A | B |
mineral | is naturally occurring, inorganic, has definite crystalline structure, and definite composition |
rock | mixture of one or more types of minerals |
igneous rock | rock that formed as molten material cooled |
intrusive igneous rock | rock formed by magma that cools below Earth's surface |
extrusive igneous rock | rock formed by lava that cools on Earth's surface |
sediments | small particles of mud, sand, or rock caused by rock weathering or erosion |
erosion | the wearing away of land surfaces |
weathering | the breakup of rocks from chemical reaction or mechanical agents |
sedimentary rock | rock formed when particles recombine into a new solid |
detrital sedimentary rock | rock made of rock fragments which are compacted or cemented together |
compaction | sediments compress and form rock |
cementation | crystallization of minerals cements sediments together |
chemical sedimentary rock | rock formed from dissolved minerals that become concentrated when water evaporates |
organic sedimentary rock | rock formed by cementation from the remains of animals or plants |
metamorphic rock | rock formed when rock is changed by heat and/or pressure |
foliated | texture of metamorphic rock whose moineral grains are in parallel bands |
non-foliated | texture of metamorphic rock not in parallel bands |
rock cycle | process by which materials of Earth change to form different kinds of rocks |
fossils | the remains, impressions, or other evidence of the existance of plants and animals preserved in rock |