Mineralogy and Composition of Manganese Crusts and Nodules and Sediments from the Manihiki Plateau and Adjacent Areas: Results of HMNZS Tui Cruises
Document Type
Article
Publication Date
7-1-1995
Department
Geography and Geology
School
Biological, Environmental, and Earth Sciences
Abstract
Forty-four sediment samples and 23 Mn crusts and Mn nodules have been analyzed for several elements in order to characterize their geochemical nature. Most of the Mn crusts and Mn nodules are of hydrogenous origin, although one dust (U375) from the flanks of the Rarotonga volcano is thought to be of hydrothemal origin. delta-MnO2 is the principal Mn mineral in the crusts, whereas todorokite and bimessite occur in addition to delta-MnO2 in the nodules. The sediments can be divided into carbonates, with calcite as the dominant phase, and deep-sea clay, consisting mainly of illite and smectite.
Publication Title
Marine Georesources & Geotechnology
Volume
13
Issue
3
First Page
321
Last Page
337
Recommended Citation
Walter, P.,
Glasby, G.,
Plüger, W.,
Kunzendorf, H.,
Meylan, M.
(1995). Mineralogy and Composition of Manganese Crusts and Nodules and Sediments from the Manihiki Plateau and Adjacent Areas: Results of HMNZS Tui Cruises. Marine Georesources & Geotechnology, 13(3), 321-337.
Available at: https://aquila.usm.edu/fac_pubs/5979