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您的检索式：作者名="DELOULEEtienne"
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| 1 | Preliminary study of micro-scale zircon oxygen isotopes for Dabie-Sulu metamorphic rocks:Ion probe in situ analyses显示文摘in situ analyses of oxygen isotopes were carried out by ion micro-probe for zircons from 8 localities of HP-UHP metamorphic rocks including eclogites in the Dabie-Sulu terrane. The results show significant heterogene-ity in d 18O values, with variation in different rocks from 8.5 to +9.7 and within one sample from 2 to 12. No measurable difference in d 18O was observed between proto-lith magmatic (detrital) zircons and metamorphic recrystal-lized zircons within analytical uncertainties from the ion micro-probe measurements. This indicates that the meta-morphic zircons have inherited the oxygen isotopic composi-tions of protolith zircons despite the HP to UHP metamor-phism. According to their protolith ages from zircon U-Pb in situ dating by the same ion micro-probe, two groups of oxy-gen isotope composition are recognized, with one having d 18O values of 6—7 for old protolith of 1.9—2.5 Ga ages and the other 0—2 for young protolith of 0.7—0.8 Ga ages. The latter anomalously low d 18O values of zircons in-dicate that the magma has had the obvious involvement of meteoric water when forming the young protolith of high-grade metamorphic rocks. This may be correlated with the snowball Earth event occurring in South China and the world elsewhere during the Neoproterozoic. | CHENDaogong DelouleEtienne CHENGHao XIAQunke WUYuanbao | 2003 | Chinese Science Bulletin2003，48，16： | 12 |
| 2 | 汉诺坝幔源单斜辉石巨晶氢同位素组成的离子探针分析:微尺度不均一性显示文摘运用离子探针技术测定了河北汉诺坝新生代玄武岩中 3个单斜辉石巨晶的氢同位素组成 ,结果显示同一颗粒内部表现出微尺度的不均一性 ,2 mm范围内 δD的变化达到 6 0‰。δD和氢含量之间不存在同步的变化 ,巨晶内部的化学成分均一 ,因此我们认为巨晶的氢同位素不均一性继承自母岩浆。母岩浆的氢同位素变化可能是去气过程中气相与熔体之间的分馏引起的。单斜辉石巨晶形成后很短的时间内即被寄主岩浆带至地表并经历了快速淬火。 | 夏群科 潘尤杰 陈道公 DELOULEEtienne 支霞臣 程昊 吴元保 | 2001 | 岩石学报2001，17，1： | 9 |
| 3 | Anomalously high δD and micro-scale hydrogen isotope heterogeneities in the mantle: Ion microprobe analysis of am-iboles from peridotite xeno-liths at Nushan,eastern China显示文摘Hydrogen isotopic compositions of four am-phibole grains from three pieces of Iherzolite xenoliths in Cenozoic basanites of Nushan, eastern China have been analyzed by ion microprobe. σD values of all analyzed points range from -94‰ to +46‰, some of which are much higher than the highest σD (+8‰) reported previously for mantle materials. The heterogeneities of D/H ratios within single grains have been observed, the variation of σD is up to 80‰ on the scale of less than 400 μm. No correlation between hydrogen isotopic ratios and hydrogen contents can be found, implying that the scatter of σD values could not result from a late shallow process such as hydrogen loss or hydrothermal alterations and should be considered as inherited from the source at depth. Chemical compositions of Nushan amphi-boles are very homogeneous, excluding the fact that the scatter of σD values could arise from variable fractionation factors between a single fluid source and minerals. Therefore, metasomatic fluids | DelouleEtienne | 2001 | Chinese Science Bulletin2001，46，6： | 0 |
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