Long Quiz 2_Geosphere Flashcards

(36 cards)

1
Q

Study of the solid earth that includes the continental and oceanic crust as well as various layers of earth

A

Geosphere

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2
Q

Geologic layers

A

Crust
Mantle
Lithosphere
Asthenosphere
Core

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3
Q

2 types of crust

A

Continental crust
Oceanic crust

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4
Q

The rocky outermost and thinnest layer, made of solid rocks and minerals

A

Crust

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5
Q

Types of crust

A

Continental crust
Oceanic crust

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6
Q

Thicker but less dense crust, made mostly of granite

A

Continental crust

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7
Q

Thinner but denser crust, made mostly of basalt

A

Oceanic crust

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8
Q

Continental and oceanic crust = what elements?

A

Cont = SiAl Silicate and Aluminum
Ocea = SiMa Silicate and Magnesium

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9
Q

Most abundant elements in the crust?

A

Oxygen
Silicon
Aluminum

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10
Q

Middle layer of the earth,

A

Mantle

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11
Q

Two divisions of mantle

A

Upper
Lower

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12
Q

Mantle with lithosphere and asthenosphere, rigid and solid

A

Upper mantle

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13
Q

Responsible of tectonic activity

A

Upper mantle

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14
Q

Hotter and denser, much less ductile due to high pressure

A

Lower mantle

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15
Q

Rocky sphere under the upper mantle

A

Lithosphere

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16
Q

Dense and weak sphere of the upper mantle that causes tectonic movement

A

Asthenosphere

17
Q

Hot and dense center of the earth, believed to be mettalic

18
Q

2 parts of the core

A

Inner and outer core

19
Q

Composed of liquid iron and nickel, low viscosity, malleable

20
Q

Hot dense ball of solid iron and nickel, intense pressure and density

21
Q

Layer boundaries

A

Mohorivic discontinuity
Repetti ~
Gutenberg ~
Lehmann ~

22
Q

Types of rocks

A

Sedimentary
Igneous
Metamorphic

23
Q

Formed by years and years of sediment compacting together and becoming hard

24
Q

Study of the layers of the earth

25
Formed by volcanoes
Igneous
26
2 types of igneous rocks
Intrusive or plutonic Extrusive or volcanic
27
Formed by great heat and pressure. Often made from other types of rock combined.
Metamorphic rocks
28
Naturally occuring inorganic solid materials with definitely chemical composition
Minerals
29
Properties of minerals
Color Streak Hardness Cleavage Fracture Crystalline structure Crystal habit Luster Specific gravity Taste
30
Process that deform the earth
Tectonics
31
Plates that move around on top of asthenosphere
Tectonic plate
32
1912 theory by alfred wegener that explained how continents shift position on earths surface
Continental drift
33
Tectonic plate movements
Divergent Convergent Transform Continental-oceanic Oceanic-oceanic
34
Seismic waves
P wave S wave R wave L wave
35
Physical processes which create and modify landforms
Geomorphic processes
36
Geomorphic processes
Exogenous/gradational processes Degradation ~ Aggradation ~ Endogenous ~ Diastrophic ~ Folding Faulting Epeirogenic ~ Volcanism