Acfer 094, a uniquely primitive carbonaceous chondrite from the Sahara
Acfer 094, a uniquely primitive carbonaceous chondrite from the Sahara
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Acfer 094，来自撒哈拉沙漠的独特原始碳质球粒陨石
DOI：
10.1111/j.1945-5100.1995.tb01211.x
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
C. Pillinger
中科院分区：
文献类型：
--
作者：
J. Newton;A. Bischoff;J. W. Arden;I. Franchi;T. Geiger;A. Greshake;C. Pillinger
-撒哈拉陨石Acfer094是一种独特的碳质球粒陨石。矿物学和岩石学的考虑因素和氧同位素无法明确区分CO3和CM2分类。其他重要的轻元素C和N的系统学特征与之前发现的任何陨石群都不匹配。在这方面特别重要的是大分子C的C/N比和δ13C非常低。Acfer094比任何其他研究的样品都含有更多的金刚石和碳化硅，特别是X型颗粒，这意味着最小的热或水处理来降低其非常原始的状态。
— The Saharan meteorite Acfer 094 is a unique type of carbonaceous chondrite. Mineralogical and petrological considerations and O isotopes are unable to distinguish unambiguously between a CO3 vs. CM2 classification. The other important light elements, C and N, have systematics that do not match any previously recognised meteorite group. Particularly important in this respect is the very low C/N ratio and δ13C of the macromolecular C. Acfer 094 has more diamond and SiC, especially X type grains, than any other specimen studied, suggesting minimal thermal or aqueous processing to decrease its very primitive status.