figure below. The patterns reflect the creation and spreading of oceanic crust along the mid … north northamptonshire council e procurement

Seafloor spreading - NOAA Pacific Marine …

WebSeafloor Spreading is the usual process at work at divergent plate boundaries, leading to the creation of new ocean floor. As two tectonic plates slowly separate, molten material rises up from within the mantle to … WebApr 1, 2010 · As the plates move, new sea floor can be created. The plates form three different kinds of boundaries: convergent, divergent, and transform. Convergent boundaries are also called collision boundaries because they are areas where two plates collide. At transform boundaries, the plates slide and grind past one another. Webocean ridges, but over millions of years of seafloor spreading, also creates entire ocean basins. The modern oceans have all been formed by the diver-gence of two plates and the creation of newer oce-anic crust. Examination of a map of the seafloor reveals a crooked, but continuous mountain chain that divides the Atlantic Ocean, known as the Mid- northnorthamptonshire council exchange list