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Garnet peridotite xenoliths in South African kimberlite pipes and their petrogenesis

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Abstract

Whole rock analyses are presented for nine garnet peridotite, two garnet pyroxenite, one garnet free peridotite and two highly altered garnet peridotite xenoliths from South African kimberlite pipes. Garnets from eight of these samples have also been chemically analysed, while olivine compositions in the twelve fresh samples have been estimated by X-ray diffraction. The chemistry and mineralogy of these specimens are compared with the results of previous studies, and the controversies concerning the petrogenesis of these xenoliths are discussed in detail.

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References

  • Bezrukov, V. A., Bezrukov, G. N., Butuzov, V. P., Varagin, V. S., Voroseikin, K. F., Kirova, N. F., Litkin, Yu. A.: Morphology of crystals of diamond, synthesized at wide intervals of temperature and pressure. [Russian.] Zap. Vses. Mineralog. Obshchestva 95, 1–9 (1966).

    Google Scholar 

  • Birch, F.: Elasticity and constitution of the earth's interior. J. Geophys. Res. 57, 227–286 (1952).

    Google Scholar 

  • Boyd, F. R., Macgregor, I. D.: Ultramafic rocks. Carnegie Inst. Wash. Yearb. 63, 152–156 (1964).

    Google Scholar 

  • Bryhni, I.: Reconnaissance studies of gneisses, ultrabasites, eclogites and anorthosites in Outer Nordfjord, Western Norway. Norg. Geol. Undersokelse 241, 1–68 (1966).

    Google Scholar 

  • Carswell, D. A.: Picritic magma-residual dunite relationships in garnet peridotite at Kalskaret near Tafjord, South Norway. Contr. Mineral. and Petrol. 19, 97–124 (1968a).

    Google Scholar 

  • —: Possible primary upper mantle peridotite in Norwegian basal gneiss. Lithos 1, 322–355 (1968b).

    Google Scholar 

  • Clark, S. P., Jr., Ringwood, A. E.: Density distribution and constitution of the mantle. Rev. Geophys. 2, 35–88 (1964).

    Google Scholar 

  • —: Density, strength and constitution of the mantle. In: Gaskell, T. F. (ed.): The earth's mantle, p. 111–124. London: Academic Press 1967.

    Google Scholar 

  • Coleman, R. G., Lee, D. E., Beatty, L. B., Brannock, W. W.: Eclogites and eclogites; their differences and similarities. Bull. Geol. Soc. Am. 76, 483–508 (1965).

    Google Scholar 

  • Davidson, C. F.: On diamantiferous diatremes. Econ. Geol. 59, 1368–1380 (1964).

    Google Scholar 

  • —: Diamentiferous diatremes: a reply. Econ. Geol. 60, 1735–1739 (1965).

    Google Scholar 

  • —: The kimberlites of the U.S.S.R. In: Wyllie, P. J. (ed.), Ultramafic and related rocks, p. 251–261. New York: John Wiley & Sons 1967a.

    Google Scholar 

  • —: The so-called “cognate xenoliths” of kimberlite. In: Wyllie, P. J. (ed.), Ultramafic and related rocks, p. 342–346. New York: John Wiley & Sons 1967b.

    Google Scholar 

  • Dawson, J. B.: Basutoland kimberlites. Bull. Geol. Soc. Am. 73, 545–560 (1962).

    Google Scholar 

  • —: Geochemistry and origin of kimberlite. In: Wyllie, P. J. (ed.), Ultramafic and related rocks, p. 269–278. New York: John Wiley & Sons 1967.

    Google Scholar 

  • —: Recent researches on kimberlite and diamond geology. Econ. Geol. 63, 504–511 (1968).

    Google Scholar 

  • Eskola, P.: On the eclogites of Norway. Skrifter Vidensk. Selsk. Christiania, Mat.-Naturv. Kl., I, No. 8, 1–118 (1921).

  • Fermor, L. L.: On a new chrome-garnet. Geol. Mag. 89, 145–147 (1952).

    Google Scholar 

  • Fiala, J.: Pyrope in some garnet peridotites of the Czech Massif. Krystalinikum 3, 55–74 (1965).

    Google Scholar 

  • —: The distribution of elements in mineral phases of some garnet peridotites of the Bohemian Massif. Krystalinikum 4, 31–53 (1966).

    Google Scholar 

  • Green, D. H., Ringwood, A. E.: The genesis of basaltic magmas. Contr. Mineral. and Petrol. 15, 103–190 (1967a).

    Google Scholar 

  • —: The stability fields of aluminous pyroxene peridotite and garnet peridotite and their relevance in upper mantle structure. Earth Planet. Sci. Letters 3, 151–160 (1967b).

    Google Scholar 

  • Harris, P. G., Reay, A., White, I. G.: Chemical composition of the upper mantle. J. Geophys. Res. 72, 6359–6369 (1967).

    Google Scholar 

  • Holmes, A.: A contribution to the petrology of kimberlite and its inclusions. Trans. Geol. Soc. S. Afr. 39, 379–428 (1936).

    Google Scholar 

  • Ito, K., Kennedy, G. C.: Melting and phase relations in a natural peridotite to 40 kilobars. Am. J. Sci. 265, 519–538 (1967).

    Google Scholar 

  • Jackson, E. D.: X-ray determinative curve for natural olivine of composition Fo80–90. U.S. Geol. Surv. Profess. Papers 400-B, 432–434 (1960).

    Google Scholar 

  • Kopecký, L., Sattran, V.: Zur Genese der Pyrope im tschechischen Mittelgebirge. Vestn. Ustredniho Ustavu Geol. 37, 269–283 (1962).

    Google Scholar 

  • —: Buried occurrences of pyrope-peridotite and the structure of the crystalline basement in the extreme S.W. of the České Středohoři mountains. Krystalinikum 4, 65–86 (1966).

    Google Scholar 

  • Kryukov, A. V.: Genesis of pyrope-peridotite inclusions in the pipes of North Minusinsk Depression and their comparison with peridotites of the České Středohoři Mountains. Krystalinikum 4, 185–200 (1966).

    Google Scholar 

  • Kushiro, I., Aoki, Ken-Ichiro: Origin of some eologite inclusions in kimberlite. Am. Mineralogist 53, 1347–1367 (1968).

    Google Scholar 

  • Lappin, M. A.: The field relationship of basic and ultrabasic masses in the basal gneiss complex of Stadlandet and Almklovdalen, Nordfjord, south-western Norway. Norsk Geol. Tidsskr. 46, 439–494 (1966).

    Google Scholar 

  • MacDougall, I., Green, D. H.: Excess radiogenic argon in pyroxenes and isotopic ages on minerals from Norwegian eclogites. Norsk Geol. Tidsskr. 44, 183–196 (1964).

    Google Scholar 

  • MacGregor, I. D.: Stability fields of spinel and garnet peridotites in the synthetic system MgO-CaO-Al2O3-SiO2. Carnegie Inst. Wash. Yearb. 64, 126–134 (1965).

    Google Scholar 

  • —, Ringwood, A. E.: The natural system enstatite-pyrope. Carnegie Inst. Wash. Yearb. 63, 161–163 (1964).

    Google Scholar 

  • Mennell, L. P.: The geological structure of Southern Rhodesia. Quart. J. Geol. Soc. London 66, 353–375 (1910).

    Google Scholar 

  • Mercy, E. L. P.: Geochemistry of the mantle. In: Gaskell, T. F. (ed.), The earth's mantle, p. 421–443. London: Academic Press 1967.

    Google Scholar 

  • Meyer, H. O. A., Boyd, F. R.: Mineral inclusions in diamonds. Carnegie Inst. Wash. Yearb. 67, 130–135 (1968).

    Google Scholar 

  • Mikhailov, N. P., Rovsha, V. S.: Pyrope-bearing peridotites of the Bohemian Massif and their genesis. Krystalinikum 4, 87–107 (1966).

    Google Scholar 

  • Mikheyenko, V. I., Nenashev, N. I.: Absolute age of the kimberlites of Yakutia. Intern. Geol. Rev. 4, 916–924 (1962).

    Google Scholar 

  • Milashev, V. A., Krutoyarski, M. A., Rabhkin, M. I., Zirlich, Z. N.: Kimberlitic rocks and picritic porphyries of the north-eastern part of the Siberian platform. [Russian.] Tr. Nauchno-Issled. Inst. Geol. Arktiki 126, 1–215 (1963).

    Google Scholar 

  • Nixon, P. H., Hornung, G.: A new chromium garnet end member, knorringite, from kimberlite. Am. Mineralogist 53, 1833–1840 (1968).

    Google Scholar 

  • —, Knorring, O. von, Rooke, J. M.: Kimberlites and associated inclusions of Basutoland: a mineralogical and geochemical study. Am. Mineralogist 48, 1090–1132 (1963).

    Google Scholar 

  • O'Hara, M. J.: Primary magmas and the origin of basalts. Scot. J. Geol. 1, 19–40 (1965).

    Google Scholar 

  • —: Garnetiferous ultrabasic rocks of orogenic regions. In: Wyllie, P. J. (ed.), Ultramafic and related rocks, p. 167–172. New York: John Wiley & Sons 1967a.

    Google Scholar 

  • —: Mineral paragenesis in ultrabasic rocks. In: Wyllie, P. J. (ed.), Ultramafic and related rocks, p. 393–403. New York: John Wiley & Sons 1967b.

    Google Scholar 

  • —: The bearing of phase equilibria studies in synthetic and natural systems on the origin and evolution of basic and ultrabasic rocks. Earth-Sci. Rev. 4, 69–133 (1968).

    Google Scholar 

  • —, Mercy, E. L. P.: Petrology and petrogenesis of some garnetiferous peridotites. Trans. Roy. Soc. Edinburgh 65, 251–314 (1963).

    Google Scholar 

  • —: Eclogite, peridotite and pyrope from the Navajo Country, Arizona and New Mexico. Am. Mineralogist 51, 336–352 (1966).

    Google Scholar 

  • —, Yoder, H. S.: Formation and fractionation of basic magmas at high pressures. Scot. J. Geol. 3, 67–117 (1967).

    Google Scholar 

  • Rickwood, P. C.: On recasting analyses of garnet into end-member molecules. Contr. Mineral. and Petrol. 18, 175–198 (1968).

    Google Scholar 

  • —, Mathias, M., Siebert, J. C.: A study of garnets from eclogite and peridotite xenoliths found in kimberlite. Contr. Mineral. and Petrol. 19, 271–301 (1968).

    Google Scholar 

  • Ringwood, A. E.: Chemical evolution of the terrestrial planets. Geochim. Cosmochim. Acta 30, 41–104 (1966).

    Google Scholar 

  • Sarsadskikh, N. N., Blagulkina, V. A., Silin, Yu. I.: Absolute age of Yakutian kimberlites. Dokl. Akad. Nauk SSSR Earth Sci. Sect. 168, 48–50 (1966).

    Google Scholar 

  • Sastri, G. G. K.: Note on a chrome and two manganese garnets from India. Mineral. Mag. 33, 508–511 (1963).

    Google Scholar 

  • Schmitt, H. H.: Metamorphic eclogites of the Eiksund area, Sunnmore, Norway. (Abstract). Trans. Am. Geophys. Union 45, 128 (1964).

    Google Scholar 

  • Smulikowski, K.: An attempt at eclogite classification. Bull. Acad. Polon. Sci., Sér. Géol. Géograph. 12 (I), 27–33 (1964).

    Google Scholar 

  • —: Chemical differentiation of garnet and clinopyroxene in eclogites. Bull. Acad. Polon. Sci., Sér. Géol. Géogr. 13 (I), 11–18 (1965).

    Google Scholar 

  • Smulikowski, K.: Differentiation of eclogites and its possible causes. Lithos 1, 89–101 (1968).

    Google Scholar 

  • Sobolev, N. V.: Paragenetic types of garnet. I. Pyrope-almandine garnets from ultrabasic rocks and eclogites. [Russian.] Tr. Inst. Geol. i Geofiz. Sibirskoe otd. Akad. Nauk SSSR 15, 42–73 (1963).

    Google Scholar 

  • —: Rhombic pyroxenes from garnet peridotite and eclogite. Dokl. Akad. Nauk SSSR Earth Sci. Sect. 154, 110–111 (1964).

    Google Scholar 

  • —, Kuznetsova, I. K.: More facts on the mineralogy of eologite from Yakutian kimberlite pipes. Dokl. Akad. Nauk SSSR Earth Sci. Sect. 163, 137–140 (1965).

    Google Scholar 

  • —: Mineralogy of diamond-bearing eclogites. Dokl. Akad. Nauk SSSR Earth Sci. Sect. 167, 112–115 (1966).

    Google Scholar 

  • — Zyuzin, N. I.: The petrology of grospydite xenoliths from the Zagadochnaya kimberlite pipe in Yakutia. J. Petr. 9, 253–280 (1968).

    Google Scholar 

  • Wagner, P. A.: The diamond fields of Southern Africa. Transvaal Leader, Johannesburg. 347 p. (1914).

  • —: The evidence of kimberlite pipes on the constitution of the outer part of the earth. S. African J. Sci. 25, 127–148 (1928).

    Google Scholar 

  • Weiss, J.: Ultrabasic rocks of the West Moravian crystalline complex. Krystalinikum 4, 171–183 (1966).

    Google Scholar 

  • Williams, A. F.: The genesis of the diamond. 2 vols. London: Benn 1932.

    Google Scholar 

  • Wyllie, P. J.: Review. In: Wyllie, P. J. (ed.), Ultramafic and related rocks, p. 403–416. New York: John Wiley & Sons 1967.

    Google Scholar 

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Carswell, D.A., Dawson, J.B. Garnet peridotite xenoliths in South African kimberlite pipes and their petrogenesis. Contr. Mineral. and Petrol. 25, 163–184 (1970). https://doi.org/10.1007/BF00371129

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