Terms in this set (21)
start off as magma; there are two types of these rocks: extrusive and intrusive
formed by erosion, formed near or at the Earth's surface, and no heat or pressure involved
changes with temperature and pressure but remains solid, usually takes place in the Earth, and meaning to change shape
the process in which solids become liquids.
Heat and Pressure
used to create igneous and metamorphic rocks.
the wearing away and removing of rock and soil caused by such forces as wind and flowing water.
the process of setting out sediment grains from water of wind.
process where sediments grains become squashed closer together during burial.
material deposited by wind, water, or ice.
cement sediment grains are stuck together by minerals deposited from solution in groundwater.
a squashed texture common in metamorphic rocks where crystals of platy minerals like mica lie in the same direction.
the process of liquids becoming solids.
the slow motion of rigid "plates" of the lithosphere due to the movement of the mantle beneath.
Layer of rocks
another name for it is strata.
Forming sedimentary rock
Sediments fall into water at the ocean floor. Then the sediments are compacted with each other.
the change of mineral form usually due to chemical reactions in rocks during metamorphism.
Texture of igneous rocks
The can be smooth and glassy or fine grained.
Igneous rocks are formed from
Minerals and crystals
Extrusive Igneous rocks
rocks formed by eruptions at the Earth's surface.
Intrusive Igneous rock
formed from magma, either erupted from a volcano or cooled below the ground.
Explain the rock cycle.
First igneous rocks are formed, either from eruptions or from magma. Next sedimentary rocks form when the igneous rocks go through weathering and erosion. Heat or pressure can form these sedimentary rocks into metamorphic rocks.