Annotated record of the detailed examination of manganese nodules from around the world oceans

Manganese nodules collected off Baja California have layers (zones) which are texturally and compositionally distinct. Massive and mottled zones consist mostly of cryptocrystalline todorokite and birnessite containing relatively high concentrations of Mn, Ni and Cu. Compact, columnar and laminated z...

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Bibliographic Details
Main Authors: Sorem, Ronald K, Foster, Allan R
Format: Dataset
Language:English
Published: PANGAEA 1972
Subjects:
Blake Plateau
Atlantic Ocean
Carlsberg Ridge
D16
D6269
Date/Time of event
Deposit type
DEPTH
sediment/rock
Description
Discovery (1962)
Dredge
rock
DRG
DRG_R
DSV70-BP3
Elevation of event
ELT06
ELT06.007-BT
Eltanin
Event label
Latitude of event
Longitude of event
Method/Device of event
NOAA and MMS Marine Minerals Geochemical Database
NOAA-MMS
Pacific Ocean
Position
Quantity of deposit
Sample code/label
Sample ID
SAN_JUAN_1963
Size
SNJ-DH3
SNJ-DH5
Southern Ocean
Spencer F. Baird
Substrate type
TRAWL
Trawl net
Uniform resource locator/link to image
Baja
Pacific
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.879759
https://doi.org/10.1594/PANGAEA.879759
Description
Summary:Manganese nodules collected off Baja California have layers (zones) which are texturally and compositionally distinct. Massive and mottled zones consist mostly of cryptocrystalline todorokite and birnessite containing relatively high concentrations of Mn, Ni and Cu. Compact, columnar and laminated zones consist mostly of more iron- rich opaque amorphous material. Within these two groups the individual zones can be distinguished in part by their clay content. These results indicate that systematic research on nodule chemistry, mineralogy, growth rates and beneficiation should include careful analysis of individual layers within the nodules.

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