kimberlite pipe

名词 n.
中文释义

英文释义

名词 n.
  1. A natural volcanic pipe composed of kimberlite, by which geological matter from deep within the Earth can be projected violently to the surface.
    — Because they come up from such depths – up to 200 kilometres down – kimberlite pipes bring up all kinds of things not normally found on or near the surface: a rock called peridotite, crystals of olivine and – just occasionally, in about one pipe in a hundred – diamonds.

词形变化

kimberlite pipes plural
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