Rocks
An extrusive rock with dark color, fine grains, and low silica?
Basalt
What does igneous rock start out as?
Magma
What are the small pieces of minerals and rock that are formed from weathering?
Sediment
What does it take for a rock to undergo metamorphism?
Temperature and Pressure.
What are the 3 major rock groups?
Igneous, Sedimentary, and Metamorphic
What type of felsic igneous rock is black with a glassy texture?
Obsidian
How does igneous rock form?
When magma cools and solidifies.
Dissolved minerals separate from water that passes through sediment and do what?
Bind rock and mineral fragments together into sedimentary rock.
These are the two ways in which metamorphism can occur?
Contact and Regional Metamorphism.
Is the window by Kayden?
Yes
Rock that is formed from lava on the earth's surface?
Extrusive Igneous Rock
What are the 2 basic compositions of igneous rocks?
Felsic and Mafic
This is where sedimentary rocks form.
At or near the Earths surface.
What are the two textures of metamorphic rock?
Foliated and nonfoliated Metamorphic Rock.
Can diamonds melt? (Random)
Yes
The type of rock forms from magma or lava cooling?
Igneous rock
Felsic rocks tend to be a darker color and Mafic rocks tend to be a lighter color. (True) or (False)
False
What is the most noticeable feature of sedimentary rock?
There layers
The texture of metamorphic rock in which the mineral grains are arranged in planes or bands.
Foliated
This is the process in which sedimentary rocks are arranged in layers.
Stratification
Rock that is formed from magma slowly cooling and crystalizing before its able to reach the Earths surface.
Granite
Fine grained igneous rocks form when magma cools...
Quickly
What are the 3 main types of sedimentary rocks?
Clastic, Chemical, and Organic.
These minerals are used to estimate the temperature, depth, and pressure at which a rock undergoes metamorphism. (Hint) Many of these minerals only form in metamorphic rock.
Index Minerals
This is a type of organic sedimentary rock that forms underground when partially decomposed plant material is buried beneath sediment and is changed due to heat and pressure over millions of years.
Coal