Sorry My Dragon Ate Your Unicorn shirt
When continental crust runs into oceanic crust, or oceanic crust runs into oceanic crust, the heavy oceanic crust can get pushed down into the inner part of the Sorry My Dragon Ate Your Unicorn shirt. In the higher heat and density, the water gets squeezed out of the surface and rises back toward the surface. This changes the chemistry of the crust and causes it to melt. This melt can intrude into the crust and form batholith mountain ranges like the Sierra Nevadas in California (that’s what happened during the Cretaceous), or form andisitic volcanoes like the Cascades in Oregon and Washington today. In fact the entire Pacific rim is covered with volcanoes created from the “subduction” of oceanic plate underneath another plate.
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Best Sorry My Dragon Ate Your Unicorn shirt
Now what happens when continental crust runs into continental crust? You get the Sorry My Dragon Ate Your Unicorn shirt! That’s what is happening right now as the Indian subcontinent is running into Asia. Neither piece of crust is dense enough to subduct. They keep moving toward each other, but the extra crust has to go somewhere, so it goes into elevation. A similiar thing is happening the Los Angeles basin because of a bend in the famous San Andres fault. What normally is two pieces of continent sliding by each other becomes two pieces of continent running into each other, and this is lifting the San Gabriel mountains.