Rock Cycle -Chapter 8
Rock
A naturally occurring solid mixture made of minerals, rock fragments, organic matter or glass
Rock cycle
A series of processes on the surface and inside Earth that slowly changes rocks from one kind to another
metamorphic rock
A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
Crystalization
Cementation involves minerals dissolved in water
Weathering
Glaciers, wind, rain and the activities of some organisms that start to break down exposed rocks
Extrusive
Igneous rock that forms from lava on Earth's surface
Foliation
Metamorphic rock sometimes has this layered appearance
Parent rock
Name of the original rock from which new rocks are formed
Metamorphism
One rock turns into another through high temps and pressure
Deposition
Process in which sediment is laid down in new locations.
tectonic plates
Processes that move these also drive part of the rock cycle
Uplift
The process that moves large amounts of rock up to Earth's surface and to higher elevations
Lithification
The process through which sediment turns into rock
sedimentary rock
a rock that forms from compressed or cemented layers of sediment
Igneous rocks
a type of rock that forms when magma or lava cools and hardens
marble, slate, gneiss
examples of metamorphic rock
sandstone and limestone
examples of sedimentary rocks
Intrusive rock
igneous rock that forms as magma cools underground
pumice stone
is a type of volcanic rock, which is actually frothy lava solidified to form a porous rock to remove dry and annoying skin of the feet as well as calluses.
Magma
molten rock found inside the Earth
Lava
molten rock on Earth's surface
Compaction
pressure applied to layers of sediments
Rock formation
result of processes in the rock cycle
Geologists
scientists who study the earth
Grains
the individual particles in rocks