Question

sediments are not deposited on the mouth of Amazon river

Answer 1

Sediment transport is highly dynamic in the Amazon River because of fluctuating river levels and vast floodplains. The highest sediment concentrations occur during the rising-water period. Because it takes river water at least one month to flow from the Andes to the Atlantic, sediment loads in much of the Amazon River are relatively high for a few weeks after the main rainy season in the west. Perhaps 30 percent of Amazon River water flows through the floodplains before reentering the main channel and at which time 80% of their sediments is deposited.




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