Which term refers to a secondary diamond deposit transported by water to a distant area?

Which term refers to a secondary diamond deposit transported by water to a distant area?

• A. Alluvial deposit
• B. Marine deposit
• C. Kimberlite
• D. Primary source

Answer: (B)

Diamonds that are moved from their original rock by water and end up far from the source are described as secondary deposits, specifically placer deposits. When those diamonds are carried by ocean currents and settle on the seafloor or along coastlines, the term marine deposit is used. This reflects transport over long distances by sea, resulting in a deposit distant from the primary source rock. Alluvial deposits are also secondary placer deposits, but they form from river transport and are typically located along river channels closer to the source, not necessarily far away. The primary source is the original rock (kimberlite) where diamonds form, so it isn’t a secondary deposit. So, the term that best fits a secondary diamond deposit transported by water to a distant area is marine deposit.

Diamonds that are moved from their original rock by water and end up far from the source are described as secondary deposits, specifically placer deposits. When those diamonds are carried by ocean currents and settle on the seafloor or along coastlines, the term marine deposit is used. This reflects transport over long distances by sea, resulting in a deposit distant from the primary source rock.

Alluvial deposits are also secondary placer deposits, but they form from river transport and are typically located along river channels closer to the source, not necessarily far away. The primary source is the original rock (kimberlite) where diamonds form, so it isn’t a secondary deposit.

So, the term that best fits a secondary diamond deposit transported by water to a distant area is marine deposit.