Ultrahigh pressure metamorphism / Метаморфизм сверхвысоких давлений

The new discoveries of diamond and coesite previously thought to form only in the mantle or under cataclysmic conditions have mobilized the petrologic community into an intense search throughout the world for new occurrences of these minerals in crustal rocks. The advancement in petrologic knowledge has taken shape in three separate and interconnected spheres that have allowed us to explore further into the depths of our planet. Continued high temperature and pressure laboratory experimental synthesis produced heretofore unrecognized naturally occurring species that initiated a search for these minerals in nature. Identification and chemical analysis of micron-size mineral inclusions in resistant minerals by the electron and ion probe have provided the ground truth for verifying the presence of such ultrahigh pressure minerals (UHPM) occurring naturally. At a much different scale, geophysical seismic profiles across young orogenic zones containing UHP minerals, such as the Alps, reveal that fragments of subducted crust indeed penetrate into the mantle and that plate movements are capable of moving crustal materials to such great depths. In all new discoveries, such as this one, there has been an enthusiasm developed for discovering yet another occurrence of diamond or coesite. Nearly a decade ago these discoveries were not predicted, and so the reality of these new finds is only now being considered by the earth science community; therefore, we can look forward to new paradigms explaining the origin of UHP minerals <...>

Overview of the geology and tectonics of UHPM R G Coleman and X. Wang
2 Experimental and petrogenetic study of UHPM H.-J. Massonne
3 Principal mineralogic indicators of UHP in crustal rocks C Chopin and N. V Sobolev
4 Structures in UHPM rocks: A case study from the Alps A. Michard, C Henry, and C Chopin
5 Creation, preservation, and exhumation of UHPM rocks B. R Hacker and S. M. Peacock
6 The role of serpentinite melanges in the unroofing of UHPM rocks: An example from the Western Alps of Italy M. C Blake, Jr., D. E. Moore, and A. S. Jayko
7 Ultra-high-pressure metamorphic rocks in the Western Alps R Compagnoni, T. Hirajima, and C Chopin
8 HP and UHP eclogites and garnet peridotites in the Scandinavian Caledonides E. J. Krogh and D. A. Carswell
9 Microcoesites and microdiamonds in Norway: An overview D. C Smith 

10 UHPM terrane in east central China X. Wang, R. Zhang, andl G. Liou
11 A model for the tectonic history of HP and UHPM regions in east central China E. A. Eide
12 Diamond-bearing metamorphic rocks of the Kokchetav massif (Northern Kazakhstan) V. S. Shatsky, N. V Sobolev, and M. A. Vavilov
13 Orogenic ultramafic rocks of UHP (diamond facies) origin D. G Pearson, G R. Davies, and P. H. Nixon