Igneous Rock
Formed by the cooling and hardening of molten rock in the earth
Igneous Rock
Sediments composed of plant and animal remains.
Organic Sediments
The single factor that has the greatest influence on texture.
Size
The mafic material w/ a lot of empty space due to gasses escaping during cooling.
Scoria
Common sedimentary rock composed of tiny flakes of clay.
Shale
Another name for intrusive rocks that usually have distinct mineral grains
Plutonic Rock
Silica, Calcite, and Iron Oxide
Natural cements
The family with dark mafic ties.
Gabbro Family
The black sheep of the family that cooled so fast that no crystals formed.
Obsidian
Since it is 30% empty space it is permeable.
Sandstone
Has a high % of calcium, magnesium, and iron.
Mafic magma
Sediments composed of fragments of other rocks
Clastic sediments
A large crystal surrounded by small crystals.
Porphyritic texture
The biggest coarsest member with mafic connections.
Gabbro
The common name for Calcite
Lime
Light Colored magma
Felsic magma
Can cause sediments to bond w/o natural bonding agents.
Pressure
How fast the magma cools and the amount of gas dissolved influence.
Texture or size of the crystal
Any light colored fine grained member of the Granite family.
Felsite
The coarsest of the sedimentary rocks composed of gravel and pebbles.
Conglomerate
Families differ in texture but not what?
Composition
The most important factor in the moving and sorting of sediments.
Running Water
Basic type of rock that already exists and is changed by extreme heat and pressure.
Metamorphic Rock
What family has a composition and color between the other two.
Diorite Family
Sedimentary rock that is both chemical and organic in nature.
Limestone