 | 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...2010 Available online 18 April 2010 Keywords: Eclogite Garnetiferous Tiâclinohumite rock Whiteschist...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 |  | | Journal (article/letter/editorial) | | (UHPM) terranes (Erzgebirge Massif, Germany; Kokchetav Massif, Northern Kazakhstan; Rhodope Metamorphic Province... Keywords: Diamond, Raman, UHP metamorphism, Kokchetav, Erzgebirge, Rhodope Metamorphic Province introduCtion...from metamorphic rocks from the Kokchetav Massif, Northern Kazakhstan, microdiamonds have been identified...photomicrograph for each (Fig. 1). Kokchetav Massif, Northern Kazakhstan Diamond-bearing samples were selected...from two localities, the Kumdy-Kol microdiamond deposit and the Barchi-Kol area that is located about 17 |  | 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) | | diamond-bearing and associated rocks from the Kokchetav Massif, northern Kazakhstan R . Y. Z HA N G1 , J . G. L I OU...dolomitic marble, eclogite and Ti-clinohumite-bearing garnet peridotite from Unit I at Kumdy Kol and whiteschist...from Unit II at Kulet, eastern Kokchetav Massif, northern Kazakhstan, were studied. Diamond-bearing gneisses...after coesite were identified in garnet from both eclogite and gneiss. Other ultrahigh-pressure (UHP) indicators...garnet (up to 0.14 wt% Na O) with omphacitic Cpx in eclogite, 2 occurrence of high-K diopside (up to 1.56 wt% |  | | 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...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...continental subduction have been reported from this area: coesite, K-rich clinopyroxene, SiO2 rods in omphacite |  | | Journal (article/letter/editorial) | | garnet-clinopyroxene rock from the Kokchetav Massif, northern Kazakhstan a Kunihiko Sakamaki & Yoshihide...garnet-clinopyroxene rock from the Kokchetav Massif, northern Kazakhstan, International Geology Review, DOI:...garnet-clinopyroxene rock from the Kokchetav Massif, northern Kazakhstan Kunihiko Sakamaki* and Yoshihide...garnet-clinopyroxene rock from the Kumdy-Kol area of the Kokchetav Massif were characterized using micro-FT-IR...depths. Keywords: micro-FT-IR; Kokchetav Massif; northern Kazakhstan; UHP metamorphism; hydroxyl; H2 |  | 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) | | diamond-bearing $ metasedimentary rocks of the Kokchetav Massif, Kazakhstan? Bradley R. Hacker a,*, Andrew Calvert...diamond-bearing, ultrahigh-pressure Kokchetav Massif recrystallized at eclogite-facies conditions deep in the...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...reserved. doi:10.1016/S0024-4937(03)00092-6 Kokchetav Massif. This paper reports new 40Ar/39Ar geochronology |  | | 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...distinct stages. Key words: dolomite marble; Kokchetav Massif; microdiamond; micro-Laue diffraction; ultrahigh-pressure...1999). The microdiamonds in the Kokchetav Massif, northern Kazakhstan are of crustal origin, formed during...in China (Xu et al., 1992), the Western Gneiss Region in Norway (Dobrzhinetskaya et al., 1995), Saxonian |  | 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...of the Zerenda series from the Kokchetav massif (Northern Kazakhstan) and diagnostic mineral compositions...have been done most extensively for Dora-Maira massif. The residence of these rocks in the mantle did...1997). The diamondiferous rocks of the Kokchetav massif (Kazakhstan) provide another example of crustal |  | | 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 |  | 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...isotopic compositions are heterogeneous in samples of eclogite, even on an outcrop scale. Schists have rather...subduction and UHP metamorphism. Key words: eclogite; Kokchetav massif; low d18O; whiteschist. INTRODUCTION...1990), the Kokchetav massif has attracted the interest of geoscientists worldwide. Kokchetav metamorphic |  | | Journal (article/letter/editorial) | | Mineralogy of a Diamond-Grade Eclogite from the Kokchetav Massif, Northern Kazakhstan a b c Kazuaki Okamoto...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,1 Institute...investigated mineral inclusions in zircons from Kokchetav diamond-grade eclogites. In the eclogites, phengite...ultrahigh-P (UHP) eclogite from the Kumdy-Kol region of the Kokchetav Massif, northern Kazakhstan, is the best |  | | Journal (article/letter/editorial) | | of Microdiamond in Dolomite Marble from the Kokchetav MassifâAdditional Evidence for Two-Stage Growth of...of Microdiamond in Dolomite Marble from the Kokchetav MassifâAdditional Evidence for Two-Stage Growth of...of Microdiamond in Dolomite Marble from the Kokchetav Massifâ Additional Evidence for Two-Stage Growth...diopside in dolomite marble from the Kumdy-kol area of the Kokchetav Massif. These microdiamonds have been...morphology. S-type diamond, the most abundant type in Kokchetav dolomite marble, was examined using microcathodoluminescence |  | | 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...gneiss and garnet pyroxenite, coesite-bearing eclogite, and Ticlinohumite garnet pyroxenites, which occur |  | | Journal (article/letter/editorial) | | (e.g. Liou et al., 1998). The low variance of eclogite mineral assemblages has long posed 124 P. Tropper...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...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) | | 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 |  | 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...Microscopy (AEM); diamond; inclusion; COH fluid; Kokchetav massif; ultrahigh-pressure metamorphism; diamond...were first discovered in the crustal rocks at Kokchetav [1], their presence has been increasingly recognized...characterization of water and carbonate inclusions in Kokchetav microdiamonds of a garnetâclinopyroxene rock was...carbonates and silicates in microdiamonds from Kokchetav gneisses [7]. Still, direct observation (imaging) |  | | 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...ultrahigh-pressure metamorphism, Dora Maira, Kokchetav. Introduction The first cathodoluminescence (CL)...on coesite-bearing specimens from the Dora Maira Massif and Zermatt-Saas Zone. Further investigations were...diamondbearing UHP-metamorphic rocks of the Kokchetav massif/Kazakhstan. Recently, Kempe et al. (1999) presented |  | | Journal (article/letter/editorial) | | origin in crustal rocks of the Kokchetav Massif, northern Kazakhstan, diamonds have been described from...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...by Rozen et al. (1972) from the Kokchetav Massif, northern Kazakhstan, its metamorphic origin was accepted...(1990). Since then, addicontinental collision, Kokchetav tional occurrences have been discovered in the |  | | Journal (article/letter/editorial) | | 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...studied were also collected from the Kumdy â Kol area in the Kokchetav massif, which contain up to 50% calcite |  | | Journal (article/letter/editorial) | | of the ultrahigh-pressure metamorphic Kokchetav Massif, Kazakhstan R. J. BEANE AND C. K. FIELD Bowdoin... Kyanite-bearing whiteschist, associated with eclogite lenses, is part of UHPM unit II located south-west...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 |  | 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) | | 00980.x Tale of the Kulet eclogite from the Kokchetav Massive, Kazakhstan: Initial tectonic setting and...and transition from amphibolite to eclogite R. Y. ZHANG,1,2 J. G. LIOU,1 S. OMORI,3 N. V. SOBOLEV,4 V...Japan ABSTRACT The Kulet eclogite in the Kokchetav Massif, northern Kazakhstan, is identiïŹed as recording...transitional coronal eclogite to fully recrystallized eclogite (normal eclogite). In addition to minor...minor bodies of normal eclogite with an assemblage of Grt + Omp + Qz + Rt ± Ph and ïŹne-grained granoblastic |  | | Journal (article/letter/editorial) | | inïŹltration in the Kokchetav ultrahigh-pressure metamorphic rocks, northern Kazakhstan Hideki Masago a,â...of the Kokchetav massif, Kazakhstan. The mode and extent of retrograde hydration in the massif are highly...by observations and thermodynamic calculations. Eclogite and metapelite absorbed about 1.0 wt.% and 0.2...was calculated as 0.1% of the total mass of the massif. This amount of ïŹuid is fully covered by the dehydration...Dabie-Sulu, China (Wang et al., 1989), the Bohemian massif, Poland (Bakun-Czubarow, 1992), Sulawesi Indonesia |  | | 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 |  | | Journal (article/letter/editorial) | | silicate â carbonate rocks of the Kokchetav Complex, northern Kazakhstan. The analysis of the available...and calc-silicate rocks of the Kokchetav Complex, northern Kazakhstan, appeared (Sobolev and Shatsky...system Phl â Di armalcolite â phlogopite lamproite eclogite + Msb high-K basalt high-K basalt Na2O (wt.%)...aggregates in Cpx grains from quartz-free rocks of the Kokchetav Complex (Perchuk et al., 1996) and some diamondiferous...Okamoto and Maruyama (1998) analyzed KCpx at the eclogite solidus obtained for two different samples from |  | | 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...in various diamond-bearing rocks from the Kokchetav Massif. To discuss the genesis of diamonds based...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 |
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