Fig. 2 Photographs of ferromanganese crust(OSM-XX_EBS04_20). Orange dotted square is μ-XRF element mapping analysis area and red box area indicates μ-XRF quantitative analysis area. White dotted layer is XRD analysis area.

Econ. Environ. Geol. 2023;56:55~63 https://doi.org/10.9719/EEG.2023.56.1.55