Igneous RockIgneous Rock
Formed from magma or lava after it cools
Intrusive
◦Cooling is slow beneath Earth’s surface
◦Large mineral crystals
Extrusive
◦Cooling fast on Earth’s surface
◦Small mineral crystals, glassy
Sedimentary RockSedimentary Rock
3 sub-types:
Detrital- Formed from compaction and/orcementation of rock pieces and mineralgrains.
Organic- once living/shell fragmentscompacted together.
Chemical- Forms from the chemicaldepositing of materials that were oncedissolved.
Metamorphic rockMetamorphic rock
Formed when rocks are changed intodifferent kinds of rocks by heat andpressure deep beneath the surface of theEarth.
Visible layers formed when mineralswithin the rock are lined up
◦Foliated- layered bands
◦Non-foliated- no bands
Honors Extension:Honors Extension:
Think back to the different plate boundaries…
•Convergent cvc
•Convergent cvo
•Convergent ovo
•Divergent cvc
•Divergent ovo
•Transform
•On “yo” side, write the types of rocks youthink could be found at each boundary andexplain why. You can draw a picture as partof your explanation if you want.
You could make 3 columns: Boundary, Rock Type, Explanation