Is it possible to get a contact high from marijuana? Yes, it is just like second hand smoke from cigarettes, you inhale the second hand smoke from the weed, and even though it is diluted and most of the THC is gone, there is sti â¦ ll enough to lightly phase a non smoker.
When an oceanic plate meets a continental plate, the oceanic plate gets subducted under the edge of the continental plate. This causes a huge trench to form at the boundary. The oceanic plate reheats and melts as it comes into contact with the molten mantle.
Age of oceanic crust: youngest (red) is along spreading centres. Seafloor spreading happens at the bottom of an ocean as tectonic plates move apart. The seafloor moves and carries continents with it. At ridges in the middle of oceans, new oceanic crust is created. At the Mid-Atlantic Ridge (and other places), material from the upper mantle rises through the faults between oceanic plates. It forms new crust as the plates move away from each other. The new crust then slowly moves away from the ridge. Seafloor spreading helps explain continental drift in plate tectonics. Earlier theories (e.g. by Alfred Wegener) of continental drift were that continents 'plowed' through the ocean.