Question | Answer |
Basaltic | igneous rocks, are dense and dark-colored |
Lava | Magma when it has reached Earth's surface |
Cementation | Occurs when minerals such as quartz, calcite, and hematite are deposited between the pieces of sediment |
Metamorphic Rock | Rocks that have changed becuase of changes in temperature and pressure or the presence of hot, watery fluids |
Compaction | Pressure from the upper layers pushes down on the lower layers, if sediments are small, they can stick together and form solid rock |
Nonfoliated | Mineral grains grow and rearrange, but do not form layers |
Extrusive | igneous rocks that are formed as lava cools on the surface of the Earth |
Rock | mixture of rock fragments, volcanic glass, organic matter, or other natural materials |
Foliated | Mineral grains line up in parallel layers |
Rock Cycle | Illistrates the processes that create and change rocks |
Granatic | igneous rocks, are light-colored rocks of lower density than basaltic rocks |
Sediment | Loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity |
Igneous Rock | When hot magma cools and hardens |
Sedimentary Rock | Forms when sediments are pressed and cemented together, or when minerals form from solutions |
Intrusive | Rocks that form from magma below the surface |