Ophiolites, which represent segments of oceanic lithosphere obducted onto the continental crust, provide an important window into processes such as continental rifting, mantle melting, asthenospheric upwelling and cooling of oceanic lithosphere. Traditionally, research has focused on crustal sections of ophiolites. However, there is a growing recognition that mantle sections contain important information on ophiolite formation and crustal recycling. In this Review, we outline the importance of chromium spinel and associated mineral inclusions for recording the tectonic setting and past histories of ophiolitic mantle sections, with a focus on the insights they provide into deep crustal recycling. In particular, the presence of ultra-high-pressure mineral inclusions, such as microdiamonds, metal alloys, Mn silicates and coesites, in podiform chromitites and other ophiolitic mantle rocks offer evidence of deep and reduced formation conditions. The composition of ultra-high-pressure minerals, and especially the light carbon isotope composition of ophiolite-hosted diamonds, indicates a contribution of recycled crustal material to the mantle portions of ophiolites. The details of crustal material transport through the mantle remain a subject of debate and ongoing research. A global investigation of high-pressure minerals in ophiolitic peridotites and chromitites should be a target of future research to help clarify understanding of deep crustal recycling.

蛇纹岩代表了被绑到大陆壳上的海洋岩石圈的各个部分，为深入了解诸如大陆裂谷，地幔融化，软流圈上升和海洋岩石圈冷却等过程提供了重要的窗口。传统上，研究集中于蛇绿岩的地壳部分。但是，人们越来越认识到地幔剖面包含有关蛇绿岩形成和地壳再循环的重要信息。在这篇评论中，我们概述了铬尖晶石和相关矿物包裹体在记录胶结岩地幔剖面的构造环境和过去历史方面的重要性，重点是它们对深地壳循环提供的见解。尤其是存在超高压矿物包裹体，例如微金刚石，金属合金，锰硅酸盐和柯氏体，在波状铬铁矿和其他蛇纹岩地幔岩石中，提供了深而浅的形成条件的证据。超高压矿物的成分，尤其是蛇绿岩型金刚石的轻碳同位素组成，表明回收的地壳物质对蛇绿岩的地幔部分有贡献。通过地幔的地壳物质运输的细节仍然是争论和正在进行的研究的主题。对脂橄榄石橄榄岩和铬铁矿中的高压矿物进行全球调查应成为未来研究的目标，以帮助澄清对深地壳再循环的理解。表示回收的地壳物质对蛇绿岩的地幔部分的贡献。通过地幔的地壳物质运输的细节仍然是争论和正在进行的研究的主题。对脂橄榄石橄榄岩和铬铁矿中的高压矿物进行全球调查应成为未来研究的目标，以帮助澄清对深地壳再循环的理解。表示回收的地壳物质对蛇绿岩的地幔部分的贡献。通过地幔的地壳物质运输的细节仍然是争论和正在进行的研究的主题。对脂橄榄石橄榄岩和铬铁矿中的高压矿物进行全球调查应成为未来研究的目标，以帮助澄清对深地壳再循环的理解。