Metamorphic Rocks

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Metamorphic Rocks

• change

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I. Agents of Metamorphism
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 Agents of Metamorphism

• A.  Heat
• B.   Pressure
• C. Chemically Active Fluids

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A mylonite formed from dynamic metamorphism
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Metamorphic Rock Types A.  Foliated B. Non
Foliated
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A.  Foliated
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A.  FoliatedFoliated rocks require heat,
pressure, and Chemically active fluids.
Parent Rock gtgtgtgtgtgtgtgt Metamorphic Rock
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A.  FoliatedFoliated rocks require heat,
pressure, and Chemically active fluids.
Parent Rock gtgtgtgtgtgtgtgt Metamorphic
Rock Granite.
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A.  FoliatedFoliated rocks require heat,
pressure, and Chemically active fluids.
Parent Rock gtgtgtgtgtgtgtgt Metamorphic
Rock Granite.Gneiss
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A.  Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Shale gtgtgtgtgtgtgtgt
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A.  Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Shale gtgtgtgtgtgtgtgt Slate
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A.  Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Shale gtgtgtgtgtgtgtgt SlatePhyllite
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A.  Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Shale gtgtgtgtgtgtgtgt SlatePhyllite..Schist
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A.  Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Shale gtgtgtgtgtgtgtgt SlatePhyllite..Schist..Gniess
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A.  Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Low GradeHigh Grade
Shale gtgtgtgtgtgtgtgt SlatePhyllite..Schist..Gniess
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A.  Foliated
Low GradeHigh Grade
SlatePhyllite..Schist..Gniess
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B.  Non FoliatedNeed either Heat and Chemically
active fluids, or High Pressure andCAF
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Limestone gtgtgtgtgtgtgtgt
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B  Non Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Limestone gtgtgtgtgtgtgtgt Marble
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B.  Non Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Sandstone gtgtgtgtgtgtgtgt
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B.  Non Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Sandstone gtgtgtgtgtgtgtgt Quartzite
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B.  Non Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Mafic Igneous Rock gtgtgtgtgtgtgtgt
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B.  Non Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Mafic Igneous Rock gtgtgtgtgtgt Soapstone,
Amphibolite, or Greenstone
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B.  Non Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
Bituminous gtgtgtgtgtgtgtgt Coal
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Parent Metamorphoc Rock gtgtgtgtgtgtgtgt Rock
Bituminous gtgtgtgtgtgtgtgt Anthracite Coal
Coal
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B.  Non Foliated
Parent Metamorphic Rock gtgtgtgtgtgtgtgt Rock
ONLY HEAT AND CAF Shale . Hornfels
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The Rock Cycle