Gadgetory

they're all around us they're under our feet these large slabs of rock they're constantly moving pushing against each other pulling away from each other sliding beside each other these are convergent divergent and transform faults first let's tackle convergent plate boundaries there are two types of coverage and plate boundaries that you'll see typically on this planet the first of the subduction zone when heavy oceanic crust pushes against lighter granitic crust this is continental crust what happens is when the two masses collide the heavy oceanic crust gets forced down into the Earth's mantle is the subduction zone where these occur usually trenches follow and form the second type of convergent plate boundary is the kind of Congress and plate boundary that makes up the Himalayan mountains this is when two Renick continental plates collide with each other and are both forced upwards now the Himalayas were Mount Everest isn't the tallest mountain in the world have formed over time because the Indian plate has been pushing into the Eurasian Plate for millions of years now the elevation of Mount Everest as long as these place continue to move in the direction that they are will only get taller now let's move on a divergent plate boundaries as you may already be able to tell divergent plate boundaries are when two plates continental or oceanic pull apart from each other an example of this would be the mid-atlantic ridge does there are two plates on either side and they slowly move apart in the middle there's a big chain of mountains but these cells move apart and we can tell the tectonic plates actually do exist from these motions in particular this is active plate movement that we can see with our own eyes and measure relatively quickly these plates move it I mean seven meters a year to sound like a lot but that's that that is a lot think about how large the continental plate is now your third type of fog is a transformed fall the first thing that comes to mind typically when a geologist thinks of a transform fall is the San Andreas Fault at this fall the Pacific plate is sliding up north and the North American plate is relatively stationary kind of moving down but really it's the Pacific plate that's moving quite a bit there are pictures of picket fences that have moved further down a plane simply from the sliding of one plate over the other if you look at this picture here the Pacific plate is on one side and the North American plate is on another this is crazy that that's literally the boundary between two huge continental plates there are seven to eight of these major tectonic plates across the globe it depends on how you define a tectonic plate how big they are just remember to be safe try to avoid volcanoes and also try to avoid earthquakes if you can geologists are currently working on more efficient ways to warn the public of these impending disasters to work in progress watch out for those volcanoes and earthquakes thanks for watching guys you