mass of Earth = 5.97219 × 1024 kilograms. Roughly.
The mass of the earth is not represented by the earths crust
No. The crust contains a small fraction of earth's mass. Most of the mass is contained in the mantle.
its the percentage in mass !
The Earths crust.
The second most abundant element in the Earth's crust is silicon, comprising 27.8% of the crust by mass.
With a very sizable iron core and a (by comparison) wafer-thin crust, I doubt that the earth's crust even approximates a full percentage point.
Butt face
108321*1012km3
Oxygen is the most abundant element in Earth's crust, making up about 47% of its mass. Silicon is the second most abundant element, comprising approximately 28% of the crust's mass.
Isostacy refers to an equilibrium level maintained by the earths crust on top of the mantle. The theory holds that the weight of the earths crust will displace a certain amount of the underlying mantle, and that an equilibrium is reached whereby the mass of the displaced crust and the mass of the displaced mantle are equal, thus holding that part of the crust at a certain height.
When mass is added to Earth's crust, it causes the crust to subside and sink due to the increased weight. Conversely, when mass is removed from the crust, it can rebound and rise due to the decreased load. This process is known as isostatic adjustment and can result in changes in the Earth's topography.
The Earths crust is approximately 650 km deep.
If you're asking how much of the earth is in the crust layer, less than one percent. If you're asking what it's composition is:SiO2:60.6Al2O3:15.9CaO:6.4MgO:4.7Na2O:3.1Fe as FeO:6.7K2O:1.8TiO2:0.7P2O5:0.1