Which term describes a rock that transports diamonds to the surface and is rarer than kimberlite?

Which term describes a rock that transports diamonds to the surface and is rarer than kimberlite?

• A. Lamproite
• B. Kimberlite
• C. KP
• D. Irradiation

Answer: (A)

Diamonds are carried to the surface by deep-origin volcanic rocks that erupt rapidly and host cargo of diamonds as they ascend. Kimberlite is the classic carrier because it forms deep in the mantle and brings diamonds up in fast, volatile-rich eruptions. Lamproite is another diamond-bearing rock, but it’s much rarer than kimberlite. Its distinct, potassium-rich mineralogy and existence in notable but infrequent diamond-bearing pipes (like Argyle) illustrate a similar transport mechanism in geology, just far less commonly. So the term that describes a rock that transports diamonds to the surface and is rarer than kimberlite is lamproite.

Diamonds are carried to the surface by deep-origin volcanic rocks that erupt rapidly and host cargo of diamonds as they ascend. Kimberlite is the classic carrier because it forms deep in the mantle and brings diamonds up in fast, volatile-rich eruptions. Lamproite is another diamond-bearing rock, but it’s much rarer than kimberlite. Its distinct, potassium-rich mineralogy and existence in notable but infrequent diamond-bearing pipes (like Argyle) illustrate a similar transport mechanism in geology, just far less commonly. So the term that describes a rock that transports diamonds to the surface and is rarer than kimberlite is lamproite.