Figure 4 | Scientific Reports

Figure 4

From: Iron (hydr)oxide formation in Andosols under extreme climate conditions

Figure 4The alt text for this image may have been generated using AI.

Raman spectra of hematite deduced from micrometer-scale crystals embedded in soil aggregates. (a–d) Reflected light microphotographs in combination with Raman spectra of hematite. Bold numbers represent the wavenumbers of diagnostic Raman bands. Yellow markings indicate the localizations of the respective measurements. Hematite precipitates have been either observed in small voids of silicate components (MB2 glass, (a) or form more extended Fe-(hydr)oxide crusts within the aggregates (b–d).

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