Isostasy is the state of gravitational equilibrium between or lithosphere and mantle such that the crust floats at an elevation which is dependent on its thickness and density.
Evidence of Isostasy include the following
- Greenland
- An iceberg floating on the ocean
Isostatic Adjustment refers to the transient nonelastic response of the earth's crust to loading and unloading which is primarily caused by erosion, deposition, water loading ice accumulation, deglaciation etc.
Isostatic movement refers to the the movement of the solid part of the earth until it is reaches equilibrium. This is also sometimes referred to as isostatic compensation.
The major importance of isostatic movement is that it controls the regional elevations of continents and ocean floors in line with the densities of their underlying rocks.
Plate tectonics describes the gliding over of the Earth's outer shell which is divided into large slabs of solid rock, called plates over Earth's mantle, which is the rocky inner layer above Earth's core.
The factors that affect plate movements include the following
- Convection in the Mantle
- Ridge push
- Slab pull
Six main plates in the world include the following
- African
- Antarctic
- Eurasian
- Indo-Australian
- North American
- Pacific
- South American.
Some evidence of Tectonic plates movement include
- fossils
- glaciers
- complementary coastlines
The impacts of plate movement include
- plate movement causes mountains rise where plates push together
- plate movement causes mountains or converge
- plate movement causes continents to fracture
- plate movement causes oceans to form where plates pull apart, or diverge.
Evidence that proves the existence of continental drift include
- fit of the continents
- paleoclimate indicators
- truncated geologic features
- fossils.
Learn more about Plate movement at brainly.com/question/18219355
Learn more about Isostasy at brainly.com/question/4347729
Learn more about continental drift at brainly.com/question/974409
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