Manganese Nodules: Dimensions and Perspectives
The United Nations Ocean Economics and Technology Office
I: Introduction.- II: The Basic Data.- I Problem Addressed and a Summary of the Discussion.- II Sampling and Surveying Techniques.- III: The Reliability of Available Data on Element Concentrations in Sea-Floor Manganese Nodules.- IV: The Frequency Distribution of Nickel, Copper and Cobalt Grades in Manganese Nodule Deposits.- V: Status of the Marine Geological Activities of the Geological Survey of Japan.- III: The Mine Site.- VI: Problem Addr...
