What are the links between metamorphic and igneous and sedimentary rocks?

Answer 1

They are all linked because you have to go through a cycle to get each one. Each one comes from the other.

Answer 2

== == All are composed of minerals. Sedimentary rock can be formed from the weathered and eroded remnants of both extrusive and intrusive igneous rock. All are part of the rock cycle. Other than these links, the three types of rocks mentioned have no particularly good connection.
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Answer 3

The rock cycle links metamorphic, sedimentary, and igneous rocks through a series of chemical and physical processes. Because this is a cycle, there is no beginning or end, but for the sake of simplicity we'll start with magma.

Magma, found in the earth's core, is molten rock. Through a process called uplift, where substances below the earth's surface are pushed upward, the magma cools and goes through a second process called crystallization. In that sense you can almost think of it as water freezing. These crystallized rocks are igneous rocks which can be one of two classifications. If the rock has fully lifted to the surface of the earth it is called an extrusive rock or a volcanic rock. Rocks that stay beneath the surface are intrusive or plutonic rocks. Igneous rocks include pumice, basalt, and obsidian.

Igneous extrusive rocks can then undergo weathering, a process by which rocks and minerals are physically, chemically, or biologically broken down into soil, or sediments. These sediments will then be subject to erosion (further break down), transport, and deposition (shifting and settling). Over time these deposited sediments, like in a river bed for example, will cement together forming sedimentary rocks. Limestone, sandstone, and coal are all sedimentary rocks.

Sedimentary rocks become buried over time, and with the increased temperature and pressure found beneath the surface of the earth become metamorphic rocks. Metamorphic rocks, like marble, can then be melted again to magma, and the cycle continues.

But this isn't a perfect circle. Igneous rocks can be transformed to metamorphic rocks, which can be uplifted and weathered to sediment. The sedimentary rocks formed by that sediment may be broken down rather than buried and simply become a different type of sedimentary rock.

If it is hard to visualize with those extra steps in there, drawing it out might help. There will be a circle with the four original steps and three arrows interconnecting those. The terms for the original circle are in bold to help clarify that idea.

Answer 4

Metamorphic rocks are formed from pre-existing rocks (igneous or sedimentary) that undergo chemical and physical changes due to heat and pressure. Igneous rocks are formed from the solidification of molten magma, while sedimentary rocks are formed from the accumulation and compression of sediment particles. Together, these rock types form the rock cycle, where each type can transform into another through various geological processes.

Answer 5

They are all linked because you have to go through a cycle to get each one. Each one comes from the other.

Answer 6

Rock cycles.