https://padlet.com/305158/5oft91yl2c14 N/A en-us 2018-03-29 17:16:09 UTC 2023-03-05 22:05:36 UTC hello@padlet.com 305158 https://padlet.com/305158/5oft91yl2c14/wish/247338292 A theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.]]> 2018-03-29 17:20:28 UTC https://padlet.com/305158/5oft91yl2c14/wish/247338292 305158 https://padlet.com/305158/5oft91yl2c14/wish/247338870 The theory that the earth's continents move gradually over the surface of the planet on a substratum of magma. The present-day configuration of the continents is thought to be the result of the fragmentation of a single landmass, Pangaea, that existed 200 million years ago.]]> 2018-03-29 17:22:13 UTC https://padlet.com/305158/5oft91yl2c14/wish/247338870 305158 https://padlet.com/305158/5oft91yl2c14/wish/247340244 Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced or sinks due to gravity into the mantle. Regions where this process occurs are known as subduction zones. Rates of subduction are typically in centimeters per year, with the average rate of convergence being approximately two to eight centimeters per year along most plate boundaries.]]> 2018-03-29 17:25:19 UTC https://padlet.com/305158/5oft91yl2c14/wish/247340244 305158 https://padlet.com/305158/5oft91yl2c14/wish/247341789 The Mid-Atlantic Ridge is a mid-ocean ridge, a divergent tectonic plate or constructive plate boundary located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world.]]> 2018-03-29 17:28:59 UTC https://padlet.com/305158/5oft91yl2c14/wish/247341789 305158 https://padlet.com/305158/5oft91yl2c14/wish/247343091 The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. In a 40,000 km horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and plate movements.]]> 2018-03-29 17:32:16 UTC https://padlet.com/305158/5oft91yl2c14/wish/247343091 305158 https://padlet.com/305158/5oft91yl2c14/wish/247343944 Convergent plate boundary in Science. convergent plate boundary. A tectonic boundary where two plates are moving toward each other. If the two plates are of equal density, they usually push up against each other, forming a mountain chain.]]> 2018-03-29 17:34:28 UTC https://padlet.com/305158/5oft91yl2c14/wish/247343944 305158 https://padlet.com/305158/5oft91yl2c14/wish/247345619 Divergent plate boundary. divergent plate boundary in Science. divergent plate boundary. A tectonic boundary where two plates are moving away from each other and new crust is forming from magma that rises to the Earth's surface between the two plates.]]> 2018-03-29 17:38:04 UTC https://padlet.com/305158/5oft91yl2c14/wish/247345619 305158 https://padlet.com/305158/5oft91yl2c14/wish/247346836 Transform Boundaries. The final type of boundary is one where the two plates slide against each other in a sideways motion. These boundaries between plates is referred to as transform boundaries. As two plates slide past one another, in a transform boundary, neither plate is added to at the boundary, nor destroyed.]]> 2018-03-29 17:40:50 UTC https://padlet.com/305158/5oft91yl2c14/wish/247346836 305158 https://padlet.com/305158/5oft91yl2c14/wish/247347690 In geology, a place where sections of the crust of the Earth move relative to each other. Faults tend to occur near the edges of tectonic plates.]]> 2018-03-29 17:43:13 UTC https://padlet.com/305158/5oft91yl2c14/wish/247347690 305158 https://padlet.com/305158/5oft91yl2c14/wish/247348363 The upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.]]> 2018-03-29 17:44:54 UTC https://padlet.com/305158/5oft91yl2c14/wish/247348363