 | | Journal (article/letter/editorial) | | Garnet-biotite-clinozoisite gneiss: a new type of diamondiferous metamorphic rock from the Kokchetav Massif ANDREI...Geologic Expedition 475013 Kokchetav, Kazakhstan Abstract: Clinozoisite gneisses were studied from the...Kumdy-Kol microdiamond deposit at Kokchetav massif (Northern Kazakhstan). As distinct from the deposit,...Ultrahigh-pressure metamorphic conditions for clinozoisite gneisses from the Barchi-Kol area are comparable...concentration profiles in garnets from diamondiferous clinozoisite rocks, the duration of retrograde metamorphism |  | | 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...located about 17 km to the west (Kokchetav Massif, Northern Kazakhstan). Details of geologic and petrologic |  | | Journal (article/letter/editorial) | | lithos.2007.09.008 (UHP) metamorphic complexes (Kokchetav, DabieShan, Norwegian Caledonides, Saxonian Erzgebirge...in some of the UHP complexes, such as the Kokchetav massif, the Saxonian Erzgebirge, and the Caledonides...characterized mainly by the interaction of inclusions of clinozoisite with their host under the above UHP conditions...complexes, including diamondiferous ones (e.g., Kokchetav, Erzgebirge). The data presented are based on...= dolomite-åkermanite solid solution; Czo = clinozoisite; Cpx = clinopyroxene; Grtin = initial garnet; |  | | Journal (article/letter/editorial) | | ‘monomineralic’ coesite inclusion in garnet from garnet– clinozoisite gneisses from the Barchi-Kol area (Korsakov...spherical problem numerically, the calculation region 0 \ r \ Rm0 was dived into non-equidistant cells...difficult to describe the shape of the transition region, which depends on local conditions and must be...‘monomineral’ coesite inclusion in garnet from garnet–clinozoisite gneiss (Korsakov et al., 2002, 2007). The simultaneously...of diamond inclusions in garnet from garnet–clinozoisite gneiss (Korsakov et al., 2002). The high resolution |  | | Journal (article/letter/editorial) | | southern Dora-Maira massif and Lago di Cignana in the Western Alps, the Dabie Shan-Sulu region in northeastern...northeastern China, the Kokchetav massif in northern Kazakhstan, and the Western Gneiss Region of the Scandinavian...preserving rare coesite relics. In the Dora-Maira massif, the Brossasco-Isasca Unit includes coesite-bearing...jadeitealmandine orthogneiss. In the Dabie Shan-Sulu region, felsic rocks with clear evidence of UHPM include...also may have been subjected to UHPM. In the Kokchetav massif, microdiamond-bearing rocks include garnet-biotite |  | | Journal (article/letter/editorial) | | KUMDY-KOL AND BARCHI-KOL DEPOSITS, KOKCHETAV MASSIF, NORTHERN KAZAKHSTAN Victor A. PECHNIKOV Central Research...and Barchi-Kol deposits in the Kokchetav Massif, northern Kazakhstan, varies widely from less than one...diamond in the metamorphic sequence of the Kokchetav Massif. Keywords: diamond, metamorphic rocks, factor...factor analysis, Kumdy-Kol, Barchi-Kol, Kokchetav Massif, Kazakhstan. Sommaire La teneur en diamant des...et Barchi-Kol, associés au massif de Kokchetav, dans le nord du Kazakhstan, varie beaucoup, de moins d’un |  | Korsakov, Andrey, Rezvukhina, Olga, Jaszczak, John, Rezvukhin, Dmitriy, Mikhailenko, Denis (2019) Natural Graphite Cuboids. Minerals, 9 (2) 110 doi:10.3390/min9020110 | Journal (article/letter/editorial) | | garnet-biotite feldspathic gneisses from the Kokchetav massif [2]. The predominant model for the lonsdaleite...complex [15], and garnet-biotite gneiss from the Kokchetav massif [16]. In contrast to lonsdaleite, which is...diamond and graphite has been proposed for the Kokchetav massif [22] and eclogitic xenoliths from the Udachnaya...garnet-clinopyroxene rocks from the Kokchetav massif (Northern Kazakhstan) [22,37,38]. Graphite cuboids in...geodynamic histories, i.e., the Kokchetav massif (Northern Kazakhstan), the Estes Quarry (West Baldwin |  | Korsakov, Andrey V., De Gussem, Kris, Zhukov, Vladimir P., Perraki, Maria, Vandenabeele, Peter, Golovin, Aleksander V. (2010) Aragonite-calcite-dolomite relationships in UHPM polycrystalline carbonate inclusions from the Kokchetav Massif, northern Kazakhstan. European Journal of Mineralogy, 21 (6) 1301-1311 doi:10.1127/0935-1221/2009/0021-1992 | Journal (article/letter/editorial) | | polycrystalline carbonate inclusions from the Kokchetav Massif, northern Kazakhstan ANDREY V. KORSAKOV1,*, KRIS DE GUSSEM2...diamond-grade metamorphic rocks from the Kokchetav Massif, N. Kazakhstan was identified for the first time by...magnesite in diamonds from the UHP Kokchetav Massif, Northern Kazakhstan, identified by TEM with focused...from UHP metamorphic rocks from the Kokchetav Massif, N. Kazakhstan frequently contain diamonds (Korsakov...pressure-temperature-time path of the diamond-bearing rocks of Kokchetav (Hermann, 2003a). Information on aragonite coexisting |  | Perchuk, A.L., Davydova, V.V., Burchard, M., Maresch, W.V., Schertl, H.-P., Yapaskurt, V.O., Safonov, O.G. (2009) Modification of mineral inclusions in garnet under high-pressure conditions: experimental simulation and application to the carbonate-silicate rocks of Kokchetav massif. Russian Geology and Geophysics, 50 (12) 1153-1168 doi:10.1016/j.rgg.2009.11.014 | Journal (article/letter/editorial) | | application to the carbonate-silicate rocks of Kokchetav massif A.L. Perchuk a,b,*, V.V. Davydova c, M. Burchard...Russian Academy of Sciences, Chernogolovka, Moscow Region, 142432, Russia c Lomonosov Moscow State University...carbonate-silicate rocks from the Kumdy-Kol deposit in the Kokchetav Massif. Multiphase inclusions in both samples contain...Kumdy-Kul microdiamond deposit in the Kokchetav Massif (Northern Kazakhstan). Experimental procedure The starting...chlorite; Cpx, clinopyroxene; Coe, coesite; Czo, clinozoisite; Di, diopside; Dia, diamond; Dol, dolomite; |  | | Journal (article/letter/editorial) | | metabasites, western Kokchetav ultrahigh-pressure–high-pressure massif, northern Kazakhstan HIDEKI MASAGO Division...part of the Kokchetav ultrahigh pressure (UHP) to high-pressure (HP) massif, northern Kazakhstan, metabasites...tschermakite–pargasite + quartz ± plagioclase ± epidote/clinozoisite. Zone D is characterized by the typical eclogite...°C for zone D. Key words: geothermobarometry, Kokchetav, metabasite, ultrahigh pressure–highpressure metamorphism...belts have been recognized, such as the Bohemian massif (Schmadicke 1991; O’Brien 1993), and the Qingling–Dabie–Sulu |  | | Journal (article/letter/editorial) | | P-T paths within the Barchi-Kol UHP terrain (Kokchetav Complex): Implications for subduction and exhumation...ultrahigh-pressure (UHP) metamorphism within the Kokchetav metamorphic belt. We provide a detailed and systematic...from metamorphism of other UHP rocks within the Kokchetav metamorphic belt. Therefore, the assembly of rocks...metamorphic temperatures. The Kokchetav metamorphic belt in northern Kazakhstan is known for its UHP metamorphic...pressures. Numerous studies have shown that the Kokchetav rocks were subducted to a depth of more than 120 |  | Ashworth, J. R., Reverdatto, V. V., kolobov, V. YU., Lepetyukha, V. V., Sheplev, V. S., Bryxina, N. A. (1998) Textures of diffusion-controlled reaction in contact-metamorphosed Mg-rich granulite, Kokchetav area, Kazakhstan. Mineralogical Magazine, 62 (2) 213-224 doi:10.1180/002646198547585 | Journal (article/letter/editorial) | | contactmetamorphosed lg-rich granulite, Kokchetav area, Kazakhstan J. R. AS~WORTH School of Earth Sciences...90, 630090 Russia In a granulite from the Kokchetav massif, a complex mineral assemblage and intricate...diffusion, cordierite-orthoamphibole rocks, Kokchetav massif. Introduction textures contain clues about...mechanism. Geological setting The Kokchetav massif, north Kazakhstan, is noted for high-pressure metamorphism...sketch map of the north-eastern part of the Kokchetav massif (located by arrow on the inset). 214 DIFFUSION-CONTROLLED |  | | Journal (article/letter/editorial) | | potential of metamorphic rocks in the Kokchetav Massif, northern Kazakhstan Victor A. PECHNIKOV1 and Felix V...There are two known diamondiferous bodies in Kazakhstan, the Kumdy-Kol deposit and the Barchi-Kol occurrence...belt that outcrops at the central part of the Kokchetav Massif. The metamorphic belt is interpreted as a...of the metamorphic rocks. Key-words: diamond, Kazakhstan, metamorphism, genesis, carbon. 1. Introduction...The history of diamond discoveries in Northern Kazakhstan began in 1967, when I.F. Kashkarov and Yu.A. |  | 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 identified 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...the western, diamond-bearing, part of the Kokchetav massif, and 2012 Blackwell Publishing Ltd chiefly |  | | Journal (article/letter/editorial) | | subducted carbonate rocks from the Kokchetav massif (Northern Kazakhstan) recrystallised within the diamond...diamonds in metacarbonates from the Kokchetav massif (Northern Kazakhstan) revealed the presence of a fluid...subducted carbonate rocks from the Kokchetav massif (Northern Kazakhstan). We show with Laser Ablation ICP-MS...processes. 2. Geological setting The Kokchetav massif (Northern Kazakhstan) represents a slice of continental...tectonic setting and geochronological data for this region has been provided by [18,20,23–28]. The diamondiferous |  | Korsakov, Andrey V., Perraki, Maria, Zhukov, Vladimir P., De Gussem, Kris, Vandenabeele, Peter, Tomilenko, Anatoly A. (2010) Is quartz a potential indicator of ultrahigh-pressure metamorphism? Laser Raman spectroscopy of quartz inclusions in ultrahigh-pressure garnets. European Journal of Mineralogy, 21 (6) 1313-1323 doi:10.1127/0935-1221/2009/0021-2006 | Journal (article/letter/editorial) | | metapelites from the Kokchetav ultrahigh-pressure metamorphic (UHPM) complex, Northern Kazakhstan, and diamond-grade...from Kokchetav, 0.1–0.3 GPa for quartz inclusions from diamond-grade metapelites from Kokchetav, and...diamond-grade metapelites from the Kokchetav complex, Northern Kazakhstan and diamond-grade eclogite xenoliths...garnet-kyanite-quartz rock (B9-04) from the Kokchetav massif (Fig. 1.) and one sample of a diamond-grade...micaschist samples K86, B01–3, K26C from the Kokchetav massif The mineral assemblage in the studied micaschists |  | | Journal (article/letter/editorial) | | Maruyama (1999). The sta bility of a zoisite/clinozoisite-epidote phase in some UHP eclogites has been...polycrystalline quartz pseudomorphs within zoisite/clinozoisite-epidote in some Chinese samples (Liou et al...recognize the existence within the Western Gneiss Region of the Norwegian Caledonides of a specific coesite-eclogite...are a conspicuous feature of the Western Gneiss Region in the coastal areas of Nordfjord, Sunnmore, and...nature of its boundary in the Outer Nordfjord district with a different m e t a m o r p h i c unit that |  | | Journal (article/letter/editorial) | | belt of east-central China, the Kokchetav Complex of northern Kazakhstan, the Maksyutov Complex of the...Urals, the Dora Maira Massif of the Western Alps, and the Western Gneiss Region of southwestern Norway...belt of east-central China, the Kokchetav Massif of northern Kazakhstan, the Maksyutov Complex of the southern...Urals, the Dora Maira Massif of the Western Alps, and the Western Gneiss Region of Norway. Figure 1 presents...observed structural relationships. The Kokchetav Complex The Kokchetav Complex occurs as an isolated tectonic |  | | Journal (article/letter/editorial) | | discovered in the coesite-bearing unit of the Dora Maira Massif near Bastoneri, Valle Gilba. Garnet is rich in...of formation is the break down of the former clinozoisite/epidote precursor during metamorphism due to...to the “exsolution” of garnet from precursor clinozoisite/epidote. Introduction A NEW EPISODE in metamorphic...rocks in the Dora Maira Massif, Italy (Chopin, 1984) and the Western Gneiss Region, Norway (Smith, 1984)...Dora Maira Massif (Schertl, 1995). Regional Geological Background The Dora Maira Massif, along with |  | | Journal (article/letter/editorial) | | under extreme metamorphic conditions in the Kontum Massif, central Vietnam Nobuhiko Nakano,1,* Yasuhito Osanai...ultrahigh-temperature mafic granulites from the Kontum Massif in central Vietnam records multiple metamorphic...constraints on the tectonic evolution of the Indochina region, and it also provides insights on crustal exhumation...ultrahigh temperature, ultrahigh pressure, Kontum Massif, Vietnam Introduction Quartz rods or needles in...including the Western Gneiss region, Norway (Smith and Cheeney 1980), Münchberg Massif, Germany (Gayk et al. |  | Zhimulev, F.I., Poltaranina, M.A., Korsakov, A.V., Buslov, M.M., Druzyaka, N.V., Travin, A.V. (2010) Eclogites of the Late Cambrian–Early Ordovician North Kokchetav tectonic zone (northern Kazakhstan): structural position and petrology. Russian Geology and Geophysics, 51 (2) 190-203 doi:10.1016/j.rgg.2009.12.020 | Journal (article/letter/editorial) | | Cambrian–Early Ordovician North Kokchetav tectonic zone (northern Kazakhstan): structural position and petrology...eclogites in the North Kokchetav accretion-collision zone located north of the Kokchetav metamorphic belt formed...ultrahigh-pressure rocks. In the Early Ordovician North Kokchetav tectonic zone, thin sheets of mylonite and diaphthoric...have been revealed at two sites of the North Kokchetav tectonic zone—Chaikino and Borovoe. The Chaikino...sheets; North Kokchetav tectonic zone Introduction Eclogites are widespread in the Kokchetav region of northern |  | | Journal (article/letter/editorial) | | (Massonne et al., 2000) and in those of the Su-Lu region, China (Yang et al., 1998), which cannot be simply...of the Erzgebirge, that is part of the Bohemian Massif, Massonne (1999) detected microdiamonds in hardly...these inclusions rutile, kyanite, phengite, clinozoisite, calcite and abundant dolomite were observed...from the coesite type locality in the Dora-Maira Massif, Western Alps, by Smith (1984) and Wain et al....indisputably establish ed, i.e. the Kokchetav Massif, Kazakhstan (Sobolev & Shatsky, 1990). Evidence |  | | Journal (article/letter/editorial) | | prograde zoning pattern in clinopyroxene from the Kokchetav diamond-grade metamorphic rocks: Missing part...melting Second critical end point UHPM history Kokchetav massif a b s t r a c t Despite extensive studies...studies of calc-silicate rocks of the Kokchetav massif, there is no satisfactory explanation of the origin...diamond-free UHP calc-silicate rocks of the Kokchetav massif. We believe that the crystallization of potassium-bearing...metamorphic (UHPM) rocks from the Kokchetav massif (Northern Kazakhstan) and particularly impure marbles |  | | Journal (article/letter/editorial) | | ultrahigh-pressure anatexis: fractionation of elements in the Kokchetav gneisses during melting at diamond-facies conditions...Berlin Heidelberg 2014 Abstract The Kokchetav complex in Kazakhstan contains garnet-bearing gneisses that...most characteristic trace element feature of the Kokchetav UHP restites is a strong depletion in light rare...fractionation observed during UHP anatexis in the Kokchetav gneisses is significantly different from depletions...Mineral Petrol (2014) 167:1002 The Kokchetav complex in Kazakhstan is ideal for the study of UHP melting |  | Schertl, H.-P., Neuser, R.D., Logvinova, A.M., Wirth, R., Sobolev, N.V. (2015) Cathodoluminescence microscopy of the Kokchetav ultrahigh-pressure calcsilicate rocks: What can we learn from silicates, carbon-hosting minerals, and diamond?. Russian Geology and Geophysics, 56 (1) 100-112 doi:10.1016/j.rgg.2015.01.006 | Journal (article/letter/editorial) | | com/locate/rgg Cathodoluminescence microscopy of the Kokchetav ultrahigh-pressure calcsilicate rocks: What can...ultrahigh-pressure metamorphic rock of the Kokchetav massif, has been performed. New thin sections were...ultrahigh-pressure metamorphism; cathodoluminescence; Kokchetav massif Introduction During the last 50 years cathodoluminescence...results on UHP-metamorphic rocks from the Kokchetav Massif/Kazakhstan using a “hot * Corresponding author...Particularly layered calcsilicate rocks from the Kokchetav massif offer a huge potential by applying CL-microscopy |
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