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An increase in weight to the crust due to thickening from plate collisions, build up of sediments, or glacial override will necessitate a corresponding downward movement into the ductile asthenosphere in an attempt to achieve gravitational equilibrium as it applies to the difference in buoyancy between the different Earth layers.. As this weight is removed through erosion or glacial retreat, the crust will gradually rebound to achieve equilibrium.
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What is the concept of a floating crust in gravitational balance?
Isostasy.
The maintenance of hydrostatic equilibrium of the Earth's crust is called?
isostasy
What is the name for the principle that brings floating crust into gravitational balanace?
Isostasy
Is Isostasy a type of stress?
Isostasy itself isn't a type of stress. Restoring isostasy, however, puts stress on the crust. Allow me to explain: Isostasy is the process of the earth's crust floating on the mantle. When the crust suddenly gets heavier (this happens during an ice age close to the poles, the weight of the ice pushing the crust down), the crust will sink deeper into the mantle. This process is called "restoring the isostasy". The isostasy is reached when the upward force from the mantle (the buoyant force) and the downward force from the crust (gravity) are in balance again. When an ice age ends, the isostasy will be disrupted again, because all the weight of the ice on the crust will be gone. The crust will start to rise again, using the same forces as before, but in a reverse way. This process is still going on in Scandinavia, where the crust is still lifting up from the last ice age. As with all geological processes, restoring isostasy isn't fast: it can take thousands of years to restore the isostasy. Analog to the isostacy (but a lot quicker), is when you push down an icecube in a glass of water. The icecube will get lower into the water, as you push it down. but it will push back, because it's lighter then the water, and the buoyant force tries to make it float as good as possible. When it doesn't move anymore, it means the buoyant force and the force you are applying with your finger are in balance, and isostasy is reached.
As erosion removes the tops of mountains the crust will rise upwards This is an example of what?
Isostasy
What is the definition of isostatic?
An isostatic is something that pertains to or is characterized by isostasy. Isostasy is the equilibrium of the Earths crust.
What is the immediate result of a sudden slippage of rocks within earths crust?
Isostasy
What is vertical Positioning of the Earths crust so that gravitational an buoyont forces balance called?
Isostasy
What does Oceanic crust subduct under contiental crust?
Isostasy
Why do isostasy occurs?
equillibrium in earths crust such that the force tending to elevate land masses balance the forces tending to depress land masses equillibrium in earths crust such that the force tending to elevate land masses balance the forces tending to depress land masses
What is the concept of a floating crust in gravitational balance?
Isostasy.
What is the effect of actions of magma in the earths crust?
It is from the Volcano
How does isostasy impact the surface of the earth?
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.
A condition of gravitational equilibrium in the Earth's crust is know as?
isostasy
The maintenance of hydrostatic equilibrium of the Earth's crust is called?
isostasy
What did the theory of isostasy states?
everything on the crust is in a state of balance
What is the name for the principle that brings floating crust into gravitational balanace?
Isostasy
