Convergent plate boundaries - processes and features

• Large ____ are ____?

  earthquakes, common
• oceanic and continental plate : _____ oceanic plate _____, and is forced under the less ____ ___ ___, this is known as ____, and this forms an ___ ____?

  denser, converges, dense continental plate, subduction, ocean trench
• ocean trenches are ___ and ____ depressions with depths of ____ to ______ meters?

  long, narrow,6,000, 11,000
• oceanic and oceanic plates: the ____ and ____ oceanic plate ____ beneath the younger and ___ ___ oceanic plate , creating a ____?

  older, dense, subducts, less dense, trench
• continental and continental plates: _____ of two plates forms ___ _____, for example the ____, formed by the collision of the ___ and ____ plates ?


  collision, mountain chains, Alps, African, Eurasian
• as the denser ___ ___ subducts beneath the less dense ____ ____, ___ ____ can occur, pulling the ____ of the oceanic plate , in some cases, _____can build up to form ___ ____, an example of this is the ____ found in ___ America?

  oceanic plate, continental plate, slab pull, rest, sediment, mountain chains, Andes, South
• when subduction occurs, ____ also takes place, leading to the ____ of the mantle _____ this causes magma to ____ and form ___ ____?

  dehydration, melting, wedge, rise, volcanic arc
• when two continental plates converge, there is little _____?

  subduction
• as ___ takes place, temperature and ___ ____, leading to ____ and ___ of overlying ____, molten material now ___ to the surface , this is known as ____, these ___ fracture the ____ and form ____, also known as volcanoes?

  subduction, pressure increases, dehydration, melting, layer, rises, plutons, plutons, lithosphere, protrusions
• as oceanic plate ____, it is under great ___ and generates ____, this is known as the ____ zone in which often occurs a ___ of ____, at this point, the oceanic plate is subducting at a __ degree angle?

  subducts, pressure, friction, benioff, swarm, earthquakes, 45