The current state and future of accessory mineral research
The current state and future of accessory mineral research
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DOI：
10.1016/s0009-2541(02)00146-8
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发表时间：
2002-11
期刊：
影响因子：
3.9
通讯作者：
F. Poitrasson;J. Hanchar;U. Schaltegger
中科院分区：
文献类型：
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作者：
F. Poitrasson;J. Hanchar;U. Schaltegger
在过去十年中，副矿物研究领域取得了许多重大进展，特别是成像和现场测量技术的发展。在本文中，我们回顾了一些最新的发展，并提出了未来研究的重点领域。像锆石和独居石的关键配件的岩浆稳定性，现在是相当众所周知的，在过去的十年中已经看到了独居石，绿帘石，蓝闪石，锆石的变质稳定性的知识有了很大的改善。然而，其他稳定域，如表生和热液条件仍然知之甚少。然而，这些数据是必不可少的，因为副矿物的出现或变化越来越多地被用作其寄主岩石变化的条件和时间的探针。附件的稳定性也起着关键作用的地球化学重要的微量元素的流动性，往往主要由这些阶段在岩石中。近年来，我们也看到了扩展的努力，以提高我们的知识的晶体化学，晶体取代，和机制的元素迁移率内的副矿物晶格，无论是在自然情况下，实验研究。锆石、独居石和磷灰石是这些研究的主要目标。这些研究导致了新的变质地质温度计的产生，使我们能够提高对由辅助矿物承载的辐射测量系统的行为的认识，并调查了可以以结构和成分类似于独居石或锆石的陶瓷废物形式储存的核废物的性质和数量。然而，在这方面仍有许多工作要做。地质年代学是辅助矿物研究的另一个主要动机。近年来，结合显微结构和显微化学研究，现场进行的地质年代学研究成倍增加。这些研究说明了副矿物中锁定了丰富的年代学信息。然而，这是一个快速发展的领域，这将极大地受益于内部矿物纹理，晶体内的元素迁移机制，以及未来原位分析技术的发展，如激光烧蚀电感耦合等离子体质谱（LA-ICP-MS）和离子微探针。
Over the past decade, there have been many significant advances in the area of accessory minerals research, notably permitted by the development of imaging and in situ measurement techniques. In this paper, we review some recent developments and suggest areas on which to focus future research. The magmatic stability of key accessories like zircon and monazite is now reasonably well known and the past decade has seen a large improvement of the knowledge on the metamorphic stability of monazite, epidote, sphene, and zircon. However, other stability domains such as supergene and hydrothermal conditions remain poorly known. Such data are nevertheless essential as the occurrence or transformations of accessory minerals are being increasingly used as probes of the conditions and timing of their host rock transformations. The stability of accessories plays also a key role on the mobility of geochemically important trace elements, often predominantly hosted by these phases in rocks. The recent years have also seen extended efforts to improve our knowledge on the crystal chemistry, crystallographic substitutions, and the mechanisms of element mobility within accessory mineral lattices, based both on natural cases and experimental studies. Zircon, monazite, and apatite were the main targets of these investigations. These researches resulted in the derivation of new metamorphic geothermometers, allowed to improve our knowledge of the behaviour of radiometric systems hosted by accessory minerals, and investigated the nature and quantity of nuclear waste that could be stored in ceramic waste forms with structures and compositions similar to those of monazite or zircon, for example. Much remains to be done in this area, however. Geochronology is another major incentive for accessory mineral research. Recent years have shown the multiplication of geochronological investigations carried out in situ with combined microtextural and microchemical investigations. These researches illustrated the wealth of chronological information locked in accessory minerals. This is, however, a rapidly evolving field, which will strongly benefit from improved understanding of internal mineral textures, mechanisms of element mobility within crystals, and future development of in situ analytical techniques like Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and ion microprobe.