Application of FIB-SEM Techniques for the Advanced Characterization of Earth and Planetary Materials

Figure 3

Microstructure and elemental mapping of a lunar pyroxene grain (Px) and adhering particles. (a) HAADF-STEM image of the sample. Platinum has filled between fragments and the pyroxene grain. Feldspathic fragment (Fel) and a small ilmenite (Ilm) grain were also found on the surface of pyroxene. (b) High magnification HAADF image of the Mg-Fe silicate fragment, showing the space weathered features. Dark and light particles are observed. (c–i) EDS element mapping of Si, Fe, Al, Ca, Mg, and O, suggesting that the dark particles in (b) are silicon oxide and the light particles are nanophase Fe. Reprinted with permission from Wiley and modified from [49].

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