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Earth, Planets and Space
Fig. 12 | Earth, Planets and Space

Fig. 12

From: The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) Ryugu

Fig. 12

a Back-scattered image of Murchison fragments. White arrows show chondrules or their fragments. Black veins correspond to cracks. b Combined RGB map corresponding to Fe-Kα (red), Mg-Kα (green), and Si–Kα (blue). Red grains are Fe–sulfide or magnetite. c Combined RGB map of Ca–Kα (red), Fe-Kα (green), and S–Kα (blue). Pink grains and bright green grains correspond to Ca–sulfate, and Fe–sulfide, respectively. d A combined image of the BSE image with overlayed RGB images of total CHO (red), CHN (green), and CHNO (blue). e BSE image (left) and EDS spectra (right) obtained from area1 and 2 shown in the BSE image. The EDS spectra consist of Ca, Na, C, and O. f BSE image of carbonate grain and RGB map of Ca–Kα (red), C–Kα (green), and S–Kα (blue). The grain is mainly Ca–carbonate and partially contains sulfate. g BSE image of a Ca-Na carbonate grain and RGB map of Ca-Kα (red), C-Kα (green), and Na-Kα (blue). (e)-(g) correspond to the same area shown by squares in (a)-(c)

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