Details

Autor(en) / Beteiligte

• Andrews, J.
• Friedrich, G.
• Pautot, G.
• Pluger, W.
• Renard, V.
• Melguen, M.
• Cronan, D.
• Craig, J.
• Hoffert, M.
• Stoffers, P.
• Shearme, S.
• Thijssen, T.
• Glasby, G.
• LeNotre, N.
• Saget, P.

Titel

The Hawaii-Tahiti Transect: The oceanographic environment of manganese nodule deposits in the Central Pacific

Ist Teil von

• Marine geology, 1983-01, Vol.54 (1), p.109-130

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

1983

Link zum Volltext

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• The International Cooperative Investigation of Manganese Nodule Environments initiated the Hawaii-Tahiti transect to test a variety of hypotheses regarding the origin and enrichment of manganese nodule deposits in the central Pacific. Nine sites between 20°N and 20°S along 134°W longitude were studied in detail to examine local as well as regional environmental associations and their influences on the development of the nodule facies of the central Pacific. Regional controls on surface productivity are the major control on the enrichment of nodules with trace metals of economic interest. Local effects of depth (sediment dissolution), bottom currents, slopes and local volcanism influence nodule deposit density, shape and size. The overlay of local influences on the general equatorial productivity pattern results in a generally symmetrical distribution of nodule geochemical characteristics about the equator, with more dense deposits of larger nodules north of the equator.