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20 Cards in this Set
- Front
- Back
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stream-gauging system
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measures the velocity of the stream
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streams are faster where? why?
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in the top middle, cuz it's deeper
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thalwag
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fastest point in a meandering river
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cut bank
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outer curve of a meander or erosion
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pot holes are formed by
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eddies and whirlpools
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dissolved loads
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-dissolved ions
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suspended load
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cloudy water, tiny particles
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bedload
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large objects being dragged along the bottom of the stream
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saltation
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little rocks that knock each other up and down because of the movement of the stream
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eons
oldest to youngest |
Archaen
Proterozoic Phanerozoic |
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eras
oldest to youngest |
Paleozoic
Mesozoic Cenozoic |
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periods of the Paleozoic
o to y |
Cambrian
Ordovician Silurian Devonian Carboniferous Permian |
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periods of the Mesozoic
o to y |
Triassic
Jurassic Cretaceous |
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periods of the Cenozoic
o to y |
Tertiary
Quaternary |
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Epochs of the Tertiary
o to y |
Paleocene
Eocene Oligocene Miocene Pilocene |
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Epochs of the Quaternary
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Pleistocene
Holocene |
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What is the age of the Earth?
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4.6 billion
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Paleozoic
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3.8 billion-2.5 billion
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Mesozoic
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2.5 billion - 542 M
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Phanerozoic
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542 M - now
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