| 摘要: |
| 于1983年5－7月，利用向阳红16号考察船在太平洋7—11°N，167－178°W海域进行锰结核调查，从深海沉积物中分离出大量字苗尘（或称宇宙球粒）。此后对宇宙尘进行了全面研究，取得一定进展。最近，又利用激光拉曼分子探针测定了铁质宇宙尘中的分子组成。结果表明，铁质字宙尘中除了含有Fe－Fe，Fe3+–O，Fe－Ni，Al－O，Fe－Obr－Si和Si-Onb分子外，还含有较丰富的C－H－O和C－H－S－O有机分子，无定形碳C=C和C=C，CH2，CH3和挥发分子CO2，H2O，OH-，H2S，SO2等。这些成份与刍星尘埃的分子成分相一致。这一结果对于深入研究行星际尘埃微粒的起源以及探索生命物质的起源都具有重要意义。 |
| 关键词: 铁质宇宙尘 有机分子 激光拉曼分子探针 生命物质 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目，49176263号 |
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| DISCOVERY OF ORGANIC MOLECULE IN IRON COSMIC DUST |
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Peng Hanchang1, Xu Peicang2
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1.First Institutc of Oceanography, SOA, Qingdao 266003;2.Xian Institute of Ceology andMineral Resources,CAGS, Xian 710054
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| Abstract: |
| In May to July, 1983, a great quantity of cosmic dusts (spherules) were obtained from the deep-sea sediments during manganese nodule invesigation by R/V “Xiangyanghong No. 16” in the area 7° - 11° N, 167° - 178° W in the Pacific. Later, comprehensive studies of the cosmic dusts and use of Laser Raman Molecular Microprobe (LRMM) to determined composition of the molecules in the iron cosmic dusts showed that besides molecules of Fe-Fe, Fe3+-O, Fe-Ni, Al-O, Fe-Obr-Si and Si-Onb, the iron cosmic dusts also contained ntained the organic molecule of C-H-O and C-H-S-O, various nonfixiform molecules of C, CH2, CH3 and volatile molecules CO2, H2O, OH- and H2S etc. These molecular compositions are similar to that for cometary dust.
This result is very important for exploring the origin of interplanetary dust particles and life material. |
| Key words: Iron cosmic dust, Organic molecule, Laser raman molecular microprobe, Life material |
