格罗夫山普通球粒陨石的磁化率和化学分类方法对比分析

发布时间：2019-04-29 16:24

【摘要】：中国经过5次南极格罗夫山科学考察后,从该地区回收到11 452块陨石样品。南极陨石回收后面临着庞大的基础分类工作,需要确定其化学群和岩石类型。由于传统的化学分类方法不仅有损样品,而且样品制备耗时耗力,需要大量的经费和人力支持才能完成陨石的基础分类工作。因而国际上也在探索使用快速、无损的磁化率分类方法来确定陨石的类型。中国陨石基础分类工作得到科技部样品共享平台的资助,在2003年和2006—2008年期间开展了4次陨石分类工作,共确定了2 300多块普通球粒陨石的化学群、岩石类型、冲击强度和风化程度。本文在基础分类工作的基础上,探讨这些样品的磁化率分析结果,并给出磁化率分类的适用范围及应用前景。
[Abstract]:After five scientific expeditions to the Grove Mountains, China recovered 11,452 meteorite samples from this area. Antarctic meteorites are faced with a great deal of basic classification work after recovery and need to determine their chemical groups and rock types. Because the traditional chemical classification method is not only harmful to samples, but also time-consuming and energy-consuming, it needs a lot of financial and manpower support to complete the basic classification of meteorites. Therefore, the use of fast, non-destructive susceptibility classification to determine meteorite types is also being explored internationally. The basic classification of meteorites in China was funded by the sample sharing platform of the Ministry of Science and Technology. During 2003 and 2006-2008, the classification of meteorites was carried out four times, and more than 2,300 chemical groups and rock types of ordinary chondrites were determined. Impact strength and weathering degree. On the basis of basic classification work, this paper discusses the results of magnetic susceptibility analysis of these samples, and gives the applicable scope and application prospect of magnetic susceptibility classification.
【作者单位】：中国科学院地质与地球物理研究所地球深部研究重点实验室;金川集团股份有限公司矿产资源部;有色金属矿产地质调查中心;桂林理工大学地球科学学院;
【基金】：国家自然科学基金青年科学基金项目(41103031)资助
【分类号】：P185.83

【参考文献】