High resolution measurements of absolute thorium abundances on the lunar surface

被引：82

作者：

Lawrence, DJ

Feldman, WC

Barraclough, BL

Binder, AB

Elphic, RC

Maurice, S

Miller, MC

Prettyman, TH

机构：

[1] Univ Calif Los Alamos Natl Lab, Grp NIS1, Los Alamos, NM 87545 USA

[2] Observ Midi Pyrenees, F-31400 Toulouse, France

[3] Lunar Res Inst, Tucson, AZ USA

[4] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[5] Univ Calif Los Alamos Natl Lab, Grp NIS5, Los Alamos, NM 87545 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 1999年 / 26卷 / 17期

关键词：

D O I：

10.1029/1999GL008361

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Lunar Prospector (LP) Gamma-Ray Spectrometer (GRS) has been used to map the global abundance of thorium on the lunar surface. A global map of absolute thorium abundances on a 2 degrees by 2 degrees equal-area pixel scale is presented using new detector modeling results and low altitude LP data. Because thorium is relatively abundant in KREEP-rich material, these data provide fundamental information regarding the locations and importance of terranes that are rich in KREEP bearing materials.

引用

页码：2681 / 2684

页数：4

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