Rocks and Mineral, Rock Formations Flashcards

1
Q

What are rocks?

A

minerals mixed together

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2
Q

What are minerals?

A

naturally occurring w/ definite chemical composition and atomic structure

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3
Q

How do you classify minerals?

A

-Color
-Hardness
-Luster
-Streak
-Cleavage/Fracture

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4
Q

Draw the rock cycle

A

https://www.google.com/url?sa=i&url=http%3A%2F%2Fwww.cotf.edu%2Fete%2Fmodules%2Fmsese%2Fearthsysflr%2Frock.html&psig=AOvVaw2SPBaw5xGKy24y-9hFlFfp&ust=1666945711700000&source=images&cd=vfe&ved=0CAoQjRxqFwoTCPDfx-n-__oCFQAAAAAdAAAAABAN

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5
Q

What are the types of igneous rocks?

A

intrusive - magma cooled slowly -> large crystals
extrusive - magma cooled quickly -> no crystals

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6
Q

What are the types of sedimentary rocks?

A
  1. Clastics - formed by sediments via compacting; no chemical reaction
  2. Bioclastics - w/ organic material (e.g. fossils)
  3. Crystalline - formed when minerals are compacted
    after evaporation and precipitation.
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7
Q

How are metamorphic rocks formed?

A

heat and pressure

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8
Q

What are the forces that drive the rock cycle? Explain each one.

A

solar energy, gravity, radioactive heating

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9
Q

What are the agents of erosion?

A

plants, animals, people

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10
Q

What are the things you should look out for when classifying rocks?

A
  1. Sedimentary - fossils; looks course; composition is visible
  2. Igneous - has crystals; blotchy
  3. Metamorphic - stripes going in 1 direction; pattern
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11
Q

What are the structures in rock formation?

A
  1. Folds: bend upward and downward
  2. Fault: There is a fracture; uneven yung plane
  3. Joints: May fracture; even yung plane
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12
Q

What are the causes of deformation?

A
  1. tensional: rocks pull
  2. compressional: rocks squeeze
  3. shear: slippage/parallel movement
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12
Q

What are the causes of deformation?

A
  1. tensional: rocks pull
  2. compressional: rocks squeeze
  3. shear (faulting): slippage/parallel movement
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13
Q

What are the stages of rock formation?

A

Elastic (strain - reversable) -> Ductile (bend - irreversible) -> Fracture (breaks)

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14
Q

What are the 2 kinds of stresses? How are they different from one another?

A
  1. Confine - uniform stress
  2. Differential - unequal stress -> causes lengthening, folding, fractures, etc.
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