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yovans
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How is metamorphism responsible for the Earth's surface outlook?
That's not entirely true. In locations where we have extensive metamorphic rocks, such as teh Canadian and Baltic shields, we have a very distinctive topography of comparatively flat land with many lakes.davenn said:I don't see it as responsible for the way the surface of the Earth looks
Ophiolite said:That's not entirely true. In locations where we have extensive metamorphic rocks, such as teh Canadian and Baltic shields, we have a very distinctive topography of comparatively flat land with many lakes.
Where the exposure is more restricted in area the harder character of the metamorphic rocks is likely to see them higher than the surrounding countryside. The Scottish Highlands would be an example of that.
yovans said:How is metamorphism responsible for the Earth's surface outlook?
Metamorphism refers to the process of rocks changing form due to high pressure and temperature. This can cause changes in the physical and chemical properties of the rocks, which in turn can affect the Earth's surface in various ways.
There are three main types of metamorphism: contact, regional, and dynamic. Contact metamorphism occurs when rocks are heated and altered by contact with molten magma. Regional metamorphism happens over a large area due to high temperature and pressure, often associated with mountain building. Dynamic metamorphism occurs when rocks are subjected to high pressure and strain during tectonic activity.
Metamorphism can play a crucial role in the formation of many natural resources. For example, the heat and pressure involved in regional metamorphism can create conditions for the formation of valuable minerals such as gold and diamonds. Metamorphic rocks also often serve as important reservoirs for oil and natural gas.
Metamorphism is an important part of the rock cycle, which describes the continuous processes of rock formation and destruction on the Earth's surface. Metamorphic rocks can be formed from other types of rocks through the processes of heat and pressure, and these rocks can then be further transformed into other types of rocks through erosion and other geological processes.
Metamorphism has played a critical role in shaping the Earth's geological history. The formation of mountain ranges, the creation of valuable mineral deposits, and the transformation of rocks from one type to another are all significant events that have occurred due to metamorphism. By studying metamorphic rocks, scientists can gain insight into the Earth's past and the processes that have shaped its surface over millions of years.