 | Pearson, D. G., Boyd, F. R., Haggerty, S. E., Pasteris, J. D., Field, S. W., Nixon, P. H., Pokhilenko, N. P. (1994) The characterisation and origin of graphite in cratonic lithospheric mantle: a petrological carbon isotope and Raman spectroscopic study. Contributions to Mineralogy and Petrology, 115 (4) 449-466 doi:10.1007/bf00320978 | Journal (article/letter/editorial) | | Branch, Novosibirsk, Russia Abstract. Graphite-bearing peridotites, pyroxenites and eclogite xenoliths...thermobarometry. Graphite crystals in peridotie, pyroxenite and eclogite xenoliths have X-ray diffraction...range displayed by peridotite-suite graphite and diamond encompasses the carbon isotope range observed in...the fluids that deposited carbon, as graphite or diamond, in cratonic peridotites lies within the convecting...graphite within the mantle is very similar to that of diamond. It is unlikely that this restricted occurrence |  | | Journal (article/letter/editorial) | | geothermometry and geobarometry applicable to garnet lherzolite are reviewed with reference to recent experimental...studies of the equilibration of natural garnet lherzolite and it is concluded that the Wells and Mori-Green...The geothermometers available for estimating lherzolite equilibration temperatures are discussed in some...CL = chromite lherzolite; G C L = garnet chromite lherzolite; G L = garnet lherzolite; GP = garnet pyroxenite...in their study of the solvus in natural garnet lherzolite compositions. We conclude that the present solvus |  | | Journal (article/letter/editorial) | | iherzolite, ml mica, oi oii~inc, opx orthopyroxene, px pyroxenite, rt rutile, web websterite. G a r n e t type...analysis of garnet from a sheared phlogopite-garnet lherzolite from T h a b a Putsoa. Thompson (1975) recorded...50-1620(370i 210-7800(2000) 330-3800(2000) Lherzolite and ultramafic rocks Garnet Olivine Orthopyroxene...et al. 1976) are consistent with those for our diamond-free specimens, and in particular they fall close...granular lherzolites, kimberlite groundmass, and diamond inclusions; 0.04 (O 0.01), discrete nodule inclusions; |  | | Journal (article/letter/editorial) | | c a t e / o r e g e o r ev Kimberlite-hosted diamond deposits of southern Africa: A review Matthew Field...April 2008 Keywords: Diamond Kimberlite Diatreme Pipe Dyke Mantle-xenolith Diamond-inclusion A B S T R...of diamonds. The formation of kimberlite-hosted diamond deposits is a long-lived and complex series of... Dating of inclusions in diamonds showed that diamond growth occurred several times over geological time...their geology, mantle xenolith, xenocryst and diamond characteristics and production statistics. These |
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