Abundance and distribution of radioelements in lunar terranes: Results of Chang’E-1 gamma ray spectrometer data | |
Jian Chen; Zongcheng Ling; Bo Li; Jiang Zhang; Lingzhi Sun; Jianzhong Liu | |
刊名 | Advances in Space Research
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2016 | |
卷号 | 57期号:3页码:919-927 |
关键词 | Chang’e-1 Grs radioelements spectral Fitting lunar Terranes magmatic Processes |
英文摘要 | The gamma ray spectrometer (GRS) onboard Chang’E-1 has acquired valuable datasets recording the gamma ray intensities from radioelements (Potassium (K), Thorium (Th) and Uranium (U), etc.) on lunar surface. We extracted the elemental concentrations from the GRS data with spectral fitting techniques and mapped the global absolute abundance of radioelements in terms of the ground truths from lunar samples and meteorites. The obtained global concentration maps of these radioelements indicate heterogeneous distribution among three major lunar crustal terranes (i.e., Procellarum KREEP Terrane (PKT), Feldspathic Highlands Terrane (FHT), and South Pole Aitken Terrane (SPAT)) in relation with their origin and distinct geologic history. The majority of radioelements are restricted in PKT, approving the scenario of KREEP (Potassium (K), rare earth elements (REE), Phosphorus (P)) residua concentrating under the Procellarum region. Moreover, we found the consistency of distribution for radioelements and basalts, concluding that the subsequent volcanism might be associated with local concentrations of radioelements in western Oceanus Procellarum and northwestern South Pole Aitken Basin. The prominent and asymmetric radioactive signatures were confirmed in SPAT comparing to FHT dominated by low level radioactivity, while the magnitudes are much lower than that of PKT, indicating a primary geochemical heterogeneity for the Moon. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.gyig.ac.cn/handle/42920512-1/9641] ![]() |
专题 | 地球化学研究所_月球与行星科学研究中心 |
作者单位 | 1.Institute of Geochemistry, Chinese Academy of Sciences, 46 Guanshui Road, Guiyang, Guizhou 550002, China 2.Key Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, 20 Datunlujia, Beijing 100012, China 3.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, 180 Wenhua Xilu, Weihai 264209, China |
推荐引用方式 GB/T 7714 | Jian Chen;Zongcheng Ling;Bo Li;Jiang Zhang;Lingzhi Sun;Jianzhong Liu. Abundance and distribution of radioelements in lunar terranes: Results of Chang’E-1 gamma ray spectrometer data[J]. Advances in Space Research,2016,57(3):919-927. |
APA | Jian Chen;Zongcheng Ling;Bo Li;Jiang Zhang;Lingzhi Sun;Jianzhong Liu.(2016).Abundance and distribution of radioelements in lunar terranes: Results of Chang’E-1 gamma ray spectrometer data.Advances in Space Research,57(3),919-927. |
MLA | Jian Chen;Zongcheng Ling;Bo Li;Jiang Zhang;Lingzhi Sun;Jianzhong Liu."Abundance and distribution of radioelements in lunar terranes: Results of Chang’E-1 gamma ray spectrometer data".Advances in Space Research 57.3(2016):919-927. |
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