月球中铁和钛的丰度：月球勘探者号和克莱门汀号数据的比较。

Lunar Fe and Ti abundances: comparison of lunar prospector and clementine data.

作者信息

Elphic RC, Lawrence DJ, Feldman WC, Barraclough BL, Maurice S, Binder AB, Lucey PG

机构信息

R. C. Elphic, D. J. Lawrence, W. C. Feldman, B. L. Barraclough, Space and Atmospheric Sciences, MS D466, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. S. Maurice, Observatoire Midi-Pyrenees, 31400 Toulouse, France. A. B.

出版信息

Science. 1998 Sep 4;281(5382):1493-6. doi: 10.1126/science.281.5382.1493.

DOI:10.1126/science.281.5382.1493

PMID:9727972

Abstract

The Lunar Prospector neutron spectrometer data correlate well with iron and titanium abundances obtained through analysis of Clementine spectral reflectance data. With the iron and titanium dependence removed, the neutron spectrometer data also reveal regions with enhanced amounts of gadolinium and samarium, incompatible rare earth elements that are enriched in the final phases of magma crystallization. These regions are found mainly around the ramparts of the Imbrium impact basin but not around the other basins, including the much larger and deeper South Pole-Aitken basin. This result confirms the compositional uniqueness of the surface and interior of the Imbrium region.

摘要

月球勘探者号中子光谱仪数据与通过克莱门汀光谱反射率数据分析获得的铁和钛丰度数据高度相关。去除铁和钛的相关性后，中子光谱仪数据还揭示了钆和钐含量增加的区域，钆和钐是不相容的稀土元素，在岩浆结晶的最后阶段富集。这些区域主要发现于雨海撞击盆地的壁垒周围，而在其他盆地周围未发现，包括大得多且深得多的南极-艾特肯盆地。这一结果证实了雨海区域表面和内部成分的独特性。