The Continents And Ocean Floor Make Up Earth
We live on the crust which is the outermost covering of our planet.
The continents and ocean floor make up earth. Plate tectonics and the ocean floor. The ocean floor is basalt rock a. Bathymetry the shape of the ocean floor is largely a result of a process called plate tectonics the outer rocky layer of the earth includes about a dozen large sections called tectonic plates that are arranged like a spherical jig saw puzzle floating on top of the earth s hot flowing mantle. The ocean basins extend from the edges of the continents down steep slopes to the ocean floor and into deep trenches.
Constructive forces cause physical features on earth s surface known as landforms to grow. Why do continents float high relative to the ocean basin. Also the continents and the ocean floor are not made of the same kind of rock. The crust mantle and the core.
The continents are thicker and less dense than the materials that make up. Though they are all interconnected they are generally divided into 5 oceans namely pacific ocean atlantic ocean indian ocean arctic ocean and antarctic ocean. The continents are made of a granite like rock a mixture of silicon and aluminum. Continents and ocean floors are part of the crust.
Granite is made when hot liquid rock cools and hardens under the. The outermost layer of earth is known as the crust. In fact we divide the crust in terms of. Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate it is composed of the upper oceanic crust with pillow lavas and a dike complex and the lower oceanic crust composed of troctolite gabbro and ultramafic cumulates.
Know what are the 5 oceans of the planet earth and get more deeper into them. What are the materials that make the earth crust of the continents and ocean floor 50 to 70 words 2 see answers nisha5434 nisha5434 from mud and clay to diamonds and coal earth s crust is composed of igneous metamorphic and sedimentary rocks. Also the continents and the ocean floor are not made of the same kind of rock. The oldest continental rocks are billions of years old so the continents have had a lot of time for things to happen to them.
Earth is divided into 3 separate layers. The crust overlies the solidified and uppermost layer of the mantle the crust and the solid mantle layer together constitute oceanic lithosphere. These large water bodies which surround the continents are called oceans. The ocean floor and continents are all part of the crust.
The ocean floors continents and islands make up earth s crust.