Supporting Data for “Near-atomic-scale analysis reveals an unexpected dual role for manganese minerals in biosignature preservation”
Description
This dataset contains the raw X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and atom probe tomography (APT) data supporting the study entitled “Near-atomic-scale analysis reveals an unexpected dual role for manganese minerals in biosignature preservation.” The XRD data provide information on the mineral composition of natural Fe–Mn nodules from strongly weathered soils. The XPS data support the characterization of Mn oxidation states and carbon chemical states in different regions of the nodules. The APT data enable near-atomic-scale investigation of the three-dimensional spatial distributions of Mn, Al, and carbon-bearing species, including their relationships within Mn-rich microdomains and mineral compositional transition zones.