Extended Data Fig. 4: Content ratio HCP/(HCP + LCP) for CE4_0015 and CE4_0016, calculated by MGM deconvolution. | Nature

Extended Data Fig. 4: Content ratio HCP/(HCP + LCP) for CE4_0015 and CE4_0016, calculated by MGM deconvolution.

From: Chang’E-4 initial spectroscopic identification of lunar far-side mantle-derived materials

Extended Data Fig. 4

a, 1-μm result: 19% (CE4_0015) and 16% (CE4_0016). b, 2-μm results: 20% (CE4_0015) and 18% (CE4_0016). Data are from figure 7 of ref. 30, overlain on calibration lines (solid black line). Solid black symbols represent pyroxene samples of different grain size. The calibration line is defined by the relationship between the MGM-derived band-depth ratio of LCP/HCP and the content ratio of HCP/(HCP + LCP) measured in the laboratory for all grain sizes of the pyroxene samples. The MGM-derived band-depth ratios of LCP/HCP for CE4_0015 (red triangle) and CE4_0016 (green triangle) were projected onto the calibration line to estimate their corresponding content ratio of HCP/(HCP + LCP).

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