 | Yui, Tzen-Fu, Chu, Hao-Tsu, Hwang, Shyh-Lung, Shen, Pouyan, Wu, Tsai-Way, Liou, J.G., Sobolev, Nikolay V. (2010) Geochemistry of garnetiferous Tiâclinohumite rock and talcâkyaniteâphengiteâalmandine schist from the Kokchetav UHP terrane, Kazakhstan: An insight to possible origins of some chemically unusual UHP rocks. Lithos, 118 (1) 131-144 doi:10.1016/j.lithos.2010.04.005 | Journal (article/letter/editorial) | | talcâkyaniteâphengiteâ almandine schist from the Kokchetav UHP terrane, Kazakhstan: An insight to possible origins of...Whiteschist Talcâkyaniteâphengiteâalmandine schist Kokchetav UHP terrane a b s t r a c t Major-element, trace-element...Tiâclinohumite rocks and eclogites from the Kumdy Kol area, as well as talcâkyaniteâphengiteâalmandine...whiteschists) and eclogites from the Kulet area of the Kokchetav ultrahigh-pressure (UHP) terrane, to explore...gneiss/metapelite in these two areas. Most eclogites from the Kumdy Kol and the Kulet areas exhibit chemical characteristics |  | | Journal (article/letter/editorial) | | Natural diamond from three ultrahigh-pressure metamorphic (UHPM) terranes (Erzgebirge Massif, Germany;...Germany; Kokchetav Massif, Northern Kazakhstan; Rhodope Metamorphic Province, Greece) and synthetic diamond...for identifying and characterizing metamorphic diamond. Several criteria are established for distinguishing...section from the externally introduced ones [i.e., diamond as residual particles (contaminants) from the cutting...as the diamond size, the presence of inclusions, coatings, or coexistent phases and two diamond Raman |  | | Journal (article/letter/editorial) | | titanite in UHP marble from the Kokchetav Massif, northern Kazakhstan YOSHIHIDE OGASAWARA,1,* KYOKA FUKASAWA...Kumdykol in the Kokchetav UHP (ultrahigh-pressure) metamorphic terrane, northern Kazakhstan. This impure...minor amount of titanite, phengite, and garnet. No diamond was found in the marble. Coesite and quartz, which...exsolved phases were reintegrated by measuring their area fractions on digital images. The highest excess...of the UHP metamorphic unit. INTRODUCTION The Kokchetav terrane (Fig. 1) is well known for its ultrahigh-pressure |  | | Journal (article/letter/editorial) | | microdiamond in UHP dolomite marble from Kokchetav Massif, Kazakhstan H. ISHIDA,1 Y. OGASAWARA,1 K. OHSUMI2...microdiamond in dolomite marble from Kumdy-kol in the Kokchetav Massif, are unusual; a previous study estimated...basis of their morphology: (1) S-type: star-shaped diamond consisting of translucent cores and transparent...Maximum) of the Raman band of the core of the S-type diamond is slightly larger than that for the outer parts...distinct stages. Key words: dolomite marble; Kokchetav Massif; microdiamond; micro-Laue diffraction; ultrahigh-pressure |  | | Journal (article/letter/editorial) | | in a UHP diamond-free garnet-clinopyroxene rock from the Kokchetav Massif, northern Kazakhstan a Kunihiko...in a UHP diamond-free garnet-clinopyroxene rock from the Kokchetav Massif, northern Kazakhstan, International...in a UHP diamond-free garnet-clinopyroxene rock from the Kokchetav Massif, northern Kazakhstan Kunihiko...titantite in diamond-free garnet-clinopyroxene rock from the Kumdy-Kol area of the Kokchetav Massif were characterized...depths. Keywords: micro-FT-IR; Kokchetav Massif; northern Kazakhstan; UHP metamorphism; hydroxyl; H2 |  | ZHANG, R. Y., LIOU, J. G., ERNST, W. G., COLEMAN, R. G., SOBOLEV, N. V., SHATSKY, V. S. (1997) Metamorphic evolution of diamond-bearing and associated rocks from the Kokchetav Massif, northern Kazakhstan. Journal of Metamorphic Geology, 15 (4) 479-496 doi:10.1111/j.1525-1314.1997.00035.x | Journal (article/letter/editorial) | | evolution of diamond-bearing and associated rocks from the Kokchetav Massif, northern Kazakhstan R . Y. Z...630090, Russia A B S TR A CT Representative diamond-bearing gneisses and dolomitic marble, eclogite...at Kumdy Kol and whiteschist from Unit II at Kulet, eastern Kokchetav Massif, northern Kazakhstan, were...were studied. Diamond-bearing gneisses contain variable assemblages, including Grt+Bt+Qtz±Pl±Kfs±Zo±Chl±Tur±Cal...and minor Ap, Rt and Zrn; abundant inclusions of diamond, graphite+chlorite (or calcite), phengite, clinopyroxene |  | | Journal (article/letter/editorial) | | partial melting in the Kumdy-Kol region (Kokchetav Massif, Northern Kazakhstan) Alexey L. Ragozin a,â...U/Pb Zircon Kokchetav UHP metamorphism partial melting A B S T R A C T The Kokchetav Massif of northern...northern Kazakhstan is the best-known metamorphic diamond locality among numerous ultrahigh-pressure (UHP)...(UHP) terranes in the world. At the Kumdy-Kol deposit, diamondiferous rocks are interbedded with granitic...at the Kumdy-Kol region was performed to constrain the age of partial melting of the Kokchetav UHP metamorphic |  | Hacker, Bradley R., Calvert, Andrew, Zhang, R.Y., Ernst, W.Gary, Liou, J.G. (2003) Ultrarapid exhumation of ultrahigh-pressure diamond-bearing metasedimentary rocks of the Kokchetav Massif, Kazakhstan?. Lithos, 70 (3) 61-75 doi:10.1016/s0024-4937(03)00092-6 | Journal (article/letter/editorial) | | ultrahigh-pressure diamond-bearing $ metasedimentary rocks of the Kokchetav Massif, Kazakhstan? Bradley R. Hacker...94305-2115, USA Abstract The diamond-bearing, ultrahigh-pressure Kokchetav Massif recrystallized at eclogite-facies...Elsevier B.V. All rights reserved. Keywords: Kokchetav Massif; Ultrahigh-pressure metamorphism; Excess argon;...Exhumation rate 1. Introduction The Kokchetav Massif, Kazakhstan (Fig. 1), is a large ( f 10â 15 150...very unusual widespread occurrence of metamorphic diamond (e.g., Dobretsov et al., 1998; Maruyama and Parkinson |  | | Report (issue) | | X-ray Powder Pattern: Kumdy-Kol area, Kokchetav Massif, northern Kazakhstan. 2.581 (100), 2.974 (85)...[10.58] 0.13 [2.96] 100.67 (1) Kokchetav Massif, northern Kazakhstan; average of 11 electron microprobe...Occurrence: From ultrahigh-pressure, diamond-bearing gneiss. Association: Diamond, quartz, K-feldspar. Distribution:...Distribution:. From the Kumdy-Kol area of the Kokchetav Massif, northern Kazakhstan. Name: Honors Professor...O, from the ultrahigh-pressure Kokchetav massif, northern Kazakhstan: Description and crystal structure |  | Shatsky, V. S., Jagoutz, E., Sobolev, N. V., Kozmenko, O. A., Parkhomenko, V. S., Troesch, M. (1999) Geochemistry and age of ultrahigh pressure metamorphic rocks from the Kokchetav massif (Northern Kazakhstan) Contributions to Mineralogy and Petrology, 137 (3) 185-205 doi:10.1007/s004100050545 | Journal (article/letter/editorial) | | pressure metamorphic rocks from the Kokchetav massif (Northern Kazakhstan) Received: 14 August 1998 / Accepted:...Zerenda series metamorphic rocks from the Kokchetav massif are reported. Some of these rocks contain...metamorphism (P > 40 kbar, T = 900±1000 °C). The diamond-bearing rocks exhibit distinctive geochemical characteristics...metamorphism. The Sm-Nd mineral isochrons from the diamond-bearing rocks and other rock types of the Zerenda...determinations of secondary biotite and muscovite from the diamond-bearing rocks yield an age of 517  5 Ma. This |  | Hwang, Shyh-Lung, Shen, Pouyan, Chu, Hao-Tsu, Yui, Tzen-Fu, Liou, Juhn G., Sobolev, Nikolay V., Shatsky, Vladislav S. (2005) Crust-derived potassic fluid in metamorphic microdiamond. Earth and Planetary Science Letters, 231 (3) 295-306 doi:10.1016/j.epsl.2005.01.002 | Journal (article/letter/editorial) | | nanometer-size inclusions in metamorphic microdiamonds of Kokchetav dolomite marble and garnetâquartzâpyroxene rock...(AEM); diamond; inclusion; COH fluid; Kokchetav massif; ultrahigh-pressure metamorphism; diamond formation...were first discovered in the crustal rocks at Kokchetav [1], their presence has been increasingly recognized...could be subducted to mantle depths within the diamond stability field. These microdiamonds could have...characterization of water and carbonate inclusions in Kokchetav microdiamonds of a garnetâclinopyroxene rock was |  | | Journal (article/letter/editorial) | | Marble from the Kokchetav MassifâAdditional Evidence for Two-Stage Growth of Diamond a Nobuhiro Yoshioka...Marble from the Kokchetav MassifâAdditional Evidence for Two-Stage Growth of Diamond, International Geology...Marble from the Kokchetav Massifâ Additional Evidence for Two-Stage Growth of Diamond NOBUHIRO YOSHIOKA...diopside in dolomite marble from the Kumdy-kol area of the Kokchetav Massif. These microdiamonds have been...to their morphology. S-type diamond, the most abundant type in Kokchetav dolomite marble, was examined |  | Masago, H., Rumble, D., Ernst, W. G., Parkinson, C. D., Maruyama, S. (2003) Low delta18O eclogites from the Kokchetav massif, northern Kazakhstan. Journal of Metamorphic Geology, 21 (6) 579-587 doi:10.1046/j.1525-1314.2003.00465.x | Journal (article/letter/editorial) | | 579â587 Low d18O eclogites from the Kokchetav massif, northern Kazakhstan H. MASAGO,1,* D. RUMBLE,2 W. G....silicates in eclogites and whiteschists from the Kokchetav massif were analyzed by whole-grain CO2-laser ïŹuorination...and UHP metamorphism. Key words: eclogite; Kokchetav massif; low d18O; whiteschist. INTRODUCTION Since...of metamorphic diamond over a decade ago (Sobolev & Shatsky, 1990), the Kokchetav massif has attracted...attracted the interest of geoscientists worldwide. Kokchetav metamorphic rocks represent the deepest recovered |  | | Journal (article/letter/editorial) | | rocks from the Saxonian Erzgebirge and the Kokchetav Massif: are so-called diamondiferous gneisses magmatic...quartz-rich diamondiferous rocks from the Kokchetav Massif, especially the zonation of garnet, were studied...By this, the P^T paths, derived here for the Kokchetav rocks, and the textural observations it is concluded...metasediments (Erzgebirge: at T as high as 1200âĄC, Kokchetav Massif: at 50^100âĄC lower T) and ascended from at...deep portions of thickened continental crust (Kokchetav Massif: 45^50 km close to 800âĄC, Erzgebirge: 55^60 |  | | Journal (article/letter/editorial) | | origin in crustal rocks of the Kokchetav Massif, northern Kazakhstan, diamonds have been described from...ultrahigh-pressure (UHP) metamorphic terranes. In situ diamond is the best indicator of ultrahigh-pressure conditions...subduction of continental crust to depths within the diamond stability field followed by relatively rapid exhumation...the Kokchetav Massif contains rocks with unusually abundant diamonds, particularly in the Kumdy-Kol region...region. Kumdy-Kol diamonds exhibit diverse morphologies, dependent upon the host rock. Raman and cathodoluminescence |  | | Journal (article/letter/editorial) | | Mineralogy of a Diamond-Grade Eclogite from the Kokchetav Massif, Northern Kazakhstan a b c Kazuaki...Mineralogy of a Diamond-Grade Eclogite from the Kokchetav Massif, Northern Kazakhstan, International Geology...Mineralogy of a Diamond-Grade Eclogite from the Kokchetav Massif, Northern Kazakhstan KAZUAKI OKAMOTO...investigated mineral inclusions in zircons from Kokchetav diamond-grade eclogites. In the eclogites, phengite...1995). Diamond-grade ultrahigh-P (UHP) eclogite from the Kumdy-Kol region of the Kokchetav Massif, northern |  | | Journal (article/letter/editorial) | | UHP-metamorphic rocks from Dora Maira/Western Alps and Kokchetav/Kazakhstan: New insights using cathodoluminescence...rocks from the Dora Maira Massif (Italy) and the Kokchetav Massif (Kazakhstan) were investigated using...pyroxenes, kyanite, K-feldspar, quartz, coesite, diamond, zircon, apatite, and bearthite were examined....luminescence colours. Accessory luminescent minerals like diamond, apatite, bearthite are easy to identify in thin...Maira, Kokchetav. Introduction The first cathodoluminescence (CL) investigations of diamond, zircon |  | | Journal (article/letter/editorial) | | reported so far are 0.42 a.p.f.u. from the Kokchetav Massif, Kazakhstan (Sobolev and Shatsky, 1990; Shatsky...from UHP rocks such as the Kokchetav Massif (Kumdy-kol) and the Yinggelisay area also show evidence for Si...variety of UHP rocks considered in this study (black diamond: Castelli et al., 2007; black circle: Liu et al...as shown at 700 °C in Fig. 4A, B. In the low XAl region b0.1, the difference in aCaTiSiO4O resulting from... Austria) and one UHP locality (the Kokchetav Massif, Kazakhstan). Tropper et al. (2002) subsequently |  | | Journal (article/letter/editorial) | | garnet in whiteschist of the HP-UHPM Kokchetav massif, Kazakhstan: a record of progressive UHP metamorphism...metamorphic ĆœUHPM. belt in the Kulet region of the Kokchetav massif of Kazakhstan. Garnet displays prograde compositional...Coesite; Ultrahigh-pressure metamorphism; Kokchetav massif, Kazakhstan 1. Introduction The discovery and tectonic...crustal and supra-crustal rocks in the Kokchetav massif of Kazakhstan has been the subject of considerable...lens-like bodies and boudins in the KumdyâKol area of the massif Ćœe.g., Sobolev and Shatsky, 1990; Claoue-Long |  | | Journal (article/letter/editorial) | | clinopyroxene (KCpx) occurring as inclusions in diamond from kimberlite pipes and in garnet from garnet...clinopyroxene silicate rocks in the Kokchetav metamorphic massif, northern Kazakhstan. They argued (in their 5th...that the KCpx inclusions in garnet from the Kokchetav massif resulted from the crystallization of pyroxene...The K-feldspar (Kfs) blebs in Cpx from the Kokchetav massif have different occurrences and consequently...Cpx from the Kokchetav massif. 2. The occurrence of Kfs in Cpx from the Kokchetav massif The samples |  | Lussier, Aaron, Ball, Neil A., Hawthorne, Frank C., Henry, Darrell J., Shimizu, Rentaro, Ogasawara, Yoshihide, Ota, Tsutomu (2016) Maruyamaite, K(MgAl2)(Al5Mg)Si6O18(BO3)3(OH)3O, a potassium-dominant tourmaline from the ultrahigh-pressure Kokchetav massif, northern Kazakhstan: Description and crystal structure. American Mineralogist, 101 (2) 355-361 doi:10.2138/am-2016-5359 | Journal (article/letter/editorial) | | tourmaline from the ultrahigh-pressure Kokchetav massif, northern Kazakhstan: Description and crystal structure...quartzofeldspathic gneisses of the Kumdy-Kol area of the Kokchetav Massif, northern Kazakhstan. Maruyamaite contains...of UHP metamorphism in the stability field of diamond. Crystals occur as anhedral to euhedral grains... crystal-structure refinement, Kokchetav Massif, northern Kazakhstan, ultrahigh-pressure, microdiamond...tourmaline from diamondiferous Kokchetav UHP metamorphic rocks in northern Kazakhstan (Kaneko et al. 2000). Here |  | | Journal (article/letter/editorial) | | elsevier.com/locate/lithos Radiation damage to Kokchetav UHPM diamonds in zircon: Variations in Raman,...tourmaline-rich quartzofeldspathic rock from the Kokchetav Massif, Kazakhstan. The microdiamonds occur as inclusions...microdiamonds in zircons in various diamond-bearing rocks from the Kokchetav Massif. To discuss the genesis of...ïŹrst reported from the Kumdy-Kol area of the Kokchetav Massif, northern Kazakhstan (Sobolev and Shatsky...Shatsky, 1990), the Kokchetav ultrahigh-pressure (UHP) metamorphic diamonds have attracted a high level of interest |  | | Journal (article/letter/editorial) | | of the ultrahigh-pressure metamorphic Kokchetav Massif, Kazakhstan R. J. BEANE AND C. K. FIELD Bowdoin...south-west of Lake Zheltau in the Kulet region of the Kokchetav Massif. The equilibrium assemblage is kyanite...exhumation of the Kokchetav Massif. Key words: electron backscatter diffraction; Kokchetav; kyanite; microstructures;...UHP metamorphosed whiteschists of the Kokchetav Massif, Kazakhstan (Fig. 1a). Ultrahigh-pressure metamorphism...a minimum pressure of >2.7 GPa at >600 C) or diamond. Prior to the initial discoveries of coesite in |  | ZHANG, R. Y., LIOU, J. G., OMORI, S., SOBOLEV, N. V., SHATSKY, V. S., IIZUKA, Y., LO, C.-H., OGASAWARA, Y. (2012) Tale of the Kulet eclogite from the Kokchetav Massive, Kazakhstan: Initial tectonic setting and transition from amphibolite to eclogite. Journal of Metamorphic Geology, 30 (5) 537-559 doi:10.1111/j.1525-1314.2012.00980.x | Journal (article/letter/editorial) | | Tale of the Kulet eclogite from the Kokchetav Massive, Kazakhstan: Initial tectonic setting and transition...ABSTRACT The Kulet eclogite in the Kokchetav Massif, northern Kazakhstan, is identiïŹed as recording a prograde...the Kulet eclogite. Key words: amphibolite; Kokchetav Massif; Kulet coronal eclogite; tectonic setting;...The Kokchetav Massif [a diamond-bearing ultrahighpressure (UHP) metamorphic terrane], Kazakhstan has...studies focused on the western, diamond-bearing, part of the Kokchetav massif, and 2012 Blackwell Publishing |  | | Journal (article/letter/editorial) | | from the Eastern and Western Alps and the Ronda massif in Spain as well as a set of pyroxenites from the...the Kokchetav massif, northern Kazakhstan, and garnet peridotites from the Western Gneiss Region, western...together with a set of pyroxenites from the Kokchetav massif. Geochemical investigation has revealed that...pyroxenites and peridotites of the Kokchetav massif (Northern Kazakhstan) originated from metasomatically...al., 1984; Melcher et al., 2002) and the Ronda massif in Spain (Frey et al., 1985; Van der Wal and Bodinier |
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