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Chapter 6
| Question | Answer |
|---|---|
| Compaction | is the process in which sediment is squeezed and in which the size of the pore space between sediment grains is reduced by the weight and pressure of overlying layers. |
| Cementation | is the process in which sediments are glued together by minerals that are deposited by water. |
| Chemical sedimentary rock | is the process in which sediments are glued together by minerals that are deposited by water. |
| Organic sedimentary rock | Organic sedimentary rock is rock that forms from the remains of living things. Coal and some limestones are examples of organic sedimentary rocks. |
| Clastic sedimentary rock | is made of rock fragments that are carried away from their source by water, wind, or ice and left as deposits. |
| Sorting | The tendency for currents of air or water to separate sediments according to size is called sorting. |
| Angularity | As sediment is transported from its source to where it is deposited, the particles collide with each other and with other objects in their path. |
| Stratification | Layering of sedimentary rock |
| Cross-bedding | Some sedimentary rocks are characterized by slanting layers called cross-beds that form within beds. Cross-beds, which generally form in sand dunes or river beds |
| Ripple marks | Ripple marks are caused by the action of wind or water on sand |
| Mud cracks | form when muddy deposits dry and shrink. |
| Concretions | form when minerals precipitate from fluids and build up around a nucleus. |
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kaitlynquijas19