Extensive deposits of windblown silt are called?
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loess
Which of the following is a coarse, gravelly ground
surface that results from the
removal of fine
-
grained particles by wind erosion?
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desert pavement
,Fossils are most common in what rock types?
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sedimentary
A mineral formed with 1000 atoms of a radioactive parent element, but contains only
250 radioactive parent atoms today. If the half
-
life of the radioactive element is one
million years, how old is the mineral?
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2 million years old
A geologist finds a sedimentary rock outcrop with no layering and particles ranging in
size from boulders to clays This deposit is mostly likely________.
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a glacial moraine
The most common Precambrian fossils are ________, layered mounds of calcium
carbonate.
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, stromatolites
When deposited, layers of sediment extend laterally in all directions. What
principle/law of relative dating is this?
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principle of lateral continuity
Which of the following sequences shows a decrease in air content?
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snow, granular ice, firn, glacial ice
Each continent contains large "core areas" of Precambrian rocks referred to as________.
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cratons
Which of the following terms describes an accumulation of rocky, sandy, or clayey
material deposited at the end of a glacier?
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Give this one a try later!
loess
Which of the following is a coarse, gravelly ground
surface that results from the
removal of fine
-
grained particles by wind erosion?
Give this one a try later!
desert pavement
,Fossils are most common in what rock types?
Give this one a try later!
sedimentary
A mineral formed with 1000 atoms of a radioactive parent element, but contains only
250 radioactive parent atoms today. If the half
-
life of the radioactive element is one
million years, how old is the mineral?
Give this one a try later!
2 million years old
A geologist finds a sedimentary rock outcrop with no layering and particles ranging in
size from boulders to clays This deposit is mostly likely________.
Give this one a try later!
a glacial moraine
The most common Precambrian fossils are ________, layered mounds of calcium
carbonate.
Give this one a try later!
, stromatolites
When deposited, layers of sediment extend laterally in all directions. What
principle/law of relative dating is this?
Give this one a try later!
principle of lateral continuity
Which of the following sequences shows a decrease in air content?
Give this one a try later!
snow, granular ice, firn, glacial ice
Each continent contains large "core areas" of Precambrian rocks referred to as________.
Give this one a try later!
cratons
Which of the following terms describes an accumulation of rocky, sandy, or clayey
material deposited at the end of a glacier?
Give this one a try later!
