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Final reviewEESC111 > Chap 10 > Flashcards

Chap 10 Flashcards

1
Q

Drainage basin

A

total area drained by a stream and its tributaries

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2
Q

Divide

A

A ridge separating adjacent drainage basins

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3
Q

Continental Divide

A

A divide separating streamins flowing into different ocean or sea

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4
Q

Dendritic Drainage pattern (dp)

A

resembles tree branches or veins in a leave

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5
Q

Radial (dp)

A

A number of streams originate on a mountain and flow outward

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6
Q

Rectangular

A

Tribuatries join one another at right angles

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7
Q

Trellis

A

Parallel main streams with short tributaries at right angles

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8
Q

Stream Velocity

A

Distance time

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9
Q

Stream gradient

A

Vertical drop/horizontal distance

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10
Q

Stream discharge

A

Volume of water that flows past a given point i a unit of time

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11
Q

Sediment is eroded by

A

Hydraulic action
Solution
Abrasion

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12
Q

Bed load

A

Particles are transported on or directley above the stream bed
a traction
b saltation

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13
Q

Suspended load

A

Particles light enough to remain lifted above the bottom by water turbulence

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14
Q

Dissolved load

A

Ions from chemical weathering, that are carried in solution by a stream.

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15
Q

Braided Streams

A

Interconnected channels and mid channel bars

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16
Q

Meander

A

A pronounced sinuous curves along a streams course

17
Q

Flood plains

A

Flat land on either side of stream channel

18
Q

Deltas

A

Form where streams flow into a standing body of water

19
Q

Alluvial fan

A

Formed where a stream slows down rapidly from canyon to flat plain

20
Q

Downcutting

A

the process of deepening a valley by erosion of stream bed

21
Q

Base Level:

A

The limit of downcutting (limit that a river bed can be eroded)

22
Q

Ultimate base level

A

Sea level

23
Q

Stream terraces

A

step like landforms found above a stream and its floodplain, can be caused by rapid uplift drops in base level or climate changes

24
Q

Graded stream

A

A balance between transporting capacity and the sediment supply is achieved
Streams that receive and carry away equal amounts of sediment.

Final reviewEESC111 (7 decks)

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