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6-1 flash cards
| Term | Definition |
|---|---|
| Sediments | small pieces of rock that are moved and deposited by water,wind, glaciers, and gravity. |
| weathering | produces rock and mineral fragments known as sediments |
| chemical weathering | occurs when the minerals in a rock are dissolved or otherwise chemically changed |
| physical weathering | Is where minerals remain chemically unchanged |
| Erosion | The removal and transport of sediment |
| Deposition | When transported sediments are deposited on the ground or sink to the bottom of a body of water. |
| Lithification | The physical and chemical process that transforms sediments into sedimentary rocks. |
| compaction | The weight of overlying sediments forces the sediment grains closer together, causing the physical changes |
| cementation | Occurs when mineral growth glues sediment grains together into solid rock |
| bedding | The primary feature of sedimentary rock is horizontal layering |
| graded bedding | Bedding in which the particle sizes become progressively heavier and coarser toward the bottom layers |
| cross bedding | Another characteristic feature of sedimentary rocks |
| ripple marks | When sediment is moved into small ridges by wind or wave action |