Lamproite is typically found at which position relative to a diamond-bearing pipe?

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Multiple Choice

Lamproite is typically found at which position relative to a diamond-bearing pipe?

Explanation:
Lamproite forms as a later, peripheral intrusion around the main diamond-bearing conduit. In many diamond districts the central pipe (often kimberlite) concentrates diamonds in its core, while lamproite erupts along the outer margins, creating an edge or rim around the central pipe. This border position is driven by differences in magma chemistry and eruption dynamics, so lamproite is typically found at the edge of a diamond-bearing pipe rather than in the center or as surface fill.

Lamproite forms as a later, peripheral intrusion around the main diamond-bearing conduit. In many diamond districts the central pipe (often kimberlite) concentrates diamonds in its core, while lamproite erupts along the outer margins, creating an edge or rim around the central pipe. This border position is driven by differences in magma chemistry and eruption dynamics, so lamproite is typically found at the edge of a diamond-bearing pipe rather than in the center or as surface fill.

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