52. Some geologists,however,on the basis of observations concerning mantle xenoliths, argue that the mantle is not layered,but that heterogeneity is created by fluids rich in incompatible elements (elements tending toward liquid rather than solid state)percolating upward and transforming portions of the upper mantle irregularly,according to the vagaries of the fluids pathways. (4+) 版但是,某些地质学家,以对地幔捕虏岩体(xenolith)作的观察为依据,指出地幔并非是分层排列的,相反,地幔的异质性是由那些富含不相容成分的流质构成的,这些成分趋向于流体而非固体的状态,自下而上渗透扩散,并依照这些流质流向的任意性,不规则地将上部地幔的某些部分予以改变。
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