Cobalt-rich ferromanganese crusts from the Central Pacific
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Abstract
Ferromanganese crusts coat most hard substrates on seamounts, ridges, and plateaus in the centralPacific basin. Crusts from less than 2500 m water depth are rich in Mn, Co, Ni, Pb, and Pt. Samples we collected from the EEl of the Hawaiian, Johnston, Palmyra, and Marshall Islands are discussed. Necker Ridge in the Hawaiian EEl has the greatest average crust thickness of 4 em. The dominant mineral in all crusts is o-Mn02' Substrate rocks are dominantly volcanic breccia. Slumping and turbidity currents on the flanks of the submarine edifices partly control crust thicknesses by burial and dissolution or erosion. Regional variations in crust chemistry and mineralogy can be related to various oceanographic and geologic conditions. Of the areas examined in Some detail, the EEl of Johnston, Palmyra, and the Marshall Islands hold the greatest economic potential.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Cobalt-rich ferromanganese crusts from the Central Pacific |
| DOI | 10.4043/5234-MS |
| Year Published | 1986 |
| Language | English |
| Publisher | Offshore Technology Conference |
| Contributing office(s) | Woods Hole Coastal and Marine Science Center |
| Description | 8 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Proceedings of the Offshore Technology Conference |
| First page | 119 |
| Last page | 126 |
| Conference Title | Offshore Technology Conference |
| Conference Location | Houston, TX |
| Conference Date | May 5-8, 1986 |
| Other Geospatial | Pacific Ocean |
| Google Analytic Metrics | Metrics page |