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Earth Science > Rocks > Flashcards

Rocks Flashcards

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1
Q

The lithosphere extends down to ______ km

A

100

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2
Q

Naturally occurring aggregate or combination of minerals and mineraloids

A

Rocks

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3
Q

Rocks are processed deep in the surface through the ______

A

Rock cycle

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4
Q

Rocks formed through the cooling of magma or lava

A

Igneous

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5
Q

Igneous rocks formed through the slow cooling of magma

A

Plutonic rocks/intrusive rocks

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6
Q

Rocks formed from the fast cooling lava in the surface

A

Volcanic/extrusive rocks

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7
Q

Particles erupted from explosive volcanic eruptions

A

Pyroclastic flows

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8
Q

Rocks accumulated in the surface due to weathering and erosion

A

Sedimentary Rocks

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9
Q

Process by which materials solidified into rocks are called _______.

A

Lithification

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10
Q

Sedimentary rocks in the earth’s surface are accumulated via ________.

A

Deposition

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11
Q

Formed from the exposure of sedimentary rocks or igneous rocks to high pressure, temperature, or both

A

Metamorphic rocks

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12
Q

Refers to size, shape and arrangement of the rock

A

Texture

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13
Q

Rock 1: rocks that are small and tiny to identify

A

Aphanitic rocks

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14
Q

Rocks 2: grains that are large to see anf identify

A

Phaneritic

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15
Q

If the grain size is larger than 1/6 nm, then the rock is _________

A

Phaneritic

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16
Q

If the grain size is smaller than 1/6 nm, then the rock is __________.

A

Aphanitic

17
Q

____________ are naturally occurring, inorganic, homogenous solids, definite chemical composition, and in crystalline pattern

A

Minerals

18
Q

Quality of light to the rock’s surface

A

Luster

19
Q

Caused by absorption, or lack thereof of visible light

A

Color

20
Q

Color of a powdered mineral when rubbed to a surface

A

Streak

21
Q

Ability to resist scratching

A

Hardness

22
Q

A scale used to determine the hardness of a mineral.

A

Mohs hardness scale (1-10)

23
Q

Tendency of a mineral to split along planes of weakness

A

Cleavage

24
Q

Measure of relative density of a mineral.

A

Specific gravity

25
Q

S.G = mass of mineral/mass of equal volume of water

A

Specific Gravity

Earth Science (8 decks)

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