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21 Cards in this Set
- Front
- Back
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Which of the following is true about rocks? |
Most rocks are a mixture of minerals |
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What is a naturally occurring, solid mass of mineral or mineral like matter? |
A rock |
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Which of the following is not considered to be a rock? |
Lava |
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Which of the following is NOT one of the three types of rock? |
Magma |
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The three groups of rocks are classified by? |
How they formed |
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What type of rocks are formed by processes powered by the sun? |
No rocks are formed by energy from the sun |
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Where is the energy source found that droves the processes that form igneous and metamorphic rocks? |
Earth's interior |
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A rock that forms when magma hardens beneath earth's surface is called? |
An extrusive sedimentary rock |
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Which of the following is an example of an extrusive igneous rock |
Rhyolite and andesite |
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A rock that forms from cooling lave is classified as |
Extrusive igneous rock |
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When large masses of magma solidify far below earth's surface they form igneous rocks that have a? |
Coarse grained texture |
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The igneous rock texture that is characterized by two distinctly different crystal sizes is called? |
Porphyritic texture |
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Lava that cools so quickly that ions do not have time to arrange themselves into crystals will form igneous rocks with ? |
A fine grained texture |
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As the rate of cooling of igneous rocks increases the size of the crystals that form? |
Increases |
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Igneous rocks that crystallize from magma and are composed almost entirely of quartz and feldspar have a? |
Granite composition |
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What type of composition does an igneous rock that contains mostly plagioclase feldspar and about 30% dark silicate materials? |
Andesitic |
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Why can 2 igneous have the same minerals buy different names? |
The rocks mat have different textures |
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A conglomerate is a rock that forms as a result of? |
Compaction and cementation |
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Which sedimentary rock would most likely be deposited in a very high energy stream |
Conglomerate |
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A coarse grained rock with angular fragments would be classified as |
Breccia |
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A classic sedimentary Rock with particles that are 1.5 mm in diameter would be classified as |
Sandstone |
