...Aicheng Zhang; Weibiao Hsu; Rucheng Wang; Mingwei Ding Abstract Sixiangkou is a heavily shocked L6 chondrite that contains numerous shock-induced melt veins with varying widths. This paper focuses on pyroxene polymorphs in shock-induced melt veins in the meteorite and discusses their implication...

... in Taiban is close to those of the ringwoodite γ-(Mg 0.8 ,Fe 0.2 ) 2 SiO 4 in the Tenham meteorite, 799 and 845 cm −1 ( Sato and Nakamura 2010 ), and some of the ringwoodite in the lamellae of the Sixiangkou meteorite (22–24 wt% FeO), 799 and 844 cm −1 ( Chen et al. 2006 ). A possible explanation...

... O 8 -hollandite in the shocked Sixiangkou meteorite . Science , 287 , 1633 – 636 . Harlow , G.E. ( 1997 ): K in clinopyroxene at high pressure and temperature: An experimental study . Am. Mineral ., 82 , 259 – 269 . Hemley , J. , Mao , H.K. , Chao , E.C.T...

... melt-veins in the Sixiangkou (L-6) chondrite. The measurements were made using electron energy-loss near-edge structure (ELNES) spectroscopy. The results demonstrate that akimotoite in shock-melt veins of this meteorite has high proportions of Fe 3+ , with a Fe 3+ /∑Fe ratio of 0.67(3). In contrast...

... chondrites and some achondrites ( Dowty, 1977 ; Chen et al. , 1995 ). The features of Raman spectra of whitlockite in the Suizhou meteorite are identical to those in the Sixiangkou L6 chondrite ( Chen et al. , 1995 ). Table 1. Electron microprobe analyses of tuite and whitlockite (wt...

... ) Melting experiments on the enstatite-pyrope join at 80–152 kbar. Journal of Geophysical Research , 97 , 15181 –15188. Gillet, P., Chen, M., Dubrovinsky, L., and El Goresy, A. ( 2000 ) Natural NaAlSi 3 O 8 -hollandite in the shocked Sixiangkou meteorite. Science , 287 , 1633 –1636. Irifune, T...

... that the back-transformation depends on the cooling rate. It was found that no back-transformation of ringwoodite to olivine and majorite to pyroxene in the Sixiangkou meteorite occurred at the cooling rate >10 000 °C/s. The partial back-transformation of the same minerals occurred in the Peace River...

... Sixiangkou meteorite . Science , 278 , 1633 – 1636 . Gooding , J.L. & Muenow , D.W. ( 1977 ): Experimental vaporization of the Holbrook chondrite . Meteoritics , 12 , 401 – 408 . Goto , T. & Syono , Y. ( 1984 ): Technical aspect of shock compression experiments...

.... These microstructures compare well with those observed in majorite synthesised from a glass in multi-anvil experiments. These observations suggest that the dislocation microstructures observed in both synthetic and meteoritic majorite result from imperfect growth. majorite garnet meteorite shock veins...

... and the detailed assignments of major Raman bands have been proposed (e.g., Chen et al. 1995 ; Jolliff et al. 1996 , 2006 ; Wang et al. 2004 ). The Raman spectrum of the Suizhou merrillite is displayed in Figure 3 , which resembles that of weakly to moderately shocked merrillite in the Sixiangkou meteorite...

... in the shocked Sixiangkou meteorite ( Chen et al. 1996 ). Spectra e , f, and g are the spectra of majoritic garnets along the Mg-mj:pyrope (Mg 4 Si 4 O 12 :Mg 3 Al 2 Si 3 O 12 ) join. Spectra f and g are from Manghnani et al. (1998) . Spectrum e was obtained from a sample described in Quérel...

... falls . Geochimica et Cosmochimica Acta , 68 , 2889 – 2904 . Gillet , P. , Chen , M. , Dubrovinsky , L. , and El Goresy , A. ( 2000 ) Natural NaAlSi 3 O 8 -hollandite in the shocked Sixiangkou meteorite . Science , 287 , 1633 – 1636 . Gonze , X. , Rignanese...

... NaAlSi 3 O 8- hollandite in the shocked Sixiangkou meteorite . Science , 287 , 1633 – 1636 . Hatert , F. , and Burke , E.A.J. ( 2008 ) The IMA-CNMNC dominant-constituent rule revisited and extended . The Canadian Mineralogist , 46 , 717 – 728 . Huang , S. , Tschauner...

... , P. R ochette . – Miller Butte 03002: a new rare iron meteorite (IID) from Antarctica. R. H einemann , H. K roll , A. K irfel , B. B arbier . – Order and anti-order in olivine. I. Structural response to temperature. H. K roll , A. K rifel , R. H einemann . – Order and anti-order in olivine...

... Letters , 175 , 161 –167. Gillet, Ph., Chen, M., Dubrovinsky, L., and El Goresy, A. ( 2000b ) Natural NaAlSi 3 O 8 –hollandite in the shocked Sixiangkou meteorite. Science , 287 , 1633 –1636. Gooley, R. and Moore, C.B. ( 1976 ) Native metal in diogenite meteorites. American Mineralogist , 61...

.... , Dubrovinsky , L. , and El Goresy , A. ( 2000 ) Natural NaAlSi 3 O 8 -hollandite in the shocked Sixiangkou meteorite. Science , 287 , 1633 – 1636 . Greaux , S. , Nishi , M. , Tateno , S. , Kuwayama , Y. , Hirao , N. , Kawai , K. , Maruyama , S. , and Irifune...

... – 1608 , Gillet , P. , Chen , M. , Dubrovinsky , L. , and El Goresy , A. ( 2000 ) Natural NaAlSi 3 O 8 -hollandite in the shocked Sixiangkou meteorite . Science , 287 , 1633 – 1636 . Hammersley , A.P. , Svensson , S.O. , Hanfland , M. , Fitch , A.N...

... found high-pressure mineral jadeite with a new “spherulite-like” microtexture and analyzed its formation process. The Novosibirsk chondrite, used in this study, was obtained from the meteorite collection of Central Siberian Geological Museum, Novosibirsk. Three chips were embedded into an epoxy...

... in the Shergotty meteorite . Science , 88 , 1632 – 1634 . Gillet , P. , Chen , M. , Dubrovinsky , L. , El Goresy , A. ( 2000 ): Natural NaAlSi 3 O 8 -hollandite in the shocked Sixiangkou meteorite . Science , 287 , 1633 – 1636 . Goltrant , O. , Leroux , H. , Doukhan...