File:Lunar Thorium concentrations.jpg

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描述

Map of the Moon (left: nearside; right: farside), generated from gamma-spectrometric data collected by the Lunar Prospector vessel. The map shows the global distribution of the element Thorium in surface rocks, with high Thorium concentrations indicating the occurence of the so-called KREEP rocks, which have high contents in Potassium, Rare Earth Elements and Phosphorus. The heterogeneous distribution of KREEP rocks at the moon’s surface implies fundamentally different geological histories of the individual lunar regions (terranes). For further information see Jolliff et al. (2000).[1]

  1. Bradley Jolliff, Jeffrey Gillis, Larry Haskin, Randy Korotev, and Mark Wieczorek (2000): Major lunar crustal terranes: Surface expressions and crust-mantle origins. Journal of Geophysical Research. 105(E2): 4197–4216, doi:10.1029/1999JE001103.
日期 2012-05-22, original upload date on en.wikipedia.org was 2012-08-28. Uploaded version is identical to the version transferred to commons.
来源 http://solarsystem.nasa.gov/multimedia/display.cfm?Category=Planets&IM_ID=13643
作者 NASA
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(二次使用本文件)
Public domain 本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zhNASA版权方针页面JPL图片使用方针。)
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