Igneous rock
Texture, shape, size, and arrangement.
Where does metamorphism take place?
Metamorphism most often occurs in rocks that are buried deeply beneath earth's crust
What are sedimentary rocks?
what rocks form from layers of weathered, eroded, and deposited sediment
molten material that forms deep
beneath the Earth’s surface.
What is Magma?
A model that describes the ways in which rocks transform from one type to another
Slow cooling:Large crystals - Rapid cooling:Small crystals.
How is contact metamorphism different than regional metamorphism
Contact is caused by more localized areas of elevated temperature, while regional is caused by large area heating, usually causing mountains.
What are the three types of sedimentary rocks?
Clastic, chemical, and biochemical
A Rocks tendency to break on a clean line
What is cleavage?
What is igneous rock
Rocks formed from cooled magma or lava
What contains at least 45% magnesium andiron rich silicates, making them dark colored/dense?
Basaltic rock
What are three agents of metamorphism.
Heat, pressure, and fluids
What features are unique to some sedimentary rocks?
Strata, fossils, ripple marks, and mud cracks.
the "weathering" and removal of rock.
What is erosion?
What is sedimentary rock
Formed from the layers of weathered, eroded, and deposited sediment
What contains 25-45% dark silicate minerals
Andesitic rocks
What are foliated metamorphic rocks and how do they form?
Contains minerals that are oriented perpendicular to the direction of greatest pressure.
What are the major processes involved in the formation of sedimentary rocks
Compaction and Cementation
cementation is when dissolved minerals are deposited in tiny spaces among the sediment.
What is cementation?
What is metamorphic rock?
Formed when preexisting rocks are altered by pressure, heat, and/or fluids
What contains up to 25% dark silicate minerals?
Grantic composition
How are metamorphic rocks classified?
What rocks are made of dissolved sediments that precipitate or separate directly from water
Chemical sedimentary rocks
solid mass of Mineral or mineral like matter that is a naturally occurring part of our planet
What is rocks?
What are the three major types of rock
Igneous, sedimentary, and metamorphic