It's due to the mountain building process where one plate subducts under another, uplifting the lighter, less dense plate. Before melting of the subducting crust occurs, there are actually two plates, one stacked above the other.
The crust not under the ocean is called continental crust. It is thicker and less dense compared to oceanic crust and forms the landmasses on Earth's surface.
The Earth's lithosphere is generally thicker in the vicinity of trenches than around mid-ocean ridges. At mid-ocean ridges, where new oceanic crust is formed through volcanic activity, the lithosphere is relatively thin. Conversely, at subduction zones near trenches, the lithosphere is thicker due to the presence of older, denser oceanic crust being forced down into the mantle.
The Earth's crust is thicker on land compared to the ocean because of the presence of continental crust, which is generally thicker and less dense than oceanic crust. Continental crust is composed of less dense rocks like granite and sedimentary rocks, which contribute to its overall thickness.
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
almost no silica in ocean water but most of its the earths crust.
mountains
Earth's crust is far thicker under the continents.
False. The crust is actually thinnest under ocean basins due to the presence of dense oceanic crust. Under high mountains, the crust tends to be thicker due to the compression and folding of rock layers.
The Earth's crust can vary in thickness, but on average it is about 5-70 kilometers (3-44 miles) thick. However, it can be much thicker under mountain ranges and thinner under the ocean floor.
Oceanic crust is thinner and denser than continental crust.
continental crust
The crust not under the ocean is called continental crust. It is thicker and less dense compared to oceanic crust and forms the landmasses on Earth's surface.
earths crust includes ocean floors and
The Earth's crust is thicker on land compared to the ocean because of the presence of continental crust, which is generally thicker and less dense than oceanic crust. Continental crust is composed of less dense rocks like granite and sedimentary rocks, which contribute to its overall thickness.
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
The part of the Earth's crust that is not covered by ocean water is called the continental crust. It is thicker and less dense than the oceanic crust and primarily makes up the continents.
The crust is generally thicker under a mountain range compared to under the sea. This is because mountain ranges are formed by the collision of tectonic plates, which can result in the crust being pushed up and folded, leading to its thickening. In contrast, the crust under the ocean is thinner due to the process of seafloor spreading where new crust is constantly being created at mid-ocean ridges.