Which term describes a secondary diamond deposit carried by rivers or streams to the ocean floor or shoreline?

Which term describes a secondary diamond deposit carried by rivers or streams to the ocean floor or shoreline?

• A. Marine deposit
• B. Alluvial deposit
• C. Kimberlite
• D. Sedimentary deposit

Answer: (A)

Secondary diamond deposits come from diamonds that have been freed from their original host rock and moved by water to new environments. When rivers and streams transport diamonds all the way to the sea and they settle on the ocean floor or along the shoreline, they form a marine deposit. This term specifically describes diamonds in a marine setting, distinguishing it from other secondary environments like alluvial deposits, which form in river channels and floodplains. Kimberlite refers to the primary source rock that originally hosts diamonds, not where they end up after transport. Sedimentary deposit is too broad and doesn’t pinpoint the transport path or final environment for diamonds.

Secondary diamond deposits come from diamonds that have been freed from their original host rock and moved by water to new environments. When rivers and streams transport diamonds all the way to the sea and they settle on the ocean floor or along the shoreline, they form a marine deposit. This term specifically describes diamonds in a marine setting, distinguishing it from other secondary environments like alluvial deposits, which form in river channels and floodplains. Kimberlite refers to the primary source rock that originally hosts diamonds, not where they end up after transport. Sedimentary deposit is too broad and doesn’t pinpoint the transport path or final environment for diamonds.