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Minerals Report - International Seabed Authority

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APPENDICES<br />

B.<br />

Appendix 1.<br />

A. Fe-Mn crust pavement (~3 x 4m) on the upper flank of Horizon Guyot,<br />

Central Pacific; 2000 m water depth. B. Large sample (1.5 x 0.9 x 0.3 m)<br />

of cobalt-rich Fe-Mn crust and substrate rock; typical botryoidal surface.<br />

C. Same sample as in (B) cut through the long axis. The Fe-Mn crust is<br />

about 18 cm thick and shows distinct growth layers. The crust grew on a<br />

volcaniclastic substrate rock and growth started 60 Ma ago. A mudstone<br />

cobble occurs within the crust on the right side.<br />

INTERNATIONAL SEABED AUTHORITY 253

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