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Banded iron formations are composed of alternating light and dark bands of chert.
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What is chert?</h3>
- Banded iron formations are made up of alternating light and dark chert bands.
- Chert is a sedimentary rock that forms in a variety of ways and is almost entirely composed of silica (SiO 2).
- When the siliceous skeletons of marine plankton are dissolved during diagenesis, silica precipitates from the resulting solution, biochemical chert is formed.
- Chert layers, which occur as irregular beds or rounded nodules within limestone formations, are common in eastern Kansas.
- Because it is harder than limestone, chert is more resistant to erosion.
- The Flint Hills' chert-topped hills are the result of the landscape's uneven erosion.
Therefore, banded iron formations are composed of alternating light and dark bands of chert.
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Carrying capacity is the theoretical maximum rate of population growth. It is the maximum population size that the environment can sustain. This means that it is the maximum number of individuals of given species that the evironment's resources can sustain. It is the population size that can have enough water, food, habitat and other resources in order to survive and live.
