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