SLO 3- Major Rock Types

Bowen's Reaction Series

Bowen's Reaction shows whats to crystallize first to last and what is ultramafic, mafic, intermediate, to felsic.

Igneous Rocks

Batholith: Magma sits in country rock

Sill: where intruding rocks occur

Dike: below the sill

Laccolith: Is big and goes into next layer higher than the sill

Pipe: is going up and through a volcano

Metamorphic Rocks

Metamorphic is high in temperature and high in pressure. It controls the Parent rock, Pressure, Fluids and Time. This rock is found in subduction areas like sea floor spreading, continent-continent, volcanoes, all of these have increased temperature or pressure.

Foliation

"The process of taking a rock and compressing them making it have a more layered look."

Non Foliated

"Is not as compressed and does not look too layered."

FLUID is another way how the metamorphic process works and it helps in a way where H2O helps speed up a chemical reaction.

"The longer time moving through the metamorphic process the higher grade quality of a rock you get." An Example of Metamorphism is the Himalayas where there is a lot of pressure and creates slate, schist, phyllite, and gneiss. Sea Floor Spreading is also another example of metamorphism because of the depth and temperature.

Sedimentary Rocks

Mechanical Weathering

Both Mechanical and Physical weathering breaking but not changing

Physical Weathering

Chemical Changing the Chemistry

Deposition

Lithification

Compaction & Cementation. It is rapid and clastic because it occurs in a convergent environment." Also Divergent in rift valleys and Transform in fault-bounded basins."

(Sources: Lecture Notes and Textbook)

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