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21 Cards in this Set
- Front
- Back
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Igneous Rocks |
Form from magma or lava |
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Sedimentary Rocks |
Form from pre-existing rock or solution |
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Metamorphic Rocks |
Rocks that are changed from heat and/or pressure (basically a sedimentary rock that's been heated) |
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Igneous, Sedimentary or Igneous Rocks: Any of these rocks can turn into... |
Any of these rocks can turn into any other of these rocks |
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Rock Forming Silicates |
Olivine, Pyroxene/Augite, Amphibole/Hornblende, Biotite, Muscovite, Plagioclase Feldspar (Calcium & Sodium), Potassium Feldspar (or Orthoclase Feldspar), Quartz |
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Igneous Rock Classifications |
Texture or Grain Size & Composition |
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Types of Texture Sizes |
Intrusive (coarse-grained) --If you can see the minerals in a rock, it's coarse-grained Extrusive (fine-grained) --If the rock looks like all one color, it's fine-grained |
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Intrusive, also referred to as: |
Plutonic - cools slow, coarse grain mineral size NOTE: Pluton refers to beneath the surface |
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Extrusive, also referred to as: |
Volcanic - cools fast, fine grain mineral size |
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If a term ends in "ic", what does it refer to? |
Composition |
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Mineral Composition Classifications |
--Granitic (Felsic) - composed of light colored silicates - SODIUM RICH --Andesitic (Intermediate) - composition between granitic and basaltic --Basaltic (Mafic) - composed of substantial amount of dark colored minerals - CALCIUM RICH |
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Granitic or Felsic (Name Two Common Rocks) |
Granite (Intrusive - coarse-grained) Rhyolite (Extrusive - fine-grained) |
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Andesitic (Name Two Common Rocks) |
Diorite (Intrusive - coarse-grained) Andesite (Extrusive - fine-grained) |
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Mafic or Basaltic (Name Two Common Rocks) |
Gabbro (Intrusive - coarse-grained) Basalt (Extrusive - fine-grained) |
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Felsic - List all possible minerals in rock type |
Potassium Feldspar, Muscovite Mica, Quartz, Plagioclase Feldspar, Biotite Mica & Amphibole NOTE: Know how to use Bowen's Reaction Series |
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Andesitic - List all possible minerals in rock type |
Pyroxene, Amphibole, Biotite Mica & Plagioclase Feldspar NOTE: Know how to use Bowen's Reaction Series |
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Mafic - List all possible minerals in rock type |
Olvine, Pyroxene, Amphibole, Biotite Mica & Plagioclase Feldspar NOTE: Know how to use Bowen's Reaction Series |
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What are the four different type of Texture Classifications? |
Coarse-grained, Fine-grained, Porphyritic and Glassy |
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Name two rocks associated with "Glassy" classification |
Obsidian (compact glass) Pumice (frothy glass) |
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This type does NOT have any minerals in it...It is a rock |
Glassy or Glass |
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What does Vesicular refer to? |
Glassy material, contains holes or voids formed by air (Ex: Glass) |
