This idea, known as the zonal theory of climate, is more likely to have originated at the time of Aristotle.
2.
(Contribution to ) Economic application of zonal theory of primary deposition ores ( by John Carter Anderson ) : American Institute of Mining and Metallurgy Engineers Transactions, v . 96, p . 22 35.
3.
He used similar biological factors used in explaining plant distribution and established a concentric-zonal theory which included a Central Business District ( CBD ), an area of transition ( invaded by business and migrants ), and area of upper class apartments and several commuter zones and suburbs on the edge of the city.
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