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The properties that geologists use to identify rocks include whattwo things? |
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The color of a rock indicates the _______ that it contains. |
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Is a rocks color ALWAYS a reliable source to identify it by? |
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Is a rocks color ALWAYS a reliable source to identify it by? |
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Definition
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What is the best way to identify rocks by? |
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Definition
The size of its crystals, and other particles that it contains. |
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What makes up a rocks TEXTURE? |
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Definition
Size, shape, and arrangement of its crystals. |
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What does a rocks texture reveal? |
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Definition
What the rock is made from and how and where it formed. |
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What are the three types of major rocks? |
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Definition
Metamorphic, sedimentary, and igneous. |
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When do igneous rocks form? |
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Definition
When molten material cools and solidifies either inside earth or at the surface. |
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Are instrusive and extrusive rocks the same. If not how are they different? |
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Definition
No. Differences in texture and they are formed differently. |
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Define Instrusive rocks:? |
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Definition
Rocks that cool slowly underground allowing theyre crystals to grow large. |
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Definition
Igneous Rocks that cool very quickly at the surface. |
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Do crystals of ignoeus rocks grow quickly or slowly, BEFORE they cool? |
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A ignoeus rocks color gives a clue to its mineral what? |
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What process makes sedimentary rocks? |
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Definition
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Rivers carry this into the ocean:? |
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Definition
Mud, sand, minerals, and all of the above in a dissolved form. |
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Does more or less pressure come when more sediment is put into a rock? |
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Definition
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What is formed when minerals seep into close spaces between particles? |
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Definition
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What are the 3 types of sedeimentary rocks? |
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Definition
CLASTIC*CHEMICAL*AND ORGANIC |
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What holds together the fragments in clastic rocks? |
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Definition
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How are clastic rocks classified? |
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Definition
By hte size of their fragments. |
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What is it called if the rock contains rocks and pebbles? |
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Other rocks are made up of (SMALLER/LARGER) particles. Choose one. |
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What is sediment made from? |
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What is sediment called when primarily made of mud? |
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How do Chemical rocks form? |
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Definition
When minerals precipitate. |
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Term
Where are the minerals that have melted carry away to? |
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Definition
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What process continues until minerals are then put to the ocean floor? |
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Definition
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What is a common type of limestone formation? |
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Definition
When Calcium precipitates into the ocean. |
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Can cheical rocks form on land? |
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Definition
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Name the most common US basin that has large salt flats. |
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What kind of rocks form as a result of an organic process? |
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Definition
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What animals extract carbonate into shells? |
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Definition
Marine life such as CORAL, CLAMS, and MUSSELS. |
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Term
Where do the shells and skeletons of dead animals go? |
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Definition
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Organic limestone isnt a common sedimentary rock. TRUE or FALSE |
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Definition
FALSE!!!! o.k. i went a little overboard with the !'s |
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Term
What does metamorphic mean and what language is it from? |
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Definition
Greek: meaning, "Changing Form" |
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Term
What do geologists call Metamorhic occurences? |
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Definition
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What three things make a metamorphic rock form? |
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Definition
Heat, Pressure, and Chemical Reactions. |
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Could a metamorphic rock have started another type of rock? |
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Definition
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What can metamorphism result as? |
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Definition
In a rock with a mineral content that is different than that of the original rock. |
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How does the metamorphic process begin? |
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Definition
When heat deep inside earth allows the mineral to recrystallize and small crystals to enlarge. |
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