last information Flashcards

(52 cards)

1
Q

landforms created by solution and redeposition of calcium carbonate or subsurface water

A

karst landforms

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2
Q

a type of erosional karst landform

A

sinkhole, collapse and solution

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3
Q

a type of depositional landform; formed on ceiling of cave from evaporated water

A

stalactites

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4
Q

formed on ground of cave

A

stalagmites

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5
Q

land between channels in a stream

A

interfluve

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6
Q

separates one drainage area from another

A

drainage divide

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7
Q

where river runoff drains

A

drainage basin

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8
Q

drainage density formula

A

total length of all channels/ drainage area

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9
Q

spacial arrangement of drainage

A

drainage patterns

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10
Q

positive kinetic energy creates…

A

more erosion, less deposition

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11
Q

negative kinetic energy creates…

A

less erosion, more deposition

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12
Q

chemical removal

A

corrosion

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13
Q

physical removal of bedrock by impact of particles moving along channel and sides of beds

A

abrasion

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14
Q

erosion by impact of force of flowing water

A

hydraulic action

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15
Q

erosion of smaller rocks within water

A

attrition

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16
Q

dissolves particles in water

A

solution

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17
Q

tiny particles suspended in water

A

suspension

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18
Q

too big to be suspended, bounce along bottom of river

A

saltation

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19
Q

dragged along bed; too large to bounce

A

traction

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20
Q

sediments carried by a stream

A

stream load

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21
Q

maximum particles that a stream can transport

A

stream competence

22
Q

total amount of load a stream can move

A

stream capacity

23
Q

fluvial deposits

24
Q

extensive, low-gradient land areas that are inundated during floods

25
dominates in upper course of streams
erosion
26
dominates in lower course of streams
deposition
27
created by an abandoned meandering river channel
oxbow lake
28
glaciers can help understand...
01) present terrain 02) nature of past climates 03) potential impacts of ongoing environmental change
29
glaciers must be on...
land
30
glaciers that exist in high elevations
alpine glaciers
31
glaciers in cold climates
continental glaciers
32
sliding due to melting at the base of a glacier
basal sliding
33
cannot be sorted like alluvium, and deposits in bigger and differing sediments
till
34
interaction between latitude and elevation
equilibrium line
35
top of an alpine glacier
cirque headwall
36
bottom of an alpine glacier
terminus
37
linear scratches, gouges, grooves
striations
38
assymetric bedrock formations
Rouches moutonnées
39
direction of sliding of alpine glaciers
downslope
40
direction of sliding of continental glaciers
center-out
41
where are 96% of glaciers located
greenland and antarctica
42
when weight of ice is removed, land elevation rises
isostatic rebound
43
percentage of freshwater is located in glaciers
70%
44
braided streams are associated with what conditions?
steep slopes and abundance of course sediment
45
land surface drained by a stream system is called a
drainage basin
46
what course do oxbow lakes occur in?
lower course
47
ablation includes which three and not the other?
sublimation, melting, and calving. NOT EVAPORATION
48
role of glaciers
climate indication, long term storage of freshwater, record of past climates
49
upper course takes what shape in erosion?
V
50
waterfalls are located in which course
upper
51
floodplain, levees, and oxbow lakes are located at which course?
lower
52