SHI Feng1,2, LI Shi-jie1, LI Xiong-yao1, WANG Shi-jie3, LIU Jian-zhong1, HU Sen4, YANG Ben-yong5, ZENG Xiao-jia1,2
(1. Lunar and Planetary Science Research Center, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 55002, China;
2. University of Chinese Academy of sciences, Beijing 100049, China; 3. State Key Laboratory of Environment Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China; 4. Key Laboratory of the Earth’s Deep Interior, Institute of Geology and Geophysics, Chinese Academy of sciences, Beijing 100029, China; 5. Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanical, Chinese Academy of Sciences, Hefei 230031, China)
Abstract: Physical properties played important roles during evolutionary processes of meteorite parent bodies. Some physical properties of meteorite might be significantly altered due to terrestrial weathering. In order to investigate the influence of weathering on ordinary chondrite physical properties, the physical properties (grain density, bulk density, porosity, magnetic susceptibility, thermal conductivity, and reflectance spectrum) of different depth of a Kumtag meteorite were measured using density analyzer, kappameter, thermal conductivity analyzer and spectral photometer, respectivly. The results show that the grain density, porosity, magnetic susceptibility and reflection spectrum of H ordinary chondrite decrease with increasing weathering degree. While the effect on thermal conductivity and bulk density by weathering is not significant.
Keywords: ordinary chondrite; physical property; weathering
Email: shijie@mails.gyig.ac.cn
ACTA MINERALOGICA SINICA Vol. 36, No. 1, 2016, Page 1-6
