section 4 ch. 8 vocab Flashcards
amount of sediment a river can carry
load
very small particles (minerals) dissolved in water
solution
clay, silt, and fine sands are kept from settling in the water which makes the water look muddy
suspension
sediments which roll along the bottom of the river because they’re too heavy to be carried
bed load
volume of water which passes a point in a given amount of time (measured in m to the third power/s)
discharge
fast moving water, rapids, waterfalls, straight sections of river
immature river
slower moving water, meanders, oxbow lakes
mature river
Large mass of ice that moves over land slowly
glacier
covers an entire continent near the poles.
They move outward from the center.
Cover Antarctica and much of Greenland
continental glacier
covers the floor of a valley between 2 mountains
Smaller than continental glaciers but very long
Can move down the valley at a rate of several centimeters to meters per day.
Form when more snow falls than melts
valley glacier
when a valley glacier flows several kilometers per year
surge
picking up rocks as the glacier moves over land
plucking
grinding away at rock
abrasion
long, parallel scratches in the bedrock caused by the rock carried by the glacier
striations
a semicircular basin formed at the head of the glacier formed by frost action
cirques