fig3
![Deep-sea mineral deposits as a future source of critical metals, and environmental issues - a brief review](https://image.oaes.cc/0c2e2f0b-ca44-4606-b40d-143a43541854/5691.fig.3.jpg)
Figure 3. Global distribution of the four primary classes of metal-rich deep-ocean mineral deposits: polymetallic nodules (blue); polymetallic or seafloor massive sulfides (orange); cobalt-rich ferromanganese crusts (yellow); and REE-rich muds (dark blue). The EEZ, identified potential zones such as CCZ, Central Indian Ocean Basin (CIB), Afanasy Niktin Seamount (ANS), Papua New Guinea's first offshore mining project-Solwara 1, and the site of Seabed Disturbance and Recolonization Experiment (DISCOL) by a German project are also shown. Modified after Miller et al.[90].