A | B |
rock | a naturally occurring solid mixture of 1 or more minerals or organic matter |
rock cycle | the series of processes in which a rock forms, changes from one type to another, is destroyed, and forms again by geological processes |
erosion | the process by which wind, water, ice, or gravity transports soil and sediment from one location to another |
deposition | the process in which material is laid down |
composition | the chemical makeup of a rock |
texture | the quality of a rock that is based on the sizes, shapes, and positions of the rock's grains |
intrusive igneous rock | rock formed from cooling and solidification of magma beneath the Earth;s surface |
extrusive igneous rock | rock that forms as a result of volcanic activity at or near the Earth's surface |
strata | layers of rock |
stratification | the process in which sedimentary rocks are arranged in layers |
foliated | the texture of metamorphic rock in which the mineral grains are arranged in planes or bands |
nonfoliated | the texture of metamorphic rock in which the mineral grains are not arranged in planes or bands |