Disharmonic folds in gneiss.  Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks.

Disharmonic folds in gneiss. Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks.

SC.4.E.6.1 Identify the three categories of rocks: igneous, (formed from molten rock); sedimentary (pieces of other rocks and fossilized organisms); and metamorphic (formed from heat and pressure).

Types of Rocks

SC.4.E.6.1 Identify the three categories of rocks: igneous, (formed from molten rock); sedimentary (pieces of other rocks and fossilized organisms); and metamorphic (formed from heat and pressure).

These rock layers started out flat and have been compressed into accordion shapes by regional pressures.

These rock layers started out flat and have been compressed into accordion shapes by regional pressures.

Metamorphic Rock Facts for Kids - Information & Examples

Metamorphic Rock Facts for Kids - Information & Examples

Geology.com - great site with photo examples of different types of rocks

Geology.com - great site with photo examples of different types of rocks

This is a small study booklet that shows a great deal of useful information about what metamorphic rock is, how it is formed and also shows many examples of the multiple kinds of metamorphic rock.

Metamorphic Rock Study Booklet

This is a small study booklet that shows a great deal of useful information about what metamorphic rock is, how it is formed and also shows many examples of the multiple kinds of metamorphic rock.

Examples of Igneous Rocks | Igneous Sedimentary And Metamorphic Rock Examples

Examples of Igneous Rocks | Igneous Sedimentary And Metamorphic Rock Examples

Assignment: Metamorphic Rocks Lab  Resources: pp. 108–116 of Geoscience Laboratory and Appendixes K & L  Identify and classify the rock examples in Appendix K.  Answer the Appendix L questions from your lab book.… (More)

Assignment: Metamorphic Rocks Lab  Resources: pp. 108–116 of Geoscience Laboratory and Appendixes K & L  Identify and classify the rock examples in Appendix K.  Answer the Appendix L questions from your lab book.… (More)

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