Thorium distribution on the Moon: new insights from Chang'E-2 gamma-ray spectrometer
文献类型：期刊论文
| 作者 | Zhu, Meng-Hua1,2,3; Chang, Jin2 ; Ma, Tao2
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 19期号:6页码:14 |
| 关键词 | Moon Chang'E-2 Gamma-ray Spectrometer Thorium distribution |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/19/6/76 |
| 通讯作者 | Zhu, Meng-Hua(mhzhu@must.edu.mo) |
| 英文摘要 | We present the thorium distribution on the lunar surface derived from observations by the Chang'E-2 gamma-ray spectrometer (CE-2 GRS). This new map shows a similar thorium distribution to previous observations. In combination with this new thorium map and impact cratering model, we investigate the origination of thorium on the Moon's highlands, which was previously thought to be contributed from Imbrium ejecta. We found that the Imbrium ejecta has a small contribution (similar to 20%-30%) to the thorium on the lunar highlands but most thorium is likely to be indigenous before the deposition of the Imbrium ejecta. This new thorium map also confirms that the eastern highlands have a relatively higher thorium concentration than the western highlands. We propose that the thin crust and large basins on the eastern highlands are responsible for this difference in thorium. |
| WOS关键词 | PROCELLARUM KREEP TERRANE ; LUNAR FARSIDE ; RADIOACTIVE ELEMENTS ; EJECTA DISTRIBUTION ; BASIN EJECTA ; SURFACE ; ORIGIN ; IMPACT ; MANTLE ; ABUNDANCES |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000470875400001 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/27511]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Zhu, Meng-Hua |
| 作者单位 | 1.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Taipa, Macao, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China 3.CAS Ctr Excellence Comparat Planetol, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Meng-Hua,Chang, Jin,Ma, Tao. Thorium distribution on the Moon: new insights from Chang'E-2 gamma-ray spectrometer[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(6):14. |
| APA | Zhu, Meng-Hua,Chang, Jin,&Ma, Tao.(2019).Thorium distribution on the Moon: new insights from Chang'E-2 gamma-ray spectrometer.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(6),14. |
| MLA | Zhu, Meng-Hua,et al."Thorium distribution on the Moon: new insights from Chang'E-2 gamma-ray spectrometer".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.6(2019):14. |
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来源：紫金山天文台
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