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首页> 外文期刊>Journal of the Geological Society of India >Analysis of mineral compositions and crater morphology on the Moon surface using Moon orbital satellite data
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Analysis of mineral compositions and crater morphology on the Moon surface using Moon orbital satellite data

机译：利用月球轨道卫星数据分析月球表面的矿物成分和陨石坑形态

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摘要

Analysing vertical and lateral distribution of minerals within an impact crater on lunar surface would aid in understanding the crustal compositions to a larger extent and provides clue about geological evolution of the Moon. The Chandrayaan-1 Moon Mineralogy Mapper (M-3) and Lunar Reconnaissance Orbiter Camera (LROC) data have high spectral and spatial resolutions, which help in identifying the mineral compositions and morphological features of impact crater. Here we analyse mineral compositions and their correlations with crater morphology using M3 and LROC satellite data of Eijkman impact cater in SouthPole Atiken (SPA) basin. The result shows that low-Ca pyroxene (LCP) dominant rocks are identified on Central Peak (CP), Crater Floor (CF), Crater Wall (CW) and Crater Rim (CR). An olivine dominant rock is detected on the CW. Fe-Mg-spinel lithological unit is observed on the CF. The results implicate that, (i) Low-Ca pyroxene minerals could be from the lower crust during SPA main event; (ii) Presence of olivine and Fe-Mg-spinel lithology on the surface could be a later stage mafic intrusions or the lower-crustal material exposed on the surface due to major impacts.
机译：分析月球撞击坑内矿物的垂直和横向分布，将有助于在更大程度上了解地壳成分，并提供有关月球地质演化的线索。 Chandrayaan-1号月球矿物制图仪（M-3）和月球侦察轨道相机（LROC）数据具有较高的光谱和空间分辨率，有助于识别撞击坑的矿物成分和形态特征。在这里，我们使用M3和LROC卫星数据对南极阿提肯（SPA）盆地的埃克曼冲击结石分析了矿物成分及其与火山口形态的相关性。结果表明，在中峰（CP），火山口底板（CF），火山口壁（CW）和火山口边缘（CR）上发现了低钙辉石（LCP）优势岩石。在CW上检测到橄榄石优势岩石。在CF上观察到Fe-Mg-尖晶石岩性单元。结果表明：（i）低钙辉石矿物可能来自SPA主事件期间的下地壳; （ii）表面存在橄榄石和铁-镁-尖晶石岩性可能是后期镁铁质侵入或由于重大影响而暴露在表面的下地壳物质。

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