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Chapter 6 Vocab ES
Vocab Words
| Term | Definition |
|---|---|
| Sediment | Small pieces of rock that are moved and depositid by water, wind, glaciers, and gravity. |
| Lithification | The phal and chemical processes that transform sediments into sedimentary rocks. |
| Cementation | Process of sedimentary rock formation that occurs when dissolved minerals precipitate out of groundwater and either a new mineral grows between the sediment grains or thee same mineral grows between and over the grains. |
| Bedding | Horizontal layering in sedimentary rock that can range from a few millimeters to several meters thick. |
| Graded Bedding | Type of bedding in which particle sizes become progressively heavier and coarser toward the bottom layers. |
| Cross Bedding | Depositional feature of sedimentary rock that forms as inclined layers of sediment are carried forward across a horizontal surface. |
| Clastic sedimentary rock | Most common type of sedimentary rock, formed from the abundant deposits of loose sediments that accumulate on Earth's surface; classified according to the size of their particles. |
| Clastic | Rock and mineral fragments produced by weathering and erosion and classified according to particle size and shape. |
| Porosity | Percentage of open spaces between grains in a material. |
| Evaporite | The layers of chemical sedimentary rocks that form when concentrations of dissolved minerals in a body of water reach saturation due to the evaporation of water; crystal grains precipitate out of solution and settle to the bottom. |
| Foliated | Metamorphic rock, such as schist or gneiss, whose minerals are squeezd under high pressure and arranged in wavy layers and bands. |
| Nonfoliated | Metamorphic rocks like quartzite and marble, composed mainly of minerals thaat form with blocky crystal shapes |
| Regional metamorphism | Process that affects large areas of Earth's crust, producing belts classified as low, medium, r high grade, depending on pressure on the rocks, temperature, and depth below the surface. |
| Contact metamorphism | Local effect that occurs when molten rock meets solid rock. |
| Hyrdothermal metamorphism | Occurs when very hot water reacts with rock, altering its mineralogy and chemistry. |
| Rock cycle | Continuous, dynammic set of processes by which rocks are changed into other types of rock. |
Created by:
JCrafton14
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