Larger View

Nautical Charts

The bathymetry of the North Pacific Ocean as shown on some very interesting nautical charts, features deep sea basins and trenches such as the Northwest Pacific Basin (with depths over -10,500 m) to the south of the Kamchatka Peninsula, and the Aleutian Trench (with depths over -8,000 m) just south of the Aleutian Islands. Shallower regions are found along the continental shelves and the marginal seas. Nautical charts are produced for marine navigation. They contain information on all navigational aids, such as buoys and beacons, lighthouses, radio and radar stations, shipping channels, restricted areas. Some charts are issued with Loran-C plotting grid s or great circle sailing tracks. Water depths are recorded as soundings, in meters, feet or fathoms.

OCEANOGRAPHY

United Nations

Distr. GENERAL
Second session
22 February-4 March 1994

E/C.7/1994/8

COMMITTEE ON NATURAL RESOURCES

ECONOMIC AND SOCIAL DEVELOPMENT NEEDS IN THE MINERAL SECTOR:
REGIONAL MINERAL RESOURCE ASSESSMENT PROGRAMMES
Review of regional mineral resource assessment programmes and resource needs
Report of the Secretary-General.

SUMMARY: Information about a nation's mineral resource potential is crucial innational and regional development planning. Many developing countries lacksufficient resource data despite the availability of a wide range ofassessment techniques.