Fig. 2: TEM analysis of the Ca/Mn-rich core region of the carbonate nodule. | Communications Earth & Environment

Fig. 2: TEM analysis of the Ca/Mn-rich core region of the carbonate nodule.

From: Complex carbonate phases drive geologic CO2 mineralization

Fig. 2

A HAADF-STEM image showing microstructure of the core region. B Higher-resolution HAADF-STEM image of the region highlighted in (A). C EDS elemental map highlighting compositional variations in (A). Compositions corresponding to the highlighted boxes are in Table 1. D Atomic-resolution HAADF-STEM image of the major phase. (inset) digitally magnified HAADF image showing lattice spacings. E FFT of the HAADF-STEM image showing ordering reflections.

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