Test 2 Flashcards

(34 cards)

0
Q

Competence

A

The maximum particle size a stream can transport, determined by velocity

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1
Q

Capacity

A

The maximum load a stream can transport

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2
Q

Porosity

A

Percent of pore spaces/number of holes. Tells how much water can be stored

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3
Q

Permeability

A

Ability to transmit water & how easily it will flow through

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4
Q

3 parts to milankovitch cycle?

A

Eccentricity: the shape of the earths orbit, cycle 100,000 years.
Obliquity: the tilt of the earths axis.
Precession: the wobbling of the earths axis.

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5
Q

Alpine glaciers

A

Shape the mountains. Otherwise known as valley glaciers.

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6
Q

Continental glaciers

A

A continent is covered in ice

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7
Q

Erosion

A

the physical removal of material

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8
Q

Weathering

A

Physical or chemical breaking down of a rock

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9
Q

When ____ is applied to rocks, they can deform in an elastic or plastic manner, or they may rupture by brittle fracture. Affected by material, temperature, pressure, and rate.

A

stress

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10
Q

A ________ is any feature produced by deformation of rocks.

A

geologic structure

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11
Q

_____ form when rocks are compressed.

A

Folds

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12
Q

A ________ is a fracture along which rock on one side has moved relative to rock on the other side.

A

fault

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13
Q

_______ are usually caused when rocks are pulled apart.

A

Normal faults

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14
Q

_____ and ______ faults are caused by compression.

A

Reverse & thrust

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15
Q

___________ form where blocks of crust slip horizontally past each other along vertical fractures.

A

Strike-slip faults

16
Q

A ________ is a fracture in rock where the rock has not been displaced.

17
Q

Mountains form when the crust thickens and rises ______.

A

isostatically.

18
Q

Type of arc that forms when two converging plates carry oceanic crust. (volcanic)

19
Q

If one plate carries continental crust and one plate carries oceanic crust, then a(n) _______ forms.

A

Andean margin

20
Q

Andean margins contain rocks of _______ and sedimentary rocks deposited in a ____________.

A

subduction complex, forearc basin

21
Q

Andean margins are dominated by _______ and ________.

A

granitic plutons, andesitic volcanoes.

22
Q

When two plates carrying continental crust converge, an Andean margin develops first, as oceanic crust between the two continental masses is subducted. When the two continents later combine, one continent is ___________ between the other. Result examples = Himalayan Mtns

23
Q

Fold arching upward

24
Fold arching downward
syncline
25
Sides of a fold are called _______.
limbs
26
If a fold has tilted beyond the perpendicular, it is ______.
overturned
27
A circular or elliptical anticline structure (shaped like an upside down cereal bowl) is called a _____.
dome
28
Only about ____ of the Earth's water is fresh. The rest is saltwater and glacial ice.
0.63
29
The constant circulation of water among the sea, land, the biosphere, and the atmosphere is called _____.
the hyrdologic cycle, or water cycle
30
Most water returns to the _____ as precipitation.
ocean
31
Part of the precipitation that falls on the continents returns to the sea via ______ and moving ground water.
runoff
32
The other part of precipitation returns to the atmosphere via evaporation and _______.
transpiration
33
The hyrdologic cycle describes the movement of water and is ________.
the movement of energy from one part of the globe to another.