Solar System Abundances of the Elements
Solar System Abundances of the Elements
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DOI：
10.1016/b978-0-08-095975-7.00118-2
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发表时间：
2003-12
影响因子：
10.6
通讯作者：
H. Palme;A. Jones
中科院分区：
文献类型：
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作者：
H. Palme;A. Jones
更新的太阳光球丰度与陨石丰度进行了比较。与2003年的汇编相比，许多微量元素的太阳丰度的不确定性大大降低。一些太阳能稀土元素的误差现在已经达到± 5%，接近陨石分析的精度。太阳丰度和CI丰度之间的一致性进一步提高。太阳能和陨石丰度差异较大的问题元素有锰、铪、铷、镓和钨。CI钙钛矿在耐火亲石、亲铁和挥发性元素方面与太阳丰度相匹配。所有其他球粒陨石群都不同于CI球粒陨石。由于分析的不确定性，CI陨石和太阳丰度之间没有明显的分馏。进一步的进展将主要来自改进的太阳丰度测定。陨石丰度准确性的限制因素是CI陨石的固有异质性，主要是Orgueil陨石。形成太阳系的星际介质（ISM）与太阳的成分相同，挥发性和中等挥发性元素的系数为2。ISM中更难熔的元素从气体中耗尽并集中在晶粒中。
Updated solar photospheric abundances are compared with meteoritic abundances. The uncertainties of solar abundances of many trace elements are considerably reduced compared to the 2003 compilation. Some of the solar rare earth elements have now assigned errors of ± 5%, approaching the accuracy of meteorite analyses. The agreement between solar abundances and CI chondrites is further improved. Problematic elements with comparatively large differences between solar and meteoritic abundances are manganese, hafnium, rubidium, gallium, and tungsten. The CI chondrites match solar abundances in refractory lithophile, siderophile, and volatile elements. All other chondrite groups differ from CI chondrites. With analytical uncertainties, there are no obvious fractionations between CI meteorites and solar abundances. Further progress will primarily come from improved solar abundance determinations. The limiting factor in the accuracy of meteorite abundances is the inherent heterogeneity of CI chondrites, primarily the Orgueil meteorite. The interstellar medium (ISM) from which the solar system formed has the same composition as the Sun for volatile and moderately volatile elements within a factor of 2. The more refractory elements of the ISM are depleted from the gas and are concentrated in grains.