Namibia, Brazil, Canada, and Russia are all associated with diamond deposits. Which country is known for possibly the largest marine diamond deposits?

Namibia, Brazil, Canada, and Russia are all associated with diamond deposits. Which country is known for possibly the largest marine diamond deposits?

• A. Namibia
• B. Brazil
• C. Canada
• D. Russia

Answer: (A)

Diamonds in marine deposits come from diamonds eroded inland, carried by rivers to the coast, where ocean currents and beach action concentrate the heavy mineral grains in shallow seabed sands. Over time, these offshore sands on the continental shelf become a sizable reservoir that mining vessels can access and extract. Namibia’s coast has one of the longest, richest, and most productive marine diamond fields in the world. The diamonds carried to the Atlantic by strong coastal currents settle in offshore sands, forming vast offshore deposits that have supported extensive commercial mining. This combination of vastness and continued productivity makes Namibian marine deposits notable as among the largest known marine diamond resources. Other countries on the list are renowned for diamonds—often from terrestrial pipes or Arctic offshore—but they aren’t as closely associated with the scale of marine diamond deposits as Namibia.

Diamonds in marine deposits come from diamonds eroded inland, carried by rivers to the coast, where ocean currents and beach action concentrate the heavy mineral grains in shallow seabed sands. Over time, these offshore sands on the continental shelf become a sizable reservoir that mining vessels can access and extract.

Namibia’s coast has one of the longest, richest, and most productive marine diamond fields in the world. The diamonds carried to the Atlantic by strong coastal currents settle in offshore sands, forming vast offshore deposits that have supported extensive commercial mining. This combination of vastness and continued productivity makes Namibian marine deposits notable as among the largest known marine diamond resources.

Other countries on the list are renowned for diamonds—often from terrestrial pipes or Arctic offshore—but they aren’t as closely associated with the scale of marine diamond deposits as Namibia.