Question

1. Describe, two different places in which Diamond can be formed

2. Explain, why diamonds can be formed in two very different places

Answer 1

Commercial diamonds are found in Kimberlite and Lamproite. Both of these rocks were formed within the mantle - 150 to 450 kilometers beneath the surface. They originate beneath continental crust rather than oceanic crust. They are generally found in old, more or less stable rock formations known as cratons (the blue areas on the map). Both come to the surface in explosive eruptions, probably triggered by gas or fluid . They typically form “pipes”.

Diamonds are formed deep within the Earth's mantle, and only volcanoes situated on the thickest (and oldest) sections of crust can bring these diamonds to the surface rapidly enough that they do not revert to graphite.

Step-by-step explanation:

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