Figure 5: TEM analyses of Discovery Point organic microfossils. | Nature Communications

Figure 5: TEM analyses of Discovery Point organic microfossils.

From: Molecular preservation of 1.88 Ga Gunflint organic microfossils as a function of temperature and mineralogy

Figure 5

(a) Scanning TEM (STEM) image showing the nanoscale mixing of organic carbon and carbonates. Organic carbon appears dark. Scale bar, 250 nm. (b–d) High-resolution TEM images showing details of this nanoscale association. Spots indicate where the EDXS data were collected. Scale bars, 200 nm (b), 100 nm (c) and 20 nm (d). (e,f) TEM–EDX spectra acquired on the organic matter constituting the microfossils and on the associated calcium carbonates.

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