Igneous and Metamorphic Rocks

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Two Major Divisions • Intrusive igneous rocks - magma that solidifies below the surface of the earth • Extrusive igneous rocks - magma that cools on the surface of the earth • The rock textures are different for each division division.
Texture of Igneous Rocks • Glassy: caused by rapid cooling; no crystals • Pyroclastic: fragments of glass and crystals; volcanic ash and bombs • Aphanitic: microscopic crystals • Phaneritic: macroscopic crystals • Porphyritic: grains of two distinct sizes; can occur in phaneritic or aphanitic matrix
Page 1 and 2: Igneous and Metamorphic Rocks Geolo
Page 3: Magma Compositions • Ultramafic -
Page 7 and 8: Can you y fill in the qquestion mar
Page 9 and 10: Figure 4.3B. Aphanitic texture in r
Page 11 and 12: Figure 4.3D. Pyroclastic texture
Page 13 and 14: Mafic and ultramafic igneous rocks
Page 15 and 16: Rhyolite y -- an extrusive felsic i
Page 17 and 18: Andesite -- an extrusive intermedia
Page 19 and 20: Fig. 4.14: A composite volcano comp
Page 21 and 22: Devil’s Tower, WY, a volcanic nec
Page 24 and 25: WVU Students on a Gabbro Dike in Ma
Page 26 and 27: Origin and Differentiation of Magma
Page 28 and 29: Figure 4.22 - The Temperature of Cr
Page 30 and 31: Figure 3.18 -- The silicon-oxygen t
Page 32 and 33: Igneous Rocks and Plate Tectonics
Page 34 and 35: Types of Convergent Boundaries Ocea
Page 36 and 37: Continental crust is less than 1% o
Page 38: Regionally metamorphosed rocks shot
Page 41 and 42: Metamorphic rocks from Greenland, 3
Page 43 and 44: The Rock Cycle
Page 46 and 47: Metamorphism of a Granite to a Gnei
Page 48 and 49: Foliated rock
Page 50 and 51: Contact Metamorphism Regional Metam
Page 52 and 53: Origin of Metamorphic Rocks • Bel
Page 54 and 55:
Where does the heat come from? •
Page 56 and 57:
Chemically Active Fluids • Metaso
Page 58 and 59:
Chemically y Active Fluids • Seaf
Page 60 and 61:
Kinds of Metamorphic Rocks • Slat
Page 62 and 63:
Phyllite on the left, Slate on the
Page 64 and 65:
Kinds of Metamorphic Rocks •Gneis
Page 66 and 67:
Migmatite -- a high g grade g metam
Page 68 and 69:
Kinds of Metamorphic Rocks • Pare
Page 70 and 71:
Kinds of Metamorphic Rocks • Nonf
Page 72 and 73:
Non-foliated metamorphic rocks: Mar
Page 74 and 75:
Marble -- metamorphosed p limestone
Page 76 and 77:
Fig. 6.13: Parent Rocks and Metamor
Page 78 and 79:
Metamorphic Facies • Defined on t
Page 80 and 81:
Fig. 6.16. Metamorphic facies
Page 82 and 83:
Greenschist on the left, Amphibolit
Page 84 and 85:
Eclogite: l i garnet and d pyroxene
Page 86 and 87:
Metamorphic Rocks and Plate Tectoni
Page 88 and 89:
Figure 6.19 - Metamorphic rocks and
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Igneous and Metamorphic Rocks

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