 | Kaminsky, F. V., Zakharchenko, O. D., Griffin, W. L., Channer, D. M. DeR., Khachatryan-Blinova, G. K. (2000) DIAMOND FROM THE GUANIAMO AREA, VENEZUELA. The Canadian Mineralogist, 38 (6) 1347-1370 doi:10.2113/gscanmin.38.6.1347 | Journal (article/letter/editorial) | | pp. 1347-1370 (2000) DIAMOND FROM THE GUANIAMO AREA, VENEZUELA* FELIX V. KAMINSKY§ KM Diamond Exploration... NSW 2109, Australia DOMINIC M. DeR. CHANNER Guaniamo Mining Company, Centro Gerencial Mohedano, Cruce...Cruce Av. Mohedano, Urb. La Castellana, Caracas, Venezuela GALINA K. KHACHATRYAN-BLINOVA Institute of Diamonds...kimberlite sills and placer deposits in the Guaniamo area of Venezuela have been characterized in terms of morphology...comprehensive mineralogical study of diamond from the Guaniamo area. About 50% of the crystals are resorbed dodecahedral |  | Kaminsky, F. V., Zakharchenko, O. D., Khachatryan, G. K., Griffin, W. L., Channer, D. M. DeR. (2006) DIAMOND FROM THE LOS COQUITOS AREA, BOLIVAR STATE, VENEZUELA. The Canadian Mineralogist, 44 (2) 323-340 doi:10.2113/gscanmin.44.2.323 | Journal (article/letter/editorial) | | DIAMOND FROM THE LOS COQUITOS AREA, BOLIVAR STATE, VENEZUELA Felix V. KAMINSKY§, Olga D. ZAKHARCHENKO and Galina... NSW 2113, Australia Dominic M. DeR. CHANNER Guaniamo Mining Company, Centro Gerencial Mohedano, Office...Caracas, Venezuela Abstract A set of 77 diamond crystals from the Los Coquitos placer on the Guaniamo River...River in Bolivar State, Venezuela, has been comprehensively studied and compared to previously studied diamond...from a new, undiscovered kimberlite source in the Guaniamo River basin. These rocks are similar in type to |  | | Journal (article/letter/editorial) | | discovered super-deep paragenesis (with ferroan periclase + magnesium-substituted perovskite and other specific...sills in Guaniamo, Venezuela. In addition, placer diamond crystals from Yakutia, the Urals, Venezuela and...including the Yakutian pipes, deposits of the Guaniamo area (Venezuela) and the Coromandel area (Brazil), with...Coromandel area, Brazil, and those from Guaniamo, Venezuela, plot as group 2a in Figure 3, whereas they...in the diamond crystals of the Coromandel and Guaniamo (see below). Other defect centers “Platelets” |  | Kaminsky, F., Zakharchenko, O., Davies, R., Griffin, W., Khachatryan-Blinova, G., Shiryaev, A. (2001) Superdeep diamonds from the Juina area, Mato Grosso State, Brazil. Contributions to Mineralogy and Petrology, 140 (6) 734-753 doi:10.1007/s004100000221 | Journal (article/letter/editorial) | | diamonds (sample no.) Monomineral inclusions Fe-periclase 20 (incl. three grains in no. 3±15, and two grains...Associations Fe-periclase+ilmenite Fe-periclase+spinel Fe-periclase+``olivine'' Fe-periclase+SiO2 CaSi-perovskite+Ni...diamonds from Siberia, Arkhangelsk, South Africa, Venezuela and Brazil. Nitrogen-free and low-nitrogen diamonds...(Yakutia) Sloan, USA DO27, Canada Guaniamo placer deposit, Venezuela Rio Sao Luiz placer deposit, Brazil...Bulanova GP (1997) Diamonds from the Guaniamo area, Bolivar state, Venezuela. Mem VIII Congr Geologico Venezolana |  | | Journal (article/letter/editorial) | | features and associations of some grains of ferroan periclase gave reasons to suggest an origin within the D”...and halide inclusions associated with wüstite + periclase, presumably from the D” layer (Kaminsky et al...Liaoning, China (Gorshkov et al. 1997), from Guaniamo, Venezuela (with high Ti, 15.2 wt.% TiO2; Sobolev et...phases that include the association: wüstite + periclase from the D” layer at the core– mantle boundary...D” layer, along with the association wüstite + periclase. The presence of native iron and graphite, in |  | Chepurov, A. I., Zhimulev, E. I., Eliseev, A. P., Sonin, V. M., Fedorov, I. I. (2009) The genesis of low-N diamonds. Geochemistry International, 47 (5) 522-525 doi:10.1134/s0016702909050085 | Journal (article/letter/editorial) | | al., “Unusual Upper Mantle beneath Guaniamo, Guyana Shield, Venezuela: Evidence from Diamond Inclusions...al., “The Occurrence of Moissanite and Ferro-Periclase as Inclusions in Diamond,” in Extended Abstracts |  | | Journal (article/letter/editorial) | | the formation of basic oxide associations of periclase–wustite solid solutions and stishovite. The peritectic...paragenesis with the phases of completely miscible periclase–wustite solid solutions. The paragenetic intergrowths...association of stishovite with the phases of periclase–wustite solid solutions. This reaction was predicted...that FPer and MWus are the phases of complete periclase–wustite solid solutions (Per ⋅ Wus)ss. The melting...conditions are indicated by black spots. L, melt; Per, periclase; Wus, wustite; FPer, ferropericlase; MWus, magnesiowustite; |  | | Journal (article/letter/editorial) | | al., 2005); moreover, a paragenesis of ferroan periclase and other minerals that are possibly of lower...(2010) Zincochromite from the Guaniamo River diamondiferous placers, Venezuela: evidence of its metasomatic |  | | Journal (article/letter/editorial) | | Erzgebirge North Qaidam Dabie C.A.R. (Carbonado) Guaniamo Equator Sulawesi Kankan Junia (São Luiz) Poxoréu...transition zone, silicate perovskite plus ferro-periclase replace ringwoodite. Ferropericlase – (or magnesiowüstite)...Mg2SiO4 = MgSiO3 + MgO. IMA suggests ferroan periclase. Pyrolite – coined by A.E. Ringwood for a model |  | Matrosova, Ekaterina A., Bobrov, Andrey V., Bindi, Luca, Pushcharovsky, Dmitry Yu., Irifune, Tetsuo (2020) Titanium-rich phases in the Earth's transition zone and lower mantle: Evidence from experiments in the system MgO–SiO2–TiO2(±Al2O3) at 10–24 GPa and 1600 °C. Lithos, 366. 105539pp. doi:10.1016/j.lithos.2020.105539 | Journal (article/letter/editorial) | | garnet), and lower mantle (bridgmanite-hiroseite, periclase-wüstite, CaSiO3 perovskite), which are responsible...depleted in Mg from the Juina (Brazil) and Guaniamo (Venezuela) areas (Kaminsky et al., 2000, 2001) are...increasing pressure it decomposes to form MgO periclase plus orthorhombic OI-type (Pbca) TiO2. Akaogi...Khachatryan-Blinova, G.K., 2000. Diamond from the Guaniamo area, Venezuela. Canad. Mineral. 38(6), 13471370. Kato |  | Wirth, Richard, Vollmer, Christian, Brenker, Frank, Matsyuk, Stanislav, Kaminsky, Felix (2007) Inclusions of nanocrystalline hydrous aluminium silicate “Phase Egg” in superdeep diamonds from Juina (Mato Grosso State, Brazil) Earth and Planetary Science Letters, 259 (3) 384-399 doi:10.1016/j.epsl.2007.04.041 | Journal (article/letter/editorial) | | South Africa, Australia, USA, Canada, Guinea, Venezuela and Brazil (Scott-Smith et al., 1984; Otter and...2005). Among those mineral inclusions are: Fe-periclase, CaSi-walstromite (former CaSi-perovskite), low...Khachatryan-Blinova, G.K., 2000. Diamonds from the Guaniamo area, Venezuela. Canadian Mineralogist 38 (6), 1347–1370...Diamond from the Los Coquitos Area, Bolivar State, Venezuela. Canadian Mineralogist 44 (2), 661–678. Kirby |  | | Journal (article/letter/editorial) | | composed the nanometre-sized inclusion 1; (I) – Fe-periclase, carbonate, K-phase. Ga intensity in the spectra...1: (C) – phlogopite; (D) – apatite; (E) – Fe-periclase (?); (F) – magnetite; (G) – dolomite and K, Cl...Barron, K.M. (1998): Unusual Upper Mantle beneath Guaniamo Guyana Shield: Evidence from diamond inclusions |  | | Journal (article/letter/editorial) | | Schulze Schulze (2001) Los Indios Sill Guaniamo, Venezuela Sill D. Channer Kaminsky et al. (2004)...Neoproterozoic ‘anomalous’ kimberlites of Guaniamo, Venezuela: Mica kimberlites of isotopic transitional...861^866. Treiman, A. H. & Essene, E. J. (1984). A periclase^dolomite^calcite carbonatite from the Oka complex |  | | Journal (article/letter/editorial) | | analyses were: fluorite (FKa); albite (NaKa); periclase (MgKa); synthetic Al2O3 (AlKa); diopside (SiKa);...pyrochloregroup minerals from the Guaniamo kimberlites, Venezuela. Lithos, 112, 976 985. Silva, M.V.S |  | | Journal (article/letter/editorial) | | Al, pure manganese for Mn, pure iron for Fe, periclase for Mg, BaF2 for Ba, NaCl for Cl. Minerals 2019...K.M. Unusual upper mantle beneath Guaniamo, Guyana Shield, Venezuela: Evidence from diamond inclusions |  | | Book | | Macrocrysts and their Inclusions, Guaniamo Kimberlite Field, Venezuela. Primary and related diamond occurrences...of Carbon Recycling. The Guaniamo diamond region, Bolivar state, Venezuela: a new kimberlite province...W.T., Canada. 392 Diamonds from the Guaniamo area, Venezuela. 395 Kelemen, P.B. One view on the genesis...Trace Elements in Inclusion-free Diamonds from Venezuela and Arkhangelsk Deposits. Garnet - clinopyroxene...A unique eclogitic source of Guaniamo diamonds, Guyana shield, Venezuela. P.F.N., Barron, K.M Crystalline |  | Griffin, William L., Huang, Jin-Xiang, Thomassot, Emilie, Gain, Sarah E. M., Toledo, Vered, O’Reilly, Suzanne Y. (2018) Super-reducing conditions in ancient and modern volcanic systems: sources and behaviour of carbon-rich fluids in the lithospheric mantle. Mineralogy and Petrology, 112. 101-114 doi:10.1007/s00710-018-0575-x | Journal (article/letter/editorial) | | mantle. However, estimates of the fO2 of isolated periclase inclusions in apparently lower-mantle diamonds...populations from the Jericho (Slave Craton) and Guaniamo (Venezuela) kimberlites and the Dachine komatiites (French |  | Righter, K., Sutton, S., Danielson, L., Pando, K., Schmidt, G., Yang, H., Berthet, S., Newville, M., Choi, Y., Downs, R. T., Malavergne, V. (2011) The effect of fO2 on the partitioning and valence of V and Cr in garnet/melt pairs and the relation to terrestrial mantle V and Cr content. American Mineralogist, 96 (8) 1278-1290 doi:10.2138/am.2011.3690 | Journal (article/letter/editorial) | | oxidation state of Cr in lower mantle phases: Periclase and magnesium silicate perovskite. American Mineralogist...western Guyana Shield, Venezuela: Evidence from diamonds and xenocrysts in Guaniamo kimberlites. Geochimica |  | Bataleva, Yuliya V., Palyanov, Yuri N., Sokol, Alexander G., Borzdov, Yuri M., Bayukov, Oleg A. (2016) Wüstite stability in the presence of a CO 2 -fluid and a carbonate-silicate melt: Implications for the graphite/diamond formation and generation of Fe-rich mantle metasomatic agents. Lithos, 244. 20-29 doi:10.1016/j.lithos.2015.12.001 | Journal (article/letter/editorial) | | “paradoxal” features of wüstite (in contrast to periclase) that emerged from extensive studies of oxidation-reduction...Barron, K.M., 1998. Unusual upper mantle beneath Guaniamo, Guyana shield: evidence from diamond inclusions |  | | Journal (issue) | | sills and placer deposits in the Guaniamo area of W Bolivar State, Venezuela, have been characterized by morphology...the placer deposits were derived mostly from the Guaniamo kimberlite sills. P-T estimates that most originated...phase-petrology investigations of tiny ferro-periclase inclusions in diamonds for which a lower mantle...always been proposed. However, unlike the ferro-periclase inclusions, baddeleyites also record chronological...characterizing natural-color, 45 —Uzbekistan, 362 —Venezuela, 489 'Dianite' (see Nephrite) Dichroism, pseudo- |  | | Journal (article/letter/editorial) | | performed using natural and synthetic standards: periclase (Mg), Al2O3 (Al), diopside (Si), rutile (Ti),...2010. Zincochromite from the Guaniamo River diamondiferous placers, Venezuela: evidence of its metasomatic |  | Castillo-Oliver, Montgarri, Melgarejo, Joan Carles, Galí, Salvador, Pervov, Vladimir, Gonçalves, Antonio Olimpio, Griffin, William L., Pearson, Norman J., O'Reilly, Suzanne Y. (2017) Use and misuse of Mg- and Mn-rich ilmenite in diamond exploration: A petrographic and trace element approach. Lithos, 292. 348-363 doi:10.1016/j.lithos.2017.09.021 | Journal (article/letter/editorial) | | following: Mg ( Kα, TAP, ACCEPTED MANUSCRIPT periclase), Al (Kα, TAP, corundum), Si (Kα, TAP, diopside)...Khachatryan-Blinova, G.K., 2000. Diamond from the Guaniamo area, Venezuela. Can. Mineral. 38, 1347–1370. doi:10.2113/gscanmin |  | | Journal (article/letter/editorial) | | 1998. Unusual upper mantle beneath Guaniamo, Guyana Shield, Venezuela: evidence from diamond inclusions...– kyanite, L – liquid, Mgs – magnesite, Per – periclase, Prp – pyrope, Qz – quartz, PT Sti – stishovite |  | | Book (volume) | | Ca—wollastonite; Ti—rutile; Al—corundum; Fe, Mn—metals; Mg—periclase; Na—jadeite; K—orthoclase; Na and K were analysed...pressures and temperatures measured by the brucite-periclase equilibrium. Contrib Mineral Petr 125(2–3): 200–212...western Guyana Shield, Venezuela: Evidence from diamonds and xenocrysts in Guaniamo kimberlites. Geochim...the overlying mantle lithosphere. 0 @ 1500˚C Periclase + V Magnesite For s Ma terite gne + V site 4...referred to collectively as the Perovskite and Periclase Suite. Attention is focussed upon distinguishing |  | | Book | | NaAl3Si3O10(OH)2 Pyrochlore (Ca, Na)2(Nb, Ta)2O6(O, OH, F) Periclase MgO Pyrophyllite Al2Si4O10(OH)2 Phlogopite KMg3AlSi3O10(F...Al, pure manganese for Mn, pure iron for Fe, periclase for Mg. Date reduction was performed using the...concerned with the bridgmanite–Ca–perovskite–(periclase ↔ wustite)ss –stishovite system. Experimentally...it is taken into consideration the unlimited periclase-wustite solid solutions (MgOFeO)ss (FPer/MWus)...subsolidus diagram for the lower mantle system periclase Per–stishovite Sti–wustite Wus–Ca-perovskite CaPrv |
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