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Science > Geology > Flashcards

Geology Flashcards

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1
Q

Magma

A

A very hot substance that is below the surface

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2
Q

Lava

A

Magma that has hit the surface

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3
Q

Extrusive

A

Rocks that have escaped out of the volcano and have formed in the air or ground

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4
Q

Intrusive

A

Rocks that did not have enough energy to escape the volcano and formed inside

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5
Q

Igneous

A

A rock that is solidified from lava or magma

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6
Q

Mineral

A

A substance that are formed into rocks

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7
Q

Lithosphere

A

The first layer of the earth

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8
Q

Asthenosphere

A

The second layer of the earth

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9
Q

Crystal

A

A solid material

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10
Q

Sedimentary Rocks

A

Rock that has formed through the deposition and solidification of sediment, especially

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11
Q

Erosian

A

the process of eroding or being eroded by wind, water, or other natural agents.

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12
Q

Sandstone

A

a sedimentary rock consisting of sand or quartz grains cemented together

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13
Q

Shale

A

sedimentary rock that formed from mud or clay

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14
Q

Siltstone

A

a sedimentary rock consisting of consolidated silt.

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15
Q

Limestone

A

a hard sedimentary rock used mostly in making the benchtops

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16
Q

Coal

A

a black or dark brown rock consisting chiefly of carbonized plant matter found mainly in underground seams and used as fuel.

17
Q

Rock Salt

A

common salt occurring naturally as a mineral

18
Q

Metamorphic Rocks

A

A rock that is changed because it has been exposed to heat and pressure

19
Q

Metamorphism

A

Is the change of minerals that have been effected by heat and pressure

20
Q

Ore

A

A naturally occurring solid material

21
Q

Open-Cut Mining

A

mining technique that is above ground

22
Q

Underground Mining

A

Mining technique that is below the ground

23
Q

Environmental Impact Statement

A

Is a document required by the National Environmental Policy Act (NEPA) for certain actions

Science (11 decks)

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