Metamorphic Rock Hill Science 6. The Rock Cycle Metamorphic Rock Comes from the Greek: –...
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Transcript of Metamorphic Rock Hill Science 6. The Rock Cycle Metamorphic Rock Comes from the Greek: –...
Metamorphic Rock
HillScience 6
The Rock Cycle
Metamorphic Rock
• Comes from the
Greek:
– “meta” – to change
– “morphic” - form
Metamorphic Rocks
• Igneous, sedimentary, and even metamorphic rocks may be transformed by heat, pressure, and/or chemical reactions into metamorphic rocks.
Phyllite- foliated metamorphicBlack Limestone- sedimentary
Metamorphic Rocks
• Metamorphic rocks may change into other kinds of metamorphic rocks.
• Metamorphic rocks may be remelted and become igneous rocks.
Metamorphic Rocks
Metamorphic Rocks
• Foliated – from Latin “folia” meaning leaves as in pages of a book.– Bands or stripes are
visible on the rocks
• Nonfoliated– No bands or stripes
appear on the rock
gneiss
quartzite
Metamorphic Rock
• Foliated Rock – minerals are arranged in stripes, bands, or wavy lines. The mineral crystals are usually flat and line up with each other.
gneiss slate
Metamorphic Rock
• Nonfoliated Metamorphic Rock-– Made of only a few minerals which are not arranged in
bands or stripes.
quartzite hornfels
Metamorphic RockFoliated or Nonfoliated?
granite gneiss
shale slate
Metamorphic RockFoliated or Nonfoliated?
limestone marble
sandstone quartzite
Metamorphic Rock