 | | Journal (article/letter/editorial) | | from diamond-bearing marble in the Kokchetav massif, northern Kazakhstan IKUO KATAYAMA1,*, MASAHITO OHTA2...of deeply subducted impure marble from the Kokchetav massif, we investigated mineral inclusions in zircon...Consequently, diamond, coesite, diopside, garnet, phlogopite, calcite, dolomite, graphite and apatite were...derived from K2O solubility in diopside buffered by phlogopite and from the garnet-clinopyroxene geothermometer...found in impure marbles from the Kokchetav massif, northern Kazakhstan (Sobolev & Shatsky, 1990; Ogasawara |  | Dobrzhinetskaya, L. F., Green, H. W., Bozhilov, K. N., Mitchell, T. E., Dickerson, R. M. (2003) Crystallization environment of Kazakhstan microdiamond: evidence from nanometric inclusions and mineral associations. Journal of Metamorphic Geology, 21 (5) 425-437 doi:10.1046/j.1525-1314.2003.00452.x | Journal (article/letter/editorial) | | 21, 425–437 Crystallization environment of Kazakhstan microdiamond: evidence from nanometric inclusions...and zircon from felsic gneiss of the Kokchetav massif, Kazakhstan, have been examined utilizing electron...diamond crystals intergrown with quartz, phengite, phlogopite, albite, K-feldspar, rutile, apatite, titanite...essentially the same stoichiometry suggests that the Kokchetav diamond crystallized from a fluid containing variable...originate from the mantle. It is concluded that Kokchetav diamond most likely crystallized from a COH-rich |  | | Journal (article/letter/editorial) | | Diamond-Free UHP Dolomitic Marble from the Kokchetav Massif a Yoshihide Ogasawara & Kazumasa Aoki a...DiamondFree UHP Dolomitic Marble from the Kokchetav Massif, International Geology Review, 47:11, 1178-1193...Diamond-Free UHP Dolomitic Marble from the Kokchetav Massif YOSHIHIDE OGASAWARA1 AND KAZUMASA AOKI Department...structure occurs at Kumdy-kol in the Kokchetav Massif, northern Kazakhstan. Three centimeter-scale zones occur...Ti-clinohumite and forsterite. The occurrence of phlogopite and garnet lamellae in diopside in zone C suggests |  | | 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 the...primarily in garnet, and occasionally in diopside and phlogopite pseudomorphs after garnet. They are classified...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 |  | 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...from Unit II at Kulet, eastern Kokchetav Massif, northern Kazakhstan, were studied. Diamond-bearing gneisses...inclusions of talc, kyanite and rutile with minor phlogopite, chlorite, margarite and zoisite. Inclusions...occurrence of high-K diopside (up to 1.56 wt% K O) and phlogopite in diamond-bearing dolomitic 2 marble, and Cr-bearing...words: diamond; eclogite; K-feldspar lamellae; Kokchetav Massif; UHP; whiteschist I N T RO DU C TI O N Diamond |  | | 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...kyanite, K-feldspar, biotite, phengite, quartz, phlogopite, albite, apatite, chlorite and carbonates are...of the metamorphic rocks. Key-words: diamond, Kazakhstan, metamorphism, genesis, carbon. 1. Introduction |  | | Journal (article/letter/editorial) | | information: http://www.tandfonline.com/loi/tigr20 Phlogopite and Coesite Exsolution from Super-Silicic Clinopyroxene...article: Yongfeng Zhu & Yoshihide Ogasawara (2002): Phlogopite and Coesite Exsolution from Super-Silicic Clinopyroxene...H. Winston & Son, Inc. All rights reserved. Phlogopite and Coesite Exsolution from Super-Silicic Clinopyroxene...Japan Abstract We document the exsolution of phlogopite and coesite/quartz from pre-existing super-silicic...clinopyroxene in dolomite marble from the Kokchetav massif, northern Kazakhstan. The exsolution texture was formed |  | DOBRZHINETSKAYA, L. F., WIRTH, R., RHEDE, D., LIU, Z., GREEN, H. W. (2009) Phlogopite and quartz lamellae in diamond-bearing diopside from marbles of the Kokchetav massif, Kazakhstan: exsolution or replacement reaction?. Journal of Metamorphic Geology, 27 (9) 607-620 doi:10.1111/j.1525-1314.2009.00832.x | Journal (article/letter/editorial) | | 607–620 doi:10.1111/j.1525-1314.2009.00832.x Phlogopite and quartz lamellae in diamond-bearing diopside...diopside from marbles of the Kokchetav massif, Kazakhstan: exsolution or replacement reaction? L. F. DOBRZHINETSKAYA...infrared (IR) spectroscopy studies of phlogopite (Phlog) and phlogopite + quartz (Qtz) lamellae in diamondbearing...boundaries of both the single (phlogopite), two-phase lamellae (phlogopite + quartz), and fluid inclusions...topotactically oriented extremely thin lamellae of phlogopite (that generally are two units cell wide but locally |  | | Journal (article/letter/editorial) | | origin in crustal rocks of the Kokchetav Massif, northern Kazakhstan, diamonds have been described from...exhumation. In contrast to other UHP terranes, the Kokchetav Massif contains rocks with unusually abundant diamonds...diamonds, particularly in the Kumdy-Kol region. Kumdy-Kol diamonds exhibit diverse morphologies, dependent...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 |  | Ohta, M, Mock, T, Ogasawara, Y, Rumble, D (2003) Oxygen, carbon, and strontium isotope geochemistry of diamond-bearing carbonate rocks from Kumdy-Kol, Kokchetav Massif, Kazakhstan. Lithos, 70 (3) 77-90 doi:10.1016/s0024-4937(03)00093-8 | Journal (article/letter/editorial) | | diamond-bearing carbonate rocks from Kumdy-Kol, Kokchetav Massif, Kazakhstan M. Ohta a, T. Mock b, Y. Ogasawara a...Diamond-bearing carbonate rocks from Kumdy-Kol, Kokchetav massif, Kazakhstan, were strongly altered by fluids flowing...an area measuring 100 10 km in the Kokchetav massif, Kazakhstan (Sobolev and Shatsky, 1990; Shatsky...map and sample locations of Kumdy-Kol, Kokchetav massif, Kazakhstan. Outcrops include eclogite, amphibolite...1995; Zhang et al., 1997; Okamoto et al., 2000). Kokchetav microdiamonds define a unique population in relation |  | | Journal (article/letter/editorial) | | thermodynamic calculations: examples from the Kokchetav Massif, Kazakhstan and the Sulu terrane, China HANS-JOACHIM...siliceous calcite-dolomite marble from the Kokchetav Massif, Kazakhstan and a dolomite marble from the UHP unit...rocks (Sulu terrane: 3.5–1.0 GPa around 6008C; Kokchetav Massif: 7 GPa—11008C to 0.65 GPa—7008C) are compatible...Orogen in Mali: Caby, 1994) and diamond (Kokchetav Massif, Kazakhstan: e.g. Ogasawara, 2009) in these rocks...Sulu terrane and in the Erzgebirge of the Bohemian Massif in central Europe, respectively, that the marbles |  | | Journal (article/letter/editorial) | | Metal-sulfur-COH-silicate fluid mediated diamond nucleation in Kokchetav ultrahigh-pressure gneiss SHYH-LUNG HWANG1, POUYAN...sulfides, randomly oriented microdiamonds and phlogopite have been identified as multiphase inclusions...garnet-clinopyroxene-quartz crustal rock from the Kokchetav Massif in Kazakhstan. Analytical electron microscopy shows...gneisses and dolomitic marbles from the Kokchetav Massif in Kazakhstan (De Corte et al., 1998 and 2000; Ishida...diamond/metal sulfides association is common also to the Kokchetav UHP gneisses, and whether the metal sulfides have |  | | Journal (article/letter/editorial) | | of Microdiamond in Dolomite Marble from the Kokchetav Massif—Additional Evidence for Two-Stage Growth of...of Microdiamond in Dolomite Marble from the Kokchetav Massif—Additional Evidence for Two-Stage Growth of...of Microdiamond in Dolomite Marble from the Kokchetav Massif— Additional Evidence for Two-Stage Growth...dolomite marble from the Kumdy-kol area of the Kokchetav Massif. These microdiamonds have been classified...morphology. S-type diamond, the most abundant type in Kokchetav dolomite marble, was examined using microcathodoluminescence |  | | Journal (article/letter/editorial) | | polymorph of albite, from the Kokchetav ultrahigh-pressure massif, Kazakhstan SHYH-LUNG HWANG1,*, POUYAN...with diopside, quartz/cristobalite, phengite/phlogopite, an unidentified aluminosilicate, calcic amphibole...eclogite from the Kumdy Kol, Kokchetav ultrahigh-pressure massif in northern Kazakhstan. The unit-cell parameters...between infiltrated melt and omphacite when the Kokchetav massif was exhumed from mantle depths to the base...Key-words: kumdykolite, polymorph, albite, Kokchetav massif, new mineral. 1. Introduction metamorphic |  | Sobolev, N. V., Schertl, H.-P., Valley, J. W., Page, F. Z., Kita, N. T., Spicuzza, M. J., Neuser, R. D., Logvinova, A. M. (2011) Oxygen isotope variations of garnets and clinopyroxenes in a layered diamondiferous calcsilicate rock from Kokchetav Massif, Kazakhstan: a window into the geochemical nature of deeply subducted UHPM rocks. Contributions to Mineralogy and Petrology, 162 (5) 1079-1092 doi:10.1007/s00410-011-0641-4 | Journal (article/letter/editorial) | | diamondiferous calcsilicate rock from Kokchetav Massif, Kazakhstan: a window into the geochemical nature...diamondiferous biotite gneisses and schists of the Kokchetav Massif. The calcsilicates are characterized by high...cooling. Communicated by J. Hoefs. Keywords Kokchetav Massif Garnet Pyroxene Oxygen isotopes Ultrahigh...Diamondiferous metamorphic rocks from the Kokchetav Massif (Kazaksthan) are mostly represented by biotite...(Shatsky et al. 1995) from calcsilicates of the Kokchetav Massif, and forsteritic olivine and Ti-clinohumite |  | | 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 |  | Hwang, Shyh-Lung, Shen, Pouyan, Chu, Hao-Tsu, Yui, Tzen-Fu, Liou, Juhn G., Sobolev, Nikolay V., Zhang, Ru-Yuan, Shatsky, Vladislav S., Zayachkovsky, Anton A. (2004) Kokchetavite: a new potassium-feldspar polymorph from the Kokchetav ultrahigh-pressure terrane. Contributions to Mineralogy and Petrology, 148 (3) 380-389 doi:10.1007/s00410-004-0610-2 | Journal (article/letter/editorial) | | Kokchetavite: a new potassium-feldspar polymorph from the Kokchetav ultrahigh-pressure terrane Received: 14 October...garnetpyroxene rock from the Kokchetav ultrahigh-pressure terrane, Kazakhstan. Kokchetavite has a hexagonal...a/b-cristobalite (or quartz) + siliceous glass ± phlogopite/titanite/calcite/zircon, occurring as multiphase...Zayachkovsky NEDRA Geological Expedition, 475013 Kokchetav, Kazakhstan concluded that kokchetavite could not be...diamondiferous UHP metamorphic rocks from the Kokchetav Massif has been intensively studied (Katayama et |  | Hwang, Shyh-Lung, Shen, Pouyan, Chu, Hao-Tsu, Yui, Tzen-Fu, Lin, Chung-Cherng (2001) Genesis of microdiamonds from melt and associated multiphase inclusions in garnet of ultrahigh-pressure gneiss from Erzgebirge, Germany. Earth and Planetary Science Letters, 188 (1) 9-15 doi:10.1016/s0012-821x(01)00314-4 | Journal (article/letter/editorial) | | association of microdiamonds with the phase assemblage: phlogopite, apatite, paragonite and K-quartz (containing...microdiamonds were reported from the Kokchetav Massif in Kazakhstan [1] and the Saxonian Erzgebirge in...before exhumation to the surface. The crystalline massif of the Erzgebirge has a central portion called...analytical electron microscopy (AEM) [8], imply that the massif experienced a subduction to depths greater than...assemblage: diamond (D), apatite (tailed arrow), phlogopite (Ph), paragonite (Pa), and quartz (Q) with Na^Al |  | 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...impurity. The symplectitic rims contain high-Mg phlogopite and K-amphibole; the latter was found in the...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 |  | | Journal (article/letter/editorial) | | metamorphic diamond from the Kokchetav UHP dolomite marble, northern Kazakhstan a a b Kyoko Imamura ,...metamorphic diamond from the Kokchetav UHP dolomite marble, northern Kazakhstan, International Geology Review...metamorphic diamond from the Kokchetav UHP dolomite marble, northern Kazakhstan Kyoko Imamuraa , Yoshihide...microdiamond (10–25 µm) inclusions in garnet from the Kokchetav Massif by secondary ion mass spectrometry. Typical...the two-stage growth of microdiamonds in the Kokchetav ultrahigh-pressure host rock. To explain the second |  | Katayama, Ikuo, Parkinson, Christopher D., Okamoto, Kazuaki, Nakajima, Youichi, Maruyama, Shigenori (2000) Supersilicic clinopyroxene and silica exsolution in UHPM eclogite and pelitic gneiss from the Kokchetav massif, Kazakhstan. American Mineralogist, 85 (10) 1368-1374 doi:10.2138/am-2000-1004 | Journal (article/letter/editorial) | | eclogite and pelitic gneiss from the Kokchetav massif, Kazakhstan IKUO KATAYAMA,1,* CHRISTOPHER D. PARKINSON...matrix clinopyroxene of eclogite from the Kokchetav massif, Kazakhstan. These rocks are diamond-grade, ultrahigh-pressure...containing 2.6 wt% exsolved quartz from the Munchberg Massif, and derived a Ca-Na pyroxene with 10 mol% of the...from eclogites from the Kumdykol region of the Kokchetav massif, Kazakhstan. The eclogite is intercalated... diamonds have been identified in the Kumdykol region (Sobolev and Shatsky 1990; Katayama et al. 1998) |  | Buslov, M.M., Dobretsov, N.L., Vovna, G.M., Kiselev, V.I. (2015) Structural location, composition, and geodynamic nature of diamond-bearing metamorphic rocks of the Kokchetav subduction-collision zone of the Central Asian Fold Belt (northern Kazakhstan) Russian Geology and Geophysics, 56 (1) 64-80 doi:10.1016/j.rgg.2015.01.004 | Journal (article/letter/editorial) | | of the Kokchetav subduction–collision zone of the Central Asian Fold Belt (northern Kazakhstan) M.M. Buslov...their protolith to the sedimentary rocks of the Kokchetav microcontinent. The structural location of the...accretion–collision zone evidences that the subduction of the Kokchetav microcontinent beneath the Vendian–Cambrian Ishim–Selety...metamorphic rocks. The sedimentary rocks of the Kokchetav microcontinent, which are enriched in graphite...geochronology; geochemistry; Kokchetav microcontinent Introduction Northern Kazakhstan is part of the Late |  | | Journal (article/letter/editorial) | | graphite and iron sulfides within the Kokchetav Precambrian massif and in other areas of Tien Shan, Finland...substances in Precambrian bodies. Within the Kokchetav massif, the association of graphitic sulfide-containing...the USSR Academy of Sciences, and the Central Kazakhstan Geological Board. The Russian term "formatsiya...the section in a ditch southwest of the town of Kokchetav, on the eastern boundary of the Chaglinka sovkhoz...of Ken-Utkul' to the southwest of the town of Kokchetav). A marble member about 5 m thick is exposed here; |  | | Report (issue) | | 4.84(1) Z = 2 X-ray Powder Pattern: Kokchetav massif, Kazakhstan. [by selective area electron diffraction]...21.26 2.02 0.70 0.04 9.85 101.19 (1) Kokchetav massif, Kazakhstan; semi-quantitative chemical analysis;...corresponds to Na1.02Ca0.00Al0.96Si3.02O8. (2) Kokchetav massif, Kazakhstan; semi-quantitative chemical analysis;...Na0.95Ca0.02Al0.98Si3.02O8. (3) Northern Bohemian Massif, Czech Republic; electron microprobe analysis,...Occurrence: As inclusions in omphacite in eclogite (Kazakhstan). Presumed to form under high temperatures with |  | | 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 |
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