| Ferroir, Tristan, Dubrovinsky, Leonid, El Goresy, Ahmed, Simionovici, Alexandre, Nakamura, Tomoki, Gillet, Philippe (2010) Carbon polymorphism in shocked meteorites: Evidence for new natural ultrahard phases. Earth and Planetary Science Letters, 290 (1) 150-154 doi:10.1016/j.epsl.2009.12.015 | Journal (article/letter/editorial) |
Editor: L. Stixrude Keywords: Haverö ureilite shock ultrahard carbon diamond diamond polytype a b s t r a c...of the Haverö meteorite which belongs to the ureilite class known to contain graphite and diamond was cut...cut and then polished as a thin section using a diamond paste. We identified two carbonaceous areas which...carbonaceous phases were not easily polishable by a diamond paste and would therefore imply larger polishing...R3m space group which structure is very close to diamond but with a partial occupancy of some of the carbon |
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occurrence and paragenetic relations: (1) minute diamond grains (up to 10 nm in size) that are overfilled...all chemical groups; (2) larger (10–10 000 nm) diamond grains enriched in fluid inclusions in association...bulk density of diamond grains equals 2.2 g/cm3, whereas the density of pure diamond is 3.5 g/cm3. The...pressure controlled not only the formation of fluid diamond nuclei, but also the anomalous distribution of...of oxygen isotopes between chondrules and the diamond-bearing matrix ( tan α = 1) inherent to the so-called |
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Geological Survey of Finland Bulletin 336 The development of geological sciences in Finland Edited by Heikki... Geological Survey of Finland, Bulletin 336 THE DEVELOPMENT OF GEOLOGICAL SCIENCES IN FINLAND Edited by HEIKKI...Mineral exploration and geologieal surveys in Finland before 1886 ... ... ............. . .. .. . . ...Preeambrian in Finland .... Maunu Härme: The hi story of petrologie study in Finland ....... . ........ Kai Hytönen: The hi story of mineralogy in Finland 1918- 1984 . . ... ... Kalevi Virkkala: History of |