Deep Diamond Mysteries
Deep Diamond Mysteries
复制标题
钻石之谜
DOI：
10.1126/science.1063295
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发表时间：
2001
期刊：
影响因子：
56.9
通讯作者：
M. Borzdov
中科院分区：
文献类型：
--
作者：
M. Borzdov
地幔过渡带与下地幔的分界线在660 km处一直是争议的焦点，特别是关于对流是否涉及整个地幔或以660 km为分界线分层的问题。从她的角度来看，
McCammon
解释了来自下地幔顶部的钻石中的微小内含物如何帮助解决这些争议。深层钻石有利于混合模型，其中上地幔和下地幔之间发生有限的混合，但化学不均匀性被保留。
The boundary at 660 km that separates the mantle transition zone from the lower mantle has been a focus of controversy, in particular regarding the question whether convection involves the whole mantle or is layered with a boundary at 660 km. In her Perspective,
McCammon
explains how tiny inclusions in diamonds from the top of the lower mantle are helping to resolve these controversies. The deep diamonds favor a hybrid model where limited mixing occurs between the upper and lower mantle, but chemical inhomogeneities are preserved.