目前,关于金伯利岩的起源主要存在两种观点。一种观点认为,它源自古老的深部地幔区域;另一种观点则主张,它是由浅部对流地幔在热点或板块构造作用下部分熔融形成的。这两种观点各执一词,相关的研究证据也是纷繁复杂、莫衷一是。例如,从地球化学记录来看,一些长寿命放射性同位素系统显示金伯利岩可能源自深部地幔,但短寿命同位素系统的证据却并不完全支持这一结论。此前对金伯利岩中 He 和 Ne ...
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