| word |
 |
|
| definition |
|
|
| basaltic |
describes dense, dark colored igneaous |
| lava |
molten rock that flows from volcanoes onto Earth's surface |
| cementation |
sedimentary rock-forming process in which sediment grains are held together by natural cements that are produced when water moves through rock and soil
|
| metamorphic rock |
forms when heat, pressure, or fluids act on igneous, sedimentary, or other metamorphic rock to change its form or composition, or both |
| compaction |
process that forms sedimentary rocks when layers of sediments are compressed by the weight of the layers above them |
| non foliated |
describes metamorphic rock, such as quartzite or marble, whose mineral grains grow and rearrange but generally do not form layers
|
| extrusive |
describes fine-grained igneous rock that forms when magma cools quickly at or near Earth's surface
|
| rock |
mixture of one or more minerals, rock fragments, volcanic glass, organic matter, or other natural materials; can be igneous, metamorphic, or sedimentary |
| foliated |
describes metamorphic rock, such as slate and gneiss, whose mineral grains line up in parallel layers
|
| rock cycle |
model that describes how rocks slowly change from one form to another through time |
| granitic |
describes generally light-colored, silica-rich igneous rock that is less dense than basaltic rock |
| sediments |
loose materials, such as rock fragments, mineral grains, and the remains of once-living plants and animals, that gave been moved by wind, water, ice, or gravity |
| igneous rock |
rock formed when magma or lava cools and hardens |
| sedimentary rock |
forms when sediments are compacted and cemented together or when minerals form from solutions |
| intrusive |
describes a type of igneous rock that generally contains large crystals and forms when magma cools slowly beneath Earth's surface |
Ch.18 LTI-MA 509
