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题名: The uniform K distribution of the mare deposits in the Orientale Basin: Insights from Chang'E-2 gamma-ray spectrometer
作者: Zhu, Meng-Hua1; Chang Jin(常进)2; Xie, Minggang1; Fritz, Joerg3; Fernandes, Vera A.3, 6; Ip, Wing-Huen1, 4, 5; Ma Tao(马涛)2; Xu, Aoao1
刊名: EARTH AND PLANETARY SCIENCE LETTERS
出版日期: 2015-05-15
卷号: 418, 页码:172-180
关键词: Moon ; Mare Orientale ; radioactive elements ; gamma-ray spectrometer ; homogeneous melt source
学科分类: 天文和天体物理
DOI: 10.1016/j.epsl.2014.11.009
文章类型: Article
英文摘要: The composition of mare basalt units in the Orientale Basin are investigated by using the potassium (K) map derived from Chang'E-2 gamma-ray spectrometer (CE-2 GRS) and FeO map derived from Clementine UV-Vis data set. Together with crater retention ages of the mare basalts from literature data, we aim to investigate possible magma sources underneath the Orientale Basin and their chemical evolution over time. Analyses of the chemical composition of the resurfaced mare basalts together with the reported eruption ages suggest a unique magma generating process for the resurfaced mare deposits. The early mare basalts in the central Mare Orientale and the later resurfaced mare deposits probably derived from magma generated by heat release due to high radioactive element concentrations. Based on forward modeling, the similar K abundances observed in the small mare deposits of the SW polygon area, Lacus Veris, and Lacus Autumni and those in the central Mare Orientale imply the same heat source for these lava eruptions. The chemical similarities (e.g., K, FeO, and TiO2) of these regions suggest that mare basalts within the Orientate Basin are a result of multiple eruptions from a relatively homogeneous source underneath the Basin. (C) 2014 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Geochemistry & Geophysics
研究领域[WOS]: Geochemistry & Geophysics
关键词[WOS]: LUNAR-SURFACE ; RADIOACTIVE ELEMENTS ; ERUPTION CONDITIONS ; THORIUM ABUNDANCES ; SOURCE REGIONS ; VOLCANISM ; MOON ; PROSPECTOR ; BASALTS ; TH
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000352665200015
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14799
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macau, Peoples R China
2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
3.Leibniz Inst Res Evolut & Biodivers, Museum Nat Kunde, Berlin, Germany
4.Natl Cent Univ, Inst Astron, Taoyuan, Taiwan
5.Natl Cent Univ, Inst Space Sci, Taoyuan, Taiwan
6.Univ Oslo, Ctr Earth Evolut & Dynam, Oslo, Norway
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