 | | Journal (article/letter/editorial) | | SHORT COMMUNICATIONS Non-space-group absences in sapphirine X-SAY studies of a number of sapphirines indicate...precession-camera techniques with a pale-blue sapphirine from Fiskernaesset, West Greenland are a = 9...Statistical analyses of the intensities of this sapphirine indicate a centre of symmetry. The approximate...comparable reflections in the diffraction pattern of a sapphirine from Mautia Hill, Tanganyika studied by McKie...structural investigations of the Fiskernaesset sapphirine show that the oxygens are approximately cubic-close-packed |  | | Journal (article/letter/editorial) | | 1976 Sapphirine,sillimanite,and garnet in granulitexenolithsfrom Stockdalekimberlite, Kansas H E N n...of the xenolith during the rapid ascentof the kimberlite to the surface. Most striking is the replacementof...replacementof green aluminous spinel by sapphirine, (Mgr rrFeo46A14 us)vr(A14 6?Si1 33)rvor'.The replacementof...crust in Kansas. lntroduction Severaligneous bodies intrude Permian sediments in Riley County, east-central...east-central Kansas. Brookins (1970) has describedthese bodies and has identified them as kimberlite. One intrusion |  | | Journal (article/letter/editorial) | | DECEMBER 1986, VOL. 50, PP. 635-40 Mantle-derived sapphirine W. L. GRIFF1N Mineralogisk-Geologisk Museum,...breccia pipe (New South Wales, Australia) contains sapphirine in equilibrium with aluminous clinopyroxene,...~ to c. 1000 ~ at pressures near 15 kbar. The sapphirine is close to the 7: 9 : 3 composition, suggesting...occurrence of sapphirine has also been recorded in mantlederived xenoliths from the Stockdale kimberlite in Kansas...Kansas. Re-examination of sapphirine granulites from Finero suggests that their primary assemblages and |  | | Journal (article/letter/editorial) | | Springer-Verlag 1987 Reduced sapphirine granulite xenoliths from the Lace Kimberlite, South Africa; implications...University of Chicago, Chicago, I1 60637, USA Abstract. Sapphirine-bearing granulites, together with sap-...granulites and eclogites, occur as xenoliths in the kimberlite of the Lace diatreme that penetrates the Kaapvaal... S. Africa. Absence of (calculated) Fe 3+ in sapphirine, garnet and sillimanite, together with presence...granulite-facies metasediment xenoliths in the kimberlite of the Voorspoed Mine, Kroonstadt district, which |  | | Journal (article/letter/editorial) | | rltungameteorite, metallography, 1139. Aroostook County, Maine, ganophyllite, 893. Arrojadite, Rhodesia...area, Singhbhum, India, 671. Big Creek, Fresno County, California, celsian, 914. BIGGAR (G. M.), Apatite...Re-examination of pyrope from the Stockdale kimberlite, Riley County, Kansas, 450. BROUSSE (R.), see LEMAITRE(0...yttrotantalite, 50. Dundas, Montagu County, Tasmania, Dallas gem mine, San Benito County, California, melanite, 775...KUMBASAR (I.), 621. Fiskernaesset, West Greenland, sapphirine, 449. Flame photometry, determination of feldspars |  | | Journal (article/letter/editorial) | | 102:422-428 9 Springer-Verlag1989 The stability of sapphirine + clinopyroxene: implications for phase relations...relations in sapphirine-bearing basic granulites at Finero, Italy, suggest that sapphirine and aluminous...found in situ, although it is also known from kimberlite and breccia pipe nodules elsewhere. The reactions...the phases sapphirine-spinel-orthopyroxene-clinopyroxene-garnet-anorthite and sapphirine-two pyroxen...univariant reactions, is proposed. It is inferred that sapphirine + diopside are stable relative to spinel-bearing |  | | Journal (article/letter/editorial) | | Electronic Absorption Spectra of Chromium-Bearing Sapphirine K. Langer 1, A.N. Platonov 2, S.S. Matsuk 2,...spinel-websterite xenolites from the Yakutian kimberlite pipes Noyabrskaya (N) and Sludyanka (S1), respectively...respectively. The crystallochemical formulae of sapphirine crystals from such xenolites were determined...structure. Another weak band at 23 000 c m - a in the sapphirine-N spectra is attributed to low symmetry splitting...1 7 3 0 cm -1 and B = 6 8 5 cm -1 of Cr 3+ in sapphirine. Crystallochemical and spectroscopic arguments |  | | Journal (article/letter/editorial) | | Science Publishers B.V., Amsterdam An empirical sapphirine-spinel Mg-Fe exchange thermometer and its application...J.V. and Greenough, J.D., 1991. An empirical sapphirine-spinel Mg-Fe exchange thermometer and its application...Nova Scotia, Canada. Lithos, 26: 317-332. Spinel-sapphirine-corundum-rutileparageneses in metapelitic xenoliths...these assemblages are estimated from an empirical sapphirine-spinel Mg-Fe exchange thermometer derived from...data on both silica-saturated and undersaturated sapphirine granulites. Linear regression (R=0.81) of the |  | Su, B.-X., Zhang, H.-F., Hu, Y., Santosh, M., Tang, Y.-J., Xiao, Y. (2012) The genesis of mantle-derived sapphirine. American Mineralogist, 97 (5) 856-863 doi:10.2138/am.2012.3859 | Journal (article/letter/editorial) | | 856–863, 2012 The genesis of mantle-derived sapphirine Ben-Xun Su,1,* Hong-Fu Zhang,1,* Yan Hu,1 M....Akebono-cho 2-5-1, Kochi 780-8520, Japan 1 Abstract Sapphirine, a typical ultrahigh-temperature metamorphic...report the occurrence and characteristics of sapphirine in a mantle-derived xenolith from the Cenozoic...a clinopyroxene, spinel, and sapphirine assemblage, with the sapphirine occurring as the reaction rim...contents, similar to those of minerals from other sapphirine-bearing rocks reported from high-Mg-Al granulites |  | France, L., Ouillon, N., Chazot, G., Kornprobst, J., Boivin, P. (2009) CMAS 3D, a new program to visualize and project major elements compositions in the CMAS system. Computers & Geosciences, 35 (6) 1304-1310 doi:10.1016/j.cageo.2008.07.002 | Journal (article/letter/editorial) | | ple Pyrope Pyrope, pyrope, Prp, prp Sapphirine Sapphirine, sapphirine, Spr, spr Spinel Spinel, spinel, Spl...spinel; Gt: garnet; Cpx: clinopyroxene and Sapph: sapphirine) and are located in the P–T space on Fig. 3....Grégoire et al., 1994) and the one involving the sapphirine has been evidenced by Christy (1989). These reactions...clinopyroxene, garnet, spinel, plagioclase and sapphirine. ARTICLE IN PRESS L. France et al. / Computers...the Opx–Pl–Sp plane implies that the amount of sapphirine formed during the reaction is very small, which |  | | Journal (article/letter/editorial) | | (1975) 9 by Springer-Verlag 1975 Instability of Sapphirine at High Pressures D. Ackermand and F. Seifert...through the solid- solid breakdown reaction sapphirine~'-pyrope =corundum+spinel, the univariant curve...stability field of sapphirine will expand towards lower temperatures. The occurrence of sapphirine in mantle depths...with total pressures not exceeding 30 kb. Thus sapphirine is probably not a stable phase in the lower portions...asthenosphere. 1. Introduction During the past years sapphirine has been reported from an increasing number of |  | Grégoire, Michel, Cottin, Jean Yves, Giret, André, Mattielli, Nadine, Weis, Dominique (1998) The meta-igneous granulite xenoliths from Kerguelen Archipelago: evidence of a continent nucleation in an oceanic setting. Contributions to Mineralogy and Petrology, 133 (3) 259-283 doi:10.1007/s004100050451 | Journal (article/letter/editorial) | | Eifel (Germany, Witt and Seck 1987), southwestern USA (Wilshire et al. 1988), southeastern Australia (O'Reilly...such as metagabbros with or without garnet and sapphirine (Fig. 3) (the term of metagabbros includes the...plagioclase are garnet, sapphirine and a secondary clinopyroxene around orthopyroxene. Sapphirine coronites around...spinel; (2) a homogeneous sapphirine corona; (3) double coronas with internal sapphirine and external garnet...dierent types: (1) garnet-sapphirine; (2) garnet-clinopyroxene; (3) sapphirine-clinopyroxene. A distinctive |  | Xiao, Yan, Zhang, Hong-Fu, Liang, Zi, Su, Ben-Xun, Zhu, Bin, Sakyi, Patrick Asamoah (2018) Origin of sapphirine- and garnet-bearing clinopyroxenite xenoliths entrained in the Jiande basalts, SE China. Lithos, 304. 95-108 doi:10.1016/j.lithos.2018.02.004 | Journal (article/letter/editorial) | | Accepted Manuscript Origin of sapphirine- and garnet-bearing clinopyroxenite xenoliths entrained in Jiande...Su, Bin Zhu, Patrick Asamoah Sakyi , Origin of sapphirine- and garnet-bearing clinopyroxenite xenoliths...journal pertain. ACCEPTED MANUSCRIPT Origin of sapphirine- and garnet-bearing clinopyroxenite xenoliths...present petrological and geochemical data of sapphirine- and garnet-bearing clinopyroxenite xenoliths...clinopyroxene + garnet/kelyphite + spinel (± RI sapphirine). Clinopyroxene has high Mg# (89 – 93) and displays |  | | Journal (article/letter/editorial) | | peridotite massif, southern Spain: significance of sapphirine- and corundum-bearing mineral assemblages Tomoaki...present detailed microtextural relationships in sapphirine- and corundum-bearing aluminous mafic rocks alternating...Corundum is associated with spinel and plagioclase. Sapphirine occurs in two different mineralogical associations...former presence of kyanite as one of reactants. Sapphirine is partially converted to symplectitic aggregate...Keywords: Ronda peridotite massif; Mafic rock; Sapphirine; Corundum; Kyanite; High pressure 1. Introduction |  | | Journal (article/letter/editorial) | | on Fe and Mg partitioning between coexisting sapphirine and spinel: an empirical geothermometer and its...range 950–1100 ° C at 800 MPa to grow coexisting sapphirine and spinel-bearing metapelitic assemblages in...based on sapphirine-spinel need to be revised upward by 120–160 ° C. Key-words: sapphirine-spinel granulites...metamorphosed under lower crustal conditions, such as the sapphirine-spinel bearing granulites, are instrumental to... the reliable estimation of temperature from sapphirine-bearing assemblages is faced with several problems |  | Sutthirat, C., Saminpanya, S., Droop, G. T. R., Henderson, C. M. B., Manning, D. A. C. (2001) Clinopyroxene-corundum assemblages from alkali basalt and alluvium, eastern Thailand: constraints on the origin of Thai rubies. Mineralogical Magazine, 65 (2) 277-295 doi:10.1180/002646101550253 | Journal (article/letter/editorial) | | common origin for the two types of occurrence. Sapphirine (Mg/(Mg+Fe2+) = 0.91 0.94) and garnet (py56 67alm11...WORDS : corundum, ruby, clinopyroxene, pyrope, sapphirine, alkali basalt, Thailand, xenocryst. Introduction...ferromagnesian silicate minerals such as garnet, sapphirine and clinopyroxene and thus fall into the ‘metamorphic’...blue-green pleochroism in thick section. Sapphirine Sapphirine occurs in two ruby samples from Bo Na Wong...found no sapphirine in any of our rubies from Bo Rai, Koivula (1987) reported a sapphirine inclusion |  | SILLS, JANE D., ACKERMAND, DIETRICH, HERD, RICHARD K., WINDLEY, BRIAN F. (1983) Bulk composition and mineral parageneses of sapphirine-bearing rocks along a gabbro-lherzolite contact at Finero, Ivrea Zone, N Italy. Journal of Metamorphic Geology, 1 (4) 337-351 doi:10.1111/j.1525-1314.1983.tb00279.x | Journal (article/letter/editorial) | | Bulk composition and mineral parageneses of sapphirine-bearing rocks along a gabbro-lherzolite contact...University, Leicester LEI 7 R H , UK Abstract. Sapphirine occurs in a 3-5 m wide zone between amphibole-lherzolite...interbanded with spinel pyroxenites, which may contain sapphirine replacing spinel. All minerals are very magnesian...hornblende k spinel. Up to 16wt % CaO does not inhibit sapphirine formation and it is the unusually Mg-rich nature...nature of the host rocks which allows sapphirine development. The early igneous assemblage was replaced |  | | Journal (article/letter/editorial) | | Springer-Verlag1989 Petrochemistry of eclogites from the Koidu Kimberlite Complex, Sierra Leone Doris V. Hills and Stephen...University of Massachusetts, Amherst, MA 01003, USA Abstract. Petrography, mineral and bulk chemistry...eclogites (garnet and clinopyroxene) from the Koidu Kimberlite Complex, Sierra Leone, are presented in the first...eclogite is the sole polymineralic xenolith in kimberlite. Over 2000 xenoliths were collected, of which...reported as the sole polymineralic xenolith in kimberlite from only four localities worldwide (Roberts |  | Lal, R. K., Ackermand, D., Seifert, F., Haldar, S. K. (1978) Chemographic relationships in sapphirine-bearing rocks from Sonapahar, Assam, India. Contributions to Mineralogy and Petrology, 67 (2) 169-187 doi:10.1007/bf01046574 | Journal (article/letter/editorial) | | Springer-Verlag 1978 Chemographic Relationships in Sapphirine-Bearing Rocks From Sonapahar, Assam, India R...Germany Abstract. Silica-deficient rocks in which sapphirine coexists with cordierite, gedrite, chondrodite...relics within cordierite in one sample of the sapphirine-spinel-cordierite-phlogopite-bearing rock. Sapphirines...brucite > gedrite > cordierite > phlogopite > sapphirine > spinel. The consistent topology of the observed...suggested that the unusual bulk composition of the sapphirine-bearing rocks viz. higher A1203, MgO and M g |  | | Journal (article/letter/editorial) | | classification scheme for mantle-derived garnets in kimberlite: a tool for investigating the mantle and exploring...for classification of mantle-derived garnets in kimberlite. Simple chemical screens have been developed...xenoliths in kimberlite. Although crustal garnets are typically uncommon as xenocrysts in kimberlite, the first...evaluating the source (crust vs. mantle) of garnet in kimberlite exploration samples. Subsequent steps divide...Elsevier B.V. All rights reserved. Keywords: Garnet; Kimberlite; Upper mantle; Eclogite; Peridotite 1. Introduction |  | | Book | | one? First, in this book I have concentrated on kimberlite as an individual rock-type and a sampler of the...have concentrated more on specific aspects of kimberlite and upper mantle geology; as a result I have...Volumes of the two International Conferences on Kimberlite held at Capetown in 1973 and Santa Fe in 1977...who did much to stimulate my early interest in kimberlite. I acknowledge also the following people for.... . . . . . . . . . .. Indirect Evidence for Kimberlite Intrusions. .. Summary. . . . . . . . . . . |  | | Journal (article/letter/editorial) | | attributed these features to contamination by the host kimberlite. It is thought that similar processes have occurred...other volcanics (Boyd, F. R., ed.). Proc. Int. Kimberlite Conference. Am. Geophys. Union, 2, 59-86. Irving...(1976) Sapphirine, sillimanite and garnet in granulite xenoliths from Stockdale Kimberlite, Kansas. Am....N. W. (1977) Granulite xenoliths from Lesotho kimberlite pipes and the lower continental crust. Nature |  | | Book (volume) | | Wollastonite Pectolite Bustamite Rhodonite Pyroxmangite Sapphirine Aenigmatite Rhonite Serendibite 547 564 57 5...griquaite and discrete nodules of the Tbuba Putosa kimberlite pipe. Stippled area A', outer zones of subcalcic... Anal. H. G. Scha.rbert. 7 Bronz.ite, pyrope-sapphirine rock, Ana bar Massif, U .S.S.R. ( Lutts and Kopaneva...Pyroxenes Orthopyroxene Analyses (nodules in kimberlite, uJtrabasic and basic rocks) l 2 3 4 SiO...Enstatite, lherzolite nodu le, Green Knobs, Navajo County, Anzona (O'Hara and Mercy, 1966) Enstatae, garnet |  | | Book (volume) | | AmericanGeophysicalUnion Washington,D.C. 20009 1979 Kimberlite Conference Preface Since the first edition...was published in 1979, the Third International Kimberlite Conference was held in Clermont-Ferrand in 1982...concerning rocks now misleadingly referred to as Kimberlite will be removea. Diamonds received attention...still there persists the belief that diamonds an• kimberlite are genetically related. And this in spite of...one can separate out the essential minerals of kimberlite. This comment is pertinent to isotopic studies |  | | Book | | University of Southern California, Los Angeles, CA 90089, USA. P. JONATHAN PATCHETT Department of Geosciences,...Proterozoic high-Mg and komatiitic volcanics, Gunnison County, Colorado. Geol. Assoc. Can., Abstracts with Programs...States and Provinces: G = Georgia; L4 = Iowa; K = Kansas; L = Labrador; MI = Michigan; MN = Minnesota; N...2000 km long loop that extends from northeastern Kansas ENE through Iowa and eastern Minnesota, eastward...Midcontinent Geophysical Anomaly in northeastern Kansas. Tectonics, 3 (3): 367-384. Sevigny, J.H., 1988 |
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