Rock Cycle	Intrusive Igneous Structures	Igneous Rock Textures	Mafic v. Felsic v. Intermediate	Igneous Rocks in General
10	10	10	10	10
20	20	20	20	20
30	30	30	30	30
40	40	40	40	40
50	50	50	50	50
Final Question

A Metamorphic rock melts into lava which cools and hardens

A Metamorphic rock melts into lava which cools and hardens

Igneous

A Sedimentary rock is recrystallized at high temperature and pressure

Metamorphic

An Igneous rock is weathered into sand which gets compacted

Sedimentary

An Igneous rock is recrystallized at high temperature and pressure

Metamorphic

A sedimentary rock that erodes into sediment that gets compacted and cemented

Sedimentary

A sheet of magma flows between rock layers and hardens parallel layers

sill

An underground intrusion less than 100 km2

stock

Largest intrusive feature (forms the core of many Mt. ranges).

Batholith

Formed when magma forces itself vertically across rock layers and hardens

Dike

Identify the following picture:

Laccolith

Igneous rocks that are formed deep underground have what kind of texture?

Coarse grained

Igneous rocks that cool super fast, and have no crystals have what kind of texture?

Glassy

igneous rocks that form on the surface and cool quickly have what kind of texture?

fine grained

Igneous rocks that look like 'frozen pepsi foam' have what kind of texture?

Pumice

An igneous rock that has both large and small crystals has what kind of texure?

Porphyritic

Dark colored igneous rocks are which?

Mafic

Light colored igneous rocks are which?

Felsic

Rocks that are rich in Fe and Mg are which?

Mafic

A rock that is dark in color yet light in weight is which?

Intermediate

Mafic rocks make up which type of crust?

Oceanic

A Metamorphic rock is weathered into pebbles which get compacted

Sedimentary

Large amounts of lava come out and fill in the valleys. What is this called?

Lava plateau

A fine grained extrusive igneous rock.

Basalt

Igneous rocks formed underground are called

Intrusive

Igneous rocks that are light in color, rich in silica make up what type of crust?

Continental

A rock that has no crystal and has a glassy texture.

Obsidian

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