Long Quiz 2_Geosphere Flashcards

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

A

Core

18
Q

2 parts of the core

A

Inner and outer core

19
Q

Composed of liquid iron and nickel, low viscosity, malleable

A

Outer core

20
Q

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

A

Inner core

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

A

Sedimentary

24
Q

Study of the layers of the earth

A

Strata

25
Q

Formed by volcanoes

A

Igneous

26
Q

2 types of igneous rocks

A

Intrusive or plutonic
Extrusive or volcanic

27
Q

Formed by great heat and pressure. Often made from other types of rock combined.

A

Metamorphic rocks

28
Q

Naturally occuring inorganic solid materials with definitely chemical composition

A

Minerals

29
Q

Properties of minerals

A

Color
Streak
Hardness
Cleavage
Fracture
Crystalline structure
Crystal habit
Luster
Specific gravity
Taste

30
Q

Process that deform the earth

A

Tectonics

31
Q

Plates that move around on top of asthenosphere

A

Tectonic plate

32
Q

1912 theory by alfred wegener that explained how continents shift position on earths surface

A

Continental drift

33
Q

Tectonic plate movements

A

Divergent
Convergent
Transform
Continental-oceanic
Oceanic-oceanic

34
Q

Seismic waves

A

P wave
S wave
R wave
L wave

35
Q

Physical processes which create and modify landforms

A

Geomorphic processes

36
Q

Geomorphic processes

A

Exogenous/gradational processes
Degradation ~
Aggradation ~
Endogenous ~
Diastrophic ~
Folding
Faulting
Epeirogenic ~
Volcanism