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22 Cards in this Set
- Front
- Back
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Sedimentary Rocks |
Form when existing rocks are broken down into Sediments. |
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Sediments |
Consist mainly of weathered rock debris |
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Weathering |
The process that breaks rocks into Sediments and the first step of forming Sedimentary Rocks. |
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Chemical Weathering |
When minerals in rocks change into new substances. |
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Can living things cause chemical and physical weathering? |
Yes!!! |
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How do weathered sediments move? |
Water, wind, ice, or gravity Carrie's them away. |
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Erosion |
A combination of weathering and the removal of rock. |
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What happens when agents of Erosion (water, wind, ice, or gravity) loses energy? |
It drops the sediment. |
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What is the process when the sediment is dropped? |
Deposition. |
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What is the largest sediments that are deposited first? |
Rounded Pebbles |
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Smaller sediments that are dropped later? |
Pieces of sand (sandstone) |
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Compaction and Cementation Process |
Changes sediments into sedimentary rock. |
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Compaction |
The process that squeezes, or compacts sediments. |
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Cementation |
Takes place when dissolved minerals are deposited in the tiny spaces among the sediments. |
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What are two main classified groups for igneous and sedimentary rocks? |
Clastic and Chemical Sedimentary Rocks |
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Clastic Sedimentary Rocks |
Made with weathered bits of rocks and minerals. |
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Chemical Sedimentary Rocks |
Forms when dissolved minerals precipitate from water solutions. |
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Different minerals in Clastic Sedimentary Rock. The most common are... |
...clay minerals and quartz. |
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Examples of chemical rocks are... |
...some limestone, rocks, salt, chert, flint, and rock gypsum. |
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Unique features of Sedimentary Rocks are clues to... |
...how, when, and where the rocks formed. |
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Undisturbed Rocks, the oldest layers are found ate the... |
...bottom |
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The youngest layers are found at the... |
...top. |
