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| 1 | Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica显示文摘Petrography and mineral chemistry of 24 ordinary chondrites from the Grove Mountains, Antarctica, have been studied in order to identify their chemical-petrographic types. These samples were selected from a total of 4448 Grove Mountains (GRV) meteorites collected during the 19th Chinese Antarctic Research Expedition so as to make an estimation of the large GRV meteorite collection. The chemical-petrographic types of these meteorites are presented below: 1 H3, 2 H4,4 H5, 2 H6, 1 L4, 7 L5, 5 L6, 1 LL4 and 1 LL6. The new data weaken the previous report that unequilibrated ordinary chondrites are unusually abundant in the Grove Mountains region. However, this work confirms significant differences in distribution patterns of chemical-petrographic types between the Grove Mountains and other regions in Antarctica. Many of these meteorites show significant terrestrial weathering, probably due to a high abundance ratio of meteorites found in moraines to those on blue ice. Nine meteorites experienced severe shock metamorphism, as evidenced by undulose extinction and intense fracturing of silicates and presence of shock-induced melt veins and pockets. These heavily shocked meteorites provided us with natural samples for the study of high-pressure polymorphs of minerals. | LURen MIAOBingkui WANGGuiqing DAIDeqiu LINYangting OUYANGZiyuan LIChunlai | 2004 | Acta Geologica Sinica(English Edition)2004，78，5： | 12 |
| 2 | Fast computation of Cartesian geometric moments using discrete Green's the orem显示文摘 | LUREN Y FRITZ A | 1996 | Pattern Recognition1996，29，10： | 1 |
| 3 | Growth and Survival of Probiotic Yeast in Dairy Products显示文摘 | LUREN A VILJOEN B C | 2001 | Food Research Interna Tiona2001，34，6： | 1 |
| 4 | Fast and exact computation of Cartesian geometric moments using discrete green's theorem显示文摘 | LUREN Y ALBEGTSEN F | 1996 | Pattern Recognition1996，28，7： | 1 |
| 5 | Fast and exact computation of Cartesian geometric moments using discrete Green's theorem显示文摘 | Yang Luren Albregtsen Fritz | 1996 | Pattern Recognition1996，29，7： | 1 |
| 6 | Fast and exact computation of cartesian geometric moments using discrete green' s theorem显示文摘 | Luren Yan Fritz Albegtsen | 1996 | Pattern Recognition1996，29，7： | 1 |
| 7 | Thermodynamic Assessment of Reactions between Yttrium and Tramp Elements in Petroleum Pipe Steel显示文摘In the thermodynamic evaluation Y was selected as a typical heavy rare earth metal for reducing the detrmental effects of tramp elements in the petroleum pipe steel. The possibilities of reactions between Y and trampelements such as Sn, Sb, As, etc. after deoxidation and desulphurization were estimated by calculating the Gibbsfree energies of formation. The equilibrium content of Y for eliminating the detrimental effects of tramp elements inthe steel was recommended from the results of thermodynamic calculation. | Aixue Sha Luren Dong Shangyi Li( Metallurgy School, University of Science and Technology Beijing, Beijing 1 00083, China)(Science and Technology Department, Metallurgical Industry Bureau of China, Beijing 100711, China) | 1998 | International Journal of Minerals,Metallurgy and Materials1998，12，4： | 0 |
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