Compositional variations in manganese nodules collected from the North Penrhyn Basin

Autor:	Lin Zhenhong, R. A. Hodkinson, D. S. Cronan, Li Xuelun
Rok vydání:	1991
Předmět:	Nodule (geology) Analytical chemistry chemistry.chemical_element Mineralogy Manganese Structural basin engineering.material Oceanography Metal chemistry visual_art visual_art.visual_art_medium engineering Carbonate compensation depth Geology Water Science and Technology
Zdroj:	Chinese Journal of Oceanology and Limnology. 9:347-357
ISSN:	1993-5005 0254-4059
DOI:	10.1007/bf02850650
Popis:	Manganese nodules collected from the North Penrhyn Basin are characterized by low content of Mn and Fe, medium content of Ni and Cu, and medium Mn/Fe ratios. The average content of Ni plus Co is 1.11%, maximum 1.89%. Ni content slightly exceeds the Cu content in the nodules. Ni and Cu are strongly correlated with Mn, whereas Co is strongly correlated with Fe. Nodules containing Ni+Cu+Co near or in excess of 1% are rich in Mn and have a high Mn/Fe ratio. Those with highest content of Ni+Cu+Co are concentrated at or near the carbonate compensation depth. Nodules metal contents vary with latitude and have a reciprocal relationship with abundance. Contents of Mn, Ni, Cu and Ni+Cu+Co are high in nodules found at 2–6°S and vary decreasingly toward 1°N and 12°S, whereas Co content varies increasingly from 2°S towards 12°S. Nodule compositional variations with latitude are controlled by biological productivity, carbonate compensation depth, sedimentation rate, and bottom current.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7ee9a02eaf11e9d70a99d5df297bec16 https://doi.org/10.1007/bf02850650 Zobrazit plný text záznamu Full text from SpringerLink