The presence of nanogranitoids (crystallized melt inclusions showing a granitic s.l. composition) in regionally metamorphosed migmatitic and granulitic terranes was documented for the first time in 2009. This important finding represented a hallmark event for crustal petrologists, demonstrating that the pristine composition of anatectic melts may be preserved and recovered in small objects hosted in peritectic minerals of high-grade metamorphic rocks. Many further occurrences were documented in rocks worldwide, from diverse geodynamic settings, from the Archean to Miocene, and these inclusions turned out to have diverse composition (from silicatic to carbonatitic). Therefore, we propose “nanorocks” as a comprehensive name for these crystallized melt inclusions. In the last decade, many studies demonstrated their utility in characterizing mechanisms of melting and in tracking crustal magma evolution. Although scholars are now able to easily recognize nanorocks in high-grade metamorphic rocks, only a few research groups remelt them by means of experimental devices because of a time-consuming preparation. However, when cutting-edge techniques are applied in addition to more routine ones, nanorocks do open new perspectives in crustal petrology.

中文翻译：

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Nanorocks：一个已有10年历史的故事

纳米类固醇的存在（结晶的熔体夹杂物显示出花岗岩的sl2009年首次记录了该地区变质的花岗岩和花岗石地层中的这一成分。这一重要发现代表了地壳岩石学家的一个标志性事件，表明可以在保存于该地壳的包晶矿物中的小物体中保存和回收原始熔体的原始成分。高档变质岩。在世界各地的岩石中，从太古代到中新世不同的地球动力学环境，都记录了许多进一步的事件，这些夹杂物的成分也不同（从硅酸盐岩到碳酸盐岩）。因此，我们提出“ nanorocks”作为这些结晶熔体包裹体的综合名称。在过去的十年中，许多研究证明了其在表征融化机制和追踪地壳岩浆演化方面的效用。尽管现在学者们能够轻松地识别出高级变质岩中的纳米岩，但由于准备工作很耗时，只有少数研究小组通过实验装置对其进行了修复。但是，当除了更常规的技术之外还应用尖端技术时，纳米岩石确实为地壳岩石学开辟了新的前景。