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Geochemistry of ferromanganese concretions in the Barents Sea
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0003-2276-0564
1985 (English)In: Marine Geology, ISSN 0025-3227, E-ISSN 1872-6151, Vol. 67, no 1-2, p. 101-119Article in journal (Refereed) Published
Abstract [en]

Ferromanganese concretions from ten stations in the Barents Sea have been analysed for 24 elements. The deposits occur as discoidal and flat concretions and as coatings, in the latter case on lithified or detrital material or as extensive pavements on the Svalbard shelf. The concretions are compositionally similar to Baltic concretions but differ considerably from deep-ocean nodules, particularly in Cu, Ni and Co contents. Statistical analyses reveal distinct correlations between Mn, Na, Ba, Ni and Cu; the Mn-rich coatings showed enrichment of Mo, Zn and possibly Co in a Mn-phase. The iron phase holds high concretions of P and As. Two iron-rich concretions with high contents of P, Ca, Sr, Y, Yb and La were found east and northeast of Spitsbergen Banken, probably indicating upwelling of nutrient-rich, cold polar water along the Svalbard shelf.

Place, publisher, year, edition, pages
1985. Vol. 67, no 1-2, p. 101-119
National Category
Geochemistry
Research subject
Applied Geology
Identifiers
URN: urn:nbn:se:ltu:diva-10095DOI: 10.1016/0025-3227(85)90150-1ISI: A1985ASU8500006Scopus ID: 2-s2.0-0022266755Local ID: 8d771890-e610-11dc-bcb4-000ea68e967bOAI: oai:DiVA.org:ltu-10095DiVA, id: diva2:983035
Note
Godkänd; 1985; 20080228 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Ingri, Johan

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