本文選題：嫦娥二號(hào)　切入點(diǎn)：γ射線　出處：《中國(guó)科學(xué):物理學(xué) 力學(xué) 天文學(xué)》2016年02期 　論文類型：期刊論文

【摘要】：Fe作為重要的成巖元素之一,其月表含量和分布特征對(duì)于認(rèn)識(shí)月球巖石成因和巖漿演化具有重要指示意義.本文由嫦娥二號(hào)γ譜儀2C級(jí)數(shù)據(jù)出發(fā),經(jīng)過(guò)譜線篩選、宇宙線校正、能譜累積與本底處理后提取Fe峰計(jì)數(shù)率.我們借助月球勘探者號(hào)的熱中子數(shù)據(jù)進(jìn)行中子校正,之后結(jié)合月球樣品、隕石與嫦娥三號(hào)的就位探測(cè)數(shù)據(jù)標(biāo)定Fe元素豐度.嫦娥二號(hào)γ譜儀全月Fe分布圖中月海玄武巖區(qū)域與Fe元素富集區(qū)域吻合,其中風(fēng)暴洋和雨海中部為Fe含量高值區(qū)域(Fe O23 wt.%),南極艾肯盆地內(nèi)也出現(xiàn)Fe的相對(duì)富集,而月陸區(qū)域Fe含量較低(Fe O8 wt.%).與月球勘探者號(hào)g譜儀的探測(cè)結(jié)果相比,嫦娥二號(hào)γ譜儀解算的Fe元素豐度(Fe O)平均偏低0.7 wt.%.
[Abstract]:As one of the important diagenetic elements, the monthly surface contents and distribution characteristics of Fe play an important role in understanding the genesis of lunar rocks and magma evolution. Based on the 2C data of Chang'e 2 緯 spectrometer, the cosmic ray is corrected by screening the spectrum lines. Energy spectrum accumulation and background processing are used to extract the Fe peak counting rate. We use the thermal neutron data from the lunar prospector to correct the neutron, and then combine the lunar sample. The isotopic data of meteorite and Chang 'e-3 were used to calibrate the abundance of Fe elements. The distribution of Fe in the whole moon Fe distribution map of Chang 'e-2 gamma-ray spectrometer coincided with the enrichment area of Fe element in the Yuehai basalt area. In the middle of Storm Ocean and Rain Sea, the high value area of Fe content is Fe O 23 wt. and the relative enrichment of Fe is also observed in the Aiken basin, Antarctica, while the content of Fe in the continental area is lower than that in the lunar land area, which is compared with the results of the Lunar Prospector g spectrometer. The average Fe abundance calculated by Chang 'e-2 緯 spectrometer is lower than 0.7 wt.
【作者單位】： 山東大學(xué)空間科學(xué)研究院山東省光學(xué)天文與日地空間環(huán)境重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院月球與深空探測(cè)重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院地球化學(xué)研究所;
【基金】：國(guó)家自然科學(xué)基金(批準(zhǔn)號(hào):U1231103,41473065,41373068,41490634) 山東省自然科學(xué)基金(編號(hào):JQ201511,ZR2015DQ001) 中國(guó)科學(xué)院重點(diǎn)部署項(xiàng)目(編號(hào):KGZD-EW-603) 中國(guó)科學(xué)院月球與深空探測(cè)重點(diǎn)實(shí)驗(yàn)室開放基金 山東大學(xué)(威海)青年學(xué)者未來(lái)計(jì)劃資助
【分類號(hào)】：P184.5

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