Sedimentary Rocks Facts
Sedimentary Rocks Facts
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| Interesting Sedimentary Rocks Facts: |
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| Sedimentary rocks are extremely important resources that give us clues about the Earth's past. |
| Sedimentary rock has layers of sediments that are arranged according to their density. |
| Compaction is the process by which sediments form sedimentary rock. |
| Cementation is the process of minerals dissolving and then holding the particles together in a sedimentary rock. |
| The process by which sediments harden to form sedimentary rock is called lithification. |
| Fossils of organisms become buried over time and are often found in sedimentary rock. |
| Sedimentary rocks are divided among three different groups based on their composition and texture. |
| Classic sedimentary rock forms when older rocks break down and become compacted together. |
| Examples of classic sedimentary rock include sand-stone and breccia. |
| Sand-stone is a sedimentary rock that has been used to make housewares since prehistoric times. |
| Organic sedimentary rock has a high amount of organic material and can be used as a source of petroleum and tar. |
| Examples of organic sedimentary rock include limestone and coal. |
| Chemical sedimentary rock forms when minerals come out of a solution and crystallize. |
| The majority of chemical sedimentary rock comes from minerals left behind by evaporated water. |
| An example of chemical sedimentary rock includes halite which is also known as table salt. |