science

Igneous rocks that form from magma solidifying underground and have large crystals are called what?

• Intrusive igneous rocks

• Extrusive rocks

What do we call intrusive igneous rock bodies formed from ocean subduction and mountain building processes?

• Plutons

• Plutonium

How do plutons get exposed or become visible at the surface?

• Uplift and erosion

• Erosion and weathering

How do plutons get exposed or become visible at the surface?

• Uplift and erosion

• Erosion and weathering

List three ways that plutons are classified?

• Size , shape, and relationship to surrounding rocks .

• Size, temperature, shape

What are irregularly shaped masses of coarse grained igneous rocks that cover at least 100 km^2

• They are the largest plutons and generally form10-30 below earths surface they are called BATHOLITHS

• They are called stocks

What are irregularly shaped masses of coarse grained igneous rocks that cover less than 100km2

• Stocks

• Laccoliths

What are lends shaped plutons with a round top and flat bottom that form when magma intrudes into parallel rock layers close to earths surface causing rocks to bow upward like a dome ?

• LACCOLITHS

• STOCKS

What are relatively thin horizontal intrusions that form when magma intrudes parallel to layers of rock relatively close to the surface?

• Sills

• Flat sheet

What are thin vertical or diagonal plutons that cut across preexisting rocks and often form when magma invades cracks surrounding rock bodies ?

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