Major and trace element abundances in samples from the lunar highlands
Major and trace element abundances in samples from the lunar highlands
复制标题
月球高地样品中的主量元素和微量元素丰度
DOI：
--
复制
发表时间：
1973
期刊：
影响因子：
--
通讯作者：
K. Telander
中科院分区：
文献类型：
--
作者：
L. Haskin;P. A. Helmke;D. Blanchard;J. Jacobs;K. Telander
对阿波罗 16 号岩石样品 60025、60335、64455、65015、67075 和 67629 以及细粉 60601、61221、61241、64501、 65701、67601 和 69941。已在 65015 的 4 个 4-5 mg 碎片和 65702 的 20 个 2.5-9.5 mg 碎片中测定了 FeO、Na2O、REE、Co、Cr、Hf 和 Sc。小碎片的痕量元素特征与较大岩石的痕量元素特征相似。在克里普玄武岩、VHA 玄武岩、斜长岩、细粉和陨石之间没有发现简单的混合关系。使用分析样品作为混合模型的端元，无法同时实现 Al2O3 和 LIL 元素的平衡。大多数分析样品都具有负 Eu 异常，与斜长石累积物预期的正异常相反。大多数样品可能来自流入高地山谷的富含 LIL 的液体。
Analyses for major elements, REE, Co, Cr, Cs, Ga, Hf, Ni, Rb, Sc, and Zn have been done on samples of Apollo 16 rocks 60025, 60335, 64455, 65015, 67075, and 67629 and on fines 60601, 61221, 61241, 64501, 65701, 67601, and 69941. FeO, Na2O, REE, Co, Cr, Hf, and Sc have been determined in four 4-5 mg chips from 65015 and 20 individual, 2.5-9.5 mg fragments from 65702. It appears that trace element characteristics of small fragments are similar to those of larger rocks. No simple mixing relationship was found among KREEP basalts, VHA basalts, anorthosites, fines, and meteorites. Balances could not be simultaneously achieved for Al2O3 and LIL elements, using analyzed samples as end members for mixing models. Most samples analyzed have negative Eu anomalies, in contrast to the positive anomalies expected for plagioclase cumulates. Most samples may be derived from LIL-rich liquids that flowed into highland valleys.