 | Bulanova, Galina P., Walter, Michael J., Smith, Chris B., Kohn, Simon C., Armstrong, Lora S., Blundy, Jon, Gobbo, Luiz (2010) Mineral inclusions in sublithospheric diamonds from Collier 4 kimberlite pipe, Juina, Brazil: subducted protoliths, carbonated melts and primary kimberlite magmatism. Contributions to Mineralogy and Petrology, 160 (4) 489-510 doi:10.1007/s00410-010-0490-6 | Journal (article/letter/editorial) | | sublithospheric diamonds from Collier 4 kimberlite pipe, Juina, Brazil: subducted protoliths, carbonated...carbonated melts and primary kimberlite magmatism Galina P. Bulanova • Michael J. Walter • Chris B. Smith •... Armstrong Jon Blundy • Luiz Gobbo • Received: 4 June 2009 / Accepted: 11 January 2010 / Published...of diamonds from the Cretaceous Collier 4 kimberlite pipe, Juina, Brazil, that are predominantly nitrogen-free...CaTiSi-perovskite inclusion (Group 2) is close to the kimberlite emplacement time (93.1 ± 1.5 Ma). Group 3 diamonds |  | | Journal (article/letter/editorial) | | of carbonatitic melts. In the Juina kimberlite province of Brazil, all three suites have been found in...published age data for a Ca–Si–Ti inclusion, the Juina (Brazil) sublithospheric inclusions document a series of...Fe)O in the same diamond from the Koffiefontein kimberlite, South Africa. Scott-Smith et al. (1984) pointed...of inclusions in diamonds from the Monastery kimberlite, South Africa, with the composition of majoritic...discoveries particularly seen in the: Juina area, Brazil (Wilding, 1990; Harte and Harris, 1994; Harte et |  | | Journal (article/letter/editorial) | | isotope composition in diamonds from São-Luis (Brazil): Evidence for heterogenous carbon reservoir in...alluvial deposits of the São-Luis River (Juina, Brazil). Syngenetic inclusions were represented by phases...the expected “normal” mantle. The Juina kimberlite field in Brazil is a well-known source of alluvial sublithospheric...diopside; Gross — grossular; KFsp — K feldspar; Kya — kyanite; Neph — nepheline; Mrw — merwinite; Ol — olivine;...Chemical Geology 363 (2014) 114–124 deposits (Juina, Brazil), we investigated variations in C isotopes in diamonds |  | Zedgenizov, D. A., Ragozin, A. L., Kagi, H., Yurimoto, H., Shatsky, V. S. (2019) SiO2 Inclusions in Sublithospheric Diamonds. Geochemistry International, 57 (9) 964-972 doi:10.1134/s0016702919090131 | Journal (article/letter/editorial) | | which is often associated with micro-blocks of kyanite in the same inclusions. It was suggested that these...mafic compositions from magnesian websterites to kyanite eclogites, grospydites, and calc–silicate rocks...(kimberlites and alluvial placers) in the Juina area, Brazil, because these diamonds typically host inclusions...sublithospheric diamonds from São Luís placers, Brazil. These data are then used in discussing the conditions...14–16 kbar, i.e., in the thermodynamic stability field of stishovite (Walter et al., 2011; Kaminsky, 2012; |  | Thomson, A. R., , , Kohn, S. C., Bulanova, G. P., Smith, C. B., Araujo, D., Walter, M. J. (2014) Origin of sub-lithospheric diamonds from the Juina-5 kimberlite (Brazil): constraints from carbon isotopes and inclusion compositions. Contributions to Mineralogy and Petrology, 168 (6) doi:10.1007/s00410-014-1081-8 | Journal (article/letter/editorial) | | sub‑lithospheric diamonds from the Juina‑5 kimberlite (Brazil): constraints from carbon isotopes and inclusion...diamonds sourced from the Juina-5 kimberlite pipe in Southern Brazil, which contain optically identifiable...Universitário Darcy Ribeiro, 90910‑900 Brasilia, Brazil D. Araujo Rio Tinto Exploration Pty. Limited, 1...pyroxene exsolution, coesite with and without kyanite exsolution, clinopyroxene, Fe or Fe-carbide and...deposits and kimberlites from the Juina district in Brazil (Wilding 1990; Harte 1992; Hutchinson 1997; Walter |  | | Journal (article/letter/editorial) | | cited 711 times since publication and mentioned in 4 papers in this issue—Christian Chopin concluded his...David Smith’s paper the same year, heralded a new field of research. I thought it would be interesting to...to be the one looking at these rocks with both a field and an experimental background. Serendipity or just...familiarized himself with experimental petrology and field mineralogy. He completed an Alpine thesis under...diamond-bearing rocks from the Alps. Nature Geoscience 4: 703-706 A UGUS T 2013 PERSPECTIVE THE FATE OF |  | | Journal (issue) | | shipping. Subscriptions are $79.99 for one year (4 issues) in the U.S. and $99.99 elsewhere. Canadian...the submission of articles on all aspects of the field. Please see the Author Guidelines at gia.edu/gemsgemology...published in G&G are also welcome. Please note that Field Reports, Lab Notes, Gem News International, Micro-World...geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production...mostly elusive. Although economically viable kimberlite pipes have been discovered in recent years, the |  | Burnham, A.D., Thomson, A.R., Bulanova, G.P., Kohn, S.C., Smith, C.B., Walter, M.J. (2015) Stable isotope evidence for crustal recycling as recorded by superdeep diamonds. Earth and Planetary Science Letters, 432. 374-380 doi:10.1016/j.epsl.2015.10.023 | Journal (article/letter/editorial) | | the Juina-5 and Collier-4 kimberlites and the Machado River alluvial deposit in Brazil have carbon isotopic... and diamonds transported to the surface by kimberlite eruptions worldwide (Jacob, 2004), or it may...diamonds from South Africa (the Jagersfontein kimberlite). As with lithospheric eclogitic inclusions from...18 O for superdeep diamonds from Brazil (the Juina-5 and Collier-4 kimberlites; Bulanova et al., 2010;...fluorination at SUERC as δ 18 O = 21.0 ± 0.4h (1σ , n = 4). For garnet a set of 10 standards of known δ 18 O |  | | Journal (article/letter/editorial) | | (Davies et al., 1999, Pokhilenko et al., 2001), Brazil (Harte et al., 1999; Hutchison et al., 1999, 2001;...Australia (Tappert et al., 2005а; 2009), Arkhangel’sk kimberlite province (Sobolev et al.,1997), Siberian platform...inclusions in sublithospheric diamonds from Saõ—Luiz (Brazil) and other diamond deposits worldwide were used...majoritic garnet inclusions in Saõ-Luiz diamonds (Brazil) and other diamonds worldwide (data from Kiseeva...ultra-deep diamonds acquire a walstromite structure (Fig. 4). Rarely found are inclusions of Ca2SiO4 (larnite) |  | Korolev, Nester, Kopylova, Maya, Gurney, John J., Moore, Andy E., Davidson, Jim (2018) The origin of Type II diamonds as inferred from Cullinan mineral inclusions. Mineralogy and Petrology, 112. 275-289 doi:10.1007/s00710-018-0601-z | Journal (article/letter/editorial) | | eclogitic diamonds containing garnet, omphacite, kyanite and coesite comprise 33% of Type II diamonds. The...generally vary for Type II diamonds within a kimberlite and between kimberlites. Keywords Type II diamonds...diamonds . Diamond inclusions . Cullinan kimberlite . Photoluminescence . Diamond paragenesis . Carbon...Cape Town, Rondebosch, Cape Town 7701, South Africa 4 Department of Geology, Rhodes University, Artillery...are very rare, comprising only 1.3% of smaller (<4 ct) diamonds from the database of 3.5 million diamonds |  | | Journal (article/letter/editorial) | | even though the bulk chemistry remains constant. (4) The ages found for formation of lithospheric diamonds...important to stress the general point that the age of kimberlite eruption is unlikely to be the age of diamond...variety of localities for diamonds of both in situ kimberlite and alluvial sources. Typically, diamonds are...cratons (Kalahari in southern Africa, Guapore in Brazil, west Africa, and the Slave craton in Canada) where...peridotite ol+opx+cpx+grt ol, opx, grt, [cpx, chr]4 Maj peridotite ol+maj (cpx) ? Maj ‘wd-peridotite’ |  | Bataleva, Yuliya V., Kruk, Aleksei N., Novoselov, Ivan D., Furman, Olga V., Palyanov, Yuri N. (2020) Decarbonation Reactions Involving Ankerite and Dolomite under upper Mantle P,T-Parameters: Experimental Modeling. Minerals, 10 (8) 715 doi:10.3390/min10080715 | Journal (article/letter/editorial) | | 1a–c) [2,3], partial melting processes (Figure 2) [4–6], decomposition (breakdown) [5–7], dissolution [8...4MgSiO 3 ↔ 2Mg2SiO4 + CaMgSi2O6 + 2CO2 [18,19] (4) (5) 3MgCO Al22SiO O35++ 2SiO 3SiO22↔↔Mg Mg Si3...2CO2 3MgCO + Al SiO + 2SiO ↔ Mg Al Si O + 3CO (3) (4) However, most existing models decarbonation, and...experimental reactions involving natural carbonates (1)–(4), the parameters of reaction with the formation of...modeling decarbonation reactions natural carbonates (1)–(4), the parameters reaction olivine, ortho-of and clinopyroxene |  | Mikhail, S., Verchovsky, A.B., Howell, D., Hutchison, M.T., Southworth, R., Thomson, A.R., Warburton, P., Jones, A.P., Milledge, H.J. (2014) Constraining the internal variability of the stable isotopes of carbon and nitrogen within mantle diamonds. Chemical Geology, 366. 14-23 doi:10.1016/j.chemgeo.2013.12.014 | Journal (article/letter/editorial) | | for the mean mantle δ13C and δ15N values (±3 and ±4‰). However, there are samples that show much larger...nitrogen isotope value for peridotitic diamonds is −5 ± 4‰ (Fig. 1c) (Cartigny, 2005) and the mean δ15N value...for pre-Cambrian crustal organic nitrogen is +6 ± 4‰ (Fig. 1d) (Thomazo et al., 2009). This has lead several...unknown paragenesis originating from the Orapa kimberlite cluster, Botswana (PCD-Or) (Table 1). Note, the...Cullinan, SA Sao Luiz, Brazil Sao Luiz, Brazil Collier-4, Brazil Collier-4, Brazil Botswana Southern Africa* |  | | Book (volume) | | Sparks Editors Proceedings of 10th International Kimberlite Conference Volume 1 Dedicated to Roger H. Mitchell...Mitchell Proceedings of 10th International Kimberlite Conference D. Graham Pearson • Herman S. Grütter...Sparks Editors Proceedings of 10th International Kimberlite Conference Volume 1 Special Issue of the Journal...Photograph The 10th International Kimberlite Conference International Kimberlite Conferences (IKCs) are special...special events that are held across the world once in 4–5 years. IKC is the confluence platform for academicians |  | Sokol, Alexander G., Kupriyanov, Igor N., Seryotkin, Yurii V., Sokol, Ella V., Kruk, Alexey N., Tomilenko, Anatoly A., Bul’bak, Taras A., Palyanov, Yury N. (2020) Cymrite as mineral clathrate: An overlooked redox insensitive transporter of nitrogen in the mantle. Gondwana Research, 79. 70-86 doi:10.1016/j.gr.2019.08.013 | Journal (article/letter/editorial) | | N-bearing K-cymrite is obtained in association with a kyanite-garnetjadeite±muscovite±corundum assemblage in...stability field of N-rich K-cymrite in the presence of an N2-H2ONH3-bearing fluid is inferred to be P≥4 GPa...coefficient of (NH4)+ for phengite at 600–700°C and 2–4 GPa is < 1 (Busigny et al., 2003), and the efficiency...complex (Hwang et al., 2004; Mikhno et al., 2013). 4 We study experimentally the phase relations and...The results place constraints on the stability field of N-bearing K-cymrite in equilibrium with both |  | | Journal (article/letter/editorial) | | the formation of a Na3Al2(PO4)3 [4] phase component in garnet via [8]Na[4]P[8]M2+ –1 Si–1 that is strongly...study are the substantial P and Mg contents in kyanite with 0.17–0.20 wt% P2O5 and 0.20–0.56 wt% MgO,...incorporation into kyanite is consistent with the coupled substitution [4] Si4+ + [6]Al3+ = [4]P5+ + [6]Mg2+...in mind. Keywords: Phosphorus, garnet, apatite, kyanite, eclogite, exhumation Introduction The transport...P2O5 at P as low as 1.8 to 3.0 GPa. In the P-T range 4–13 GPa/1000–1350 °C, the P solubility in garnet strongly |  | | Book | | 2366-1585 Springer Mineralogy ISBN 978-3-319-54542-4 DOI 10.1007/978-3-319-54543-1 ISSN 2366-1593 (electronic)...been found in 1897 at South African kimberlitic pipe. It is now appreciated that this eclogite represents.... . .... 1 .... 1 .... 3 .... .... .... 4 4 6 .... .... 7 8 .... .... 11 13 .... .... .... . . . . . . . . . . . . . . . . . . . . . . . . 4 Upper-Mantle Diamond-Parental Systems in Physico-Chemical...FeTiO3, picroilmenite (Fe,Mg)TiO3 Jadeite NaAlSi2O6 Kyanite Al2SiO5 Liquid, melt Magnetite Fe2+Fe3+ 2 O4 Mg-majoritic |  | Sharygin, Igor S., Shatskiy, Anton, Litasov, Konstantin D., Golovin, Alexander V., Ohtani, Eiji, Pokhilenko, Nikolay P. (2018) Interaction of peridotite with Ca-rich carbonatite melt at 3.1 and 6.5 GPa: Implication for merwinite formation in upper mantle, and for the metasomatic origin of sublithospheric diamonds with Ca-rich suite of inclusions. Contributions to Mineralogy and Petrology, 173 (3) doi:10.1007/s00410-017-1432-3 | Journal (article/letter/editorial) | | Pyrope-almandine garnet, omphacite, coesite, corundum and kyanite are characteristic minerals of the eclogitic type...found in a diamond from São Luiz (Juina province, Brazil), indicates that the Ca-rich suite of inclusions...have demonstrated that, in the diamond stability field, merwinite and olivine crystallise together in bulk...2011; Bulatov et al. 2014), respectively. Grey field covers potential system compositions, produced by...xenolith (UV-12/05) from the Udachnaya-East kimberlite pipe (Siberian Craton) and Al-bearing orthopyroxene |  | Gréaux, Steeve, Zhou, Youmo, Kono, Yoshio, Yamada, Akihiro, Higo, Yuji, Irifune, Tetsuo (2020) Thermoelastic Properties of K0.7Na0.3AlSi3O8 Hollandite and NaAlSi2O6 Jadeite: Implication for the Fate of the Subducted Continental Crust in the Deep Mantle. Minerals, 10 (3) 261 doi:10.3390/min10030261 | Journal (article/letter/editorial) | | cold water. Analysis of the resulting glass by a field emission scanning electron microscope (FE-SEM, JSM7000F...0.0(1) 0.0(0) 0.0(0) O Total 46.40 98.4 46.4(4) 99.1(9) 46.5(3) 99.4(7) 47.0(1) 100.5(2) 49.2(2)...2(2) 100.1(7) 48.9(2) 100.5(3) 49.1(2) 100.4(4) * in situ measurements (see details liebermannite;...methods); 9.7(1) Na-lieb, 9.6(1)Na-bearing 9.5(1) 10.6(4) 10.4(1) Jd, jadeite; 10.1(1) St, AlSi 30.15 30.6(2)...78(1) 3.73(1) Al 10.43 9.7(1) 9.6(1) 9.5(1) 10.6(4) 10.4(1) 10.1(1) - not detected by EDS analysis; minor |  | | Journal (article/letter/editorial) | | shatskiy@gmail.com (A.F. Shatskiy) depths of 130–220 km (4–7 GPa) (Dobretsov and Shatsky, 2004; Mikhno and Korsakov...eitelite [Na2Mg(CO3)2] (Sharygin et al., 2013a); (4) crystallized alkali-carbonate melts in secondary...2013); (5) carbonate-silicate compositions of kimberlite which is derived from partly decarbonated hypabyssal...fresh groundmass of the Udachnaya-East hypabyssal kimberlite (Yakutia) agrees with experimental data (Litasov...phlogolpite in the Malaya Kuonapka porphyritic kimberlite (Sobolev et al., Pers. Commun.). Thus, it is |  | | Journal (article/letter/editorial) | | transformation within the lawsonite stability field in metabasaltic rocks is gradual and cannot be defined...progressive eclogitization within the lawsonite stability field is preserved in some zoned garnets, as growth isolates...lawsonite-bearing metamorphic rocks has not only included field geology, petrology, geochronology and high-pressure...Okamoto & Maruyama, 1999). The lawsonite stability field covers a wide P–T range and overlaps that of glaucophane...n 1.5 GR Lws Grt Gln 1 EpGln-EC Omp Jd Pg 3.4 4 Ja 95] 3] K6 s [N Lw s[ N6 8] Lw [M86] Gln+Cz+Qz+V |  | | Book | | MgO–FeO–SiO2–CaSiO3: Liquidus Structure .. 1 .. 1 .. 2 .. 4 .. 9 .. .. 11 14 .... .... .... 19 19 24 .... . . . . . . . . . . . . . . . . . . . . . . . . 4 Lower Mantle Diamond-Parental Multicomponent Systems...Tappert et al. 2005) and Juina Region, Mato Grosso State, Brazil (Kaminsky et al. 2009, 2010; Bulanova...identified within the ancient placers of Juina Region in Brazil (Wilding et al. 1991; Harte and Harris 1994; Harris...to the Earth’s surface by alkaline-basalt and kimberlite magmas from depths of 150–250 km. It turns out |  | Sharygin, Igor S., Litasov, Konstantin D., Shatskiy, Anton, Golovin, Alexander V., Ohtani, Eiji, Pokhilenko, Nikolay P. (2015) Melting phase relations of the Udachnaya-East Group-I kimberlite at 3.0–6.5 GPa: Experimental evidence for alkali-carbonatite composition of primary kimberlite melts and implications for mantle plumes. Gondwana Research, 28 (4) 1391-1414 doi:10.1016/j.gr.2014.10.005 | Journal (article/letter/editorial) | | Phase Relations of the Udachnaya-East Group-I Kimberlite at 3.0-6.5 GPA: Experimental Evidence for Alkali-Carbonatite...Alkali-Carbonatite Composition of Primary Kimberlite Melts and Implications for Mantle Plumes Igor Sharygin...Phase Relations of the UdachnayaEast Group-I Kimberlite at 3.0-6.5 GPA: Experimental Evidence for Alkali-Carbonatite...Alkali-Carbonatite Composition of Primary Kimberlite Melts and Implications for Mantle Plumes, Gondwana...PHASE RELATIONS OF THE UDACHNAYA-EAST GROUP-I KIMBERLITE AT 3.0-6.5 GPA: EXPERIMENTAL EVIDENCE FOR ALKALI-CARBONATITE |  | | Book | | взаимодействии GLOSS–перидотит........... 54 Глава 4. ЭКСПЕРИМЕНТАЛЬНОЕ И ТЕОРЕТИЧЕСКОЕ МОДЕЛИРОВАНИЕ...компонентов при глубинной субдукции океанической коры; (4) установление признаков наследования минералами состава...2015–2022 гг. на многопуансонных аппаратах типа Каваи в 4 Геодинамическом исследовательском центре Университета...фаза B Mg10Si3O14(OH)4, фаза D – твердый раствор в ряду MgSi2O4(OH)2–MgAl2O2(OH)4, Egg – фаза Egg AlSiO3OH...имеющего в составе 0,5–5,0 мас.% H2O, при давлениях от 4 до 25 ГПа были изучены во многих экспериментальных |  | | Book | | the pioneers of Russia’s diamond deposits, real field geologists, brilliant and gifted, who are among...prompted by the hope of the pioneers that a vast kimberlite province, similar to the one of Yakutia, would...vii viii Introduction high-diamondiferous kimberlite pipes (the M. V. Lomonosov and V. Grib deposits)...bodies largely comprised by alkaline ultrabasic kimberlite and related rocks, which form a series of individual...Enterprise) ALROSA (PJSC)). “Archangelsk diamondiferous kimberlite-picrite region can be deemed as an element of |
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