Compare and contrast igneous and metamorphic rock formation?

Answer 1

Metamorphic rocks are formed by heat and pressure. Sedimentary rocks are formed by Lithification. Metamorphic rocks texture depends on how much eat and pressure was exerted on it. Sedimentary rocks texture is usually fine grained. Not much i could find on compare.

Answer 2

Metamorphic rocks are formed by heat and pressure. Sedimentary rocks are formed by Lithification. Metamorphic rocks texture depends on how much eat and pressure was exerted on it. Sedimentary rocks texture is usually fine grained. Not much i could find on compare.

Answer 3

Metamorphic rock is formed when igneous rock or sedimentary rock are heated then pressurised. Igneous rock is formed three different ways: extrusive igneous is formed when magma bursts out of a volcano (or lava) and then cools rapidly and creates rocks such as obsidian. Intrusive igneous rock is formed just under the surface of the Earth and is created when magma is set in a chamber and then takes years to millenniums to cool and creates rocks such as granite. Then there is the last type of igneous rock which is a plutonic igneous--this is formed well below the surface of the Earth and is actually closer to the centre of the Earth instead of the surface. It is formed so slowly that this type of igneous is the largest of the igneous. The formation is created from the same as intrusive but is much deeper (making it longer to cool down).

Answer 4

Coming from a student, the Igneous rock can be made from magma or lava, and contains small pores or holes. Metamorphic rock is formed by pressure and extremely high temperatures, and can be extremely dense. Sedimentary rock is obviously made from sediment, and can be made when the rocks that have been weathered their minerals fall so they form in layers as each layer hardens.

Answer 5

Contrast: Igneous rocks are formed by cooling magma when metamorphic rocks are formed by extreme temperature and pressures.

Igneous rocks can have gas pockets when metamorphic are extremely dense.

Compare:

Both may have large silica contents and are created under very hot temperatures

Answer 6

lava and/or magma cools and forms igneous rocks. igneous rocks go through weather and erosion which forms sediments. these sediments are collected and compacted. this causes sedimentary rocks. the sedimentary rocks go through weather and erosion as well as being exposed to heat and pressure. this causes metamorphic rocks. metamorphic rocks go through heat and pressure and then they melt and become lava or magma again. this is called the rock cycle.

Answer 7

• they are both in the same rock cycle.
• they are all rocks.
• they all conet together some how.