Fluid Inclusions in Fibrous Diamonds
Fluid Inclusions in Fibrous Diamonds
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DOI：
10.2138/rmg.2022.88.09
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发表时间：
2022-07
影响因子：
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通讯作者：
Y. Weiss;J. Czas;O. Navon
中科院分区：
文献类型：
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作者：
Y. Weiss;J. Czas;O. Navon
大多数钻石是交代矿物，这意味着它们是从穿过固体地幔岩石并与之发生化学反应的流体或熔体中生长出来的。流体的参与在钻石研究的早期就被认识到（例如，Sobolev 1960; Kennedy and Nordie 1968; Meyer and Boyd 1972; Harte et al. 1980），主要归因于金伯利岩熔体（喷发的金伯利岩或更深的原始金伯利岩成分）。Richardson等人（1984）根据金刚石中石榴石包裹体的Rb-Sr和Sm-Nd系统学，认为它涉及“软流圈来源的碱、LREE和CO2富集的间隙熔体的引入和捕获，这些熔体在金刚石结晶之前一直保持液态”。然而，只有零星的报道，富碱矿物包裹体或流体或熔体包裹体的钻石中的出现，当时的报道。在后来的几年里，这种流体和金刚石的交代起源的证据不断积累，包括金刚石与其他交代矿物和捕虏体中的蚀变带（例如，Schulze等人，1996年; Anand等人，2004年; Zedgenizov等人，2018年）;金刚石中石榴石和单斜辉石包裹体的微量元素丰度模式，表明与熔体相互作用或从熔体中生长，熔体中极富含不相容的微量元素（Shimizu和Richardson 1987; Stachel和Harris 1997; Stachel等2004及其中的参考文献）以及对金刚石中微包裹体中流体或熔体的观察，这是本文的主题。
Most diamonds are metasomatic minerals, which means they grew from fluids or melts that moved through solid mantle rocks and chemically interacted with them. The involvement of fluids was recognized in the early days of diamond research (e.g., Sobolev 1960; Kennedy and Nordie 1968; Meyer and Boyd 1972; Harte et al. 1980) and was mostly attributed to kimberlite melts (either the erupting kimberlite, or a deeper proto-kimberlite composition). Based on Rb–Sr and Sm–Nd systematics of garnet inclusions in diamonds, Richardson et al. (1984) suggested that it involves “introduction and entrapment of asthenosphere-derived alkali, LREE and CO2 enriched interstitial melt, which remained liquid until the time of diamond crystallization”. However, only sporadic reports on the occurrence of alkali-rich mineral inclusions or fluidor melt-inclusions in diamonds were reported at that time. In later years, evidence for such fluids and the metasomatic origin of diamonds accumulated, including, the association of diamonds with other metasomatic minerals and with alteration zones in xenoliths (e.g., Schulze et al. 1996; Anand et al. 2004; Zedgenizov et al. 2018); trace element abundance patterns of garnet and clinopyroxene inclusions in diamonds that point to interaction with, or growth from melts that are extremely enriched in incompatible trace elements (Shimizu and Richardson 1987; Stachel and Harris 1997; Stachel et al. 2004 and references therein) and observations of fluids or melts in microinclusions in diamonds, which are the subject of this review.