Geochemistry on manganese nodules from the central Pacific, supplement to: Marchig, Vesna; Gundlach, Heinrich (1976): Zur Geochemie von Manganknollen aus dem Zentralpazifik und ihrer Sedimentunterlage - 1. Manganknollen = On the geochemistry of manganese nodules from the central Pacific and their underlying sediments - 1. Manganese nodules. In: G. Ludwig; H. Müller; K. Vollbrecht (eds) Sediments on the Iceland Faeroe Ridge, 27 pp; ISBN 978-3-510-96176-4, Geologisches Jahrbuch Reihe D, D16, 59-77

• Main Authors: Marchig, Vesna, Gundlach, Heinrich
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 1976
• Subjects: Piston corer; Dredge; VA-04/1; Valdivia 1961; NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS; Pacific; Iceland
• Online Access: https://dx.doi.org/10.1594/pangaea.860194; https://doi.pangaea.de/10.1594/PANGAEA.860194

During Cruise VA 04/2 of the R. V. Valdivia in 1972, numerous samples were collected of manganese nodules, sodiments, and the pore water of the Sediments in the area betwoen 6° N and 11° N and between 149° W and 154° W in the Central Pacific. This paper reports on the geochemical study of 70 manganese nodules from 12 stations (box-core and dredge samples). The nodules Irom a single Station vary considerably in diemical composition. These variations are of the same magnitude as the variations in nodule composition over the entire survey area. The ratios of manganese to nickel, copper, and zinc show good positive correlation as do the ratios of iron to lead and, to a lesser extent, of iron to cobalt. No correlation was found between the environment of the manganese nodules and their metal content. Three internal zones, the outer. intermediate, and core zones, of some nodules were studied in detail. Trends of differences of Chemical composition from surface to core were found for numerous elements and elemental ratios.