(Table 1, Page 94) Elemental abundances in ferromanganese nodules and crusts from the Pernambuco Plateau and guyots off northeast Brazil

Ferromanganese deposits, mostly manganese crusts, are common in elevations along the northeastern Brazilian continental margin. Association of the deposits with more or less altered basaltic rock can be observed. On the Pernambuco Plateau and Ceara Guyot, ferromanganese deposits occur associated wit...

Full description

Bibliographic Details
Main Author: Xavier, A
Format: Dataset
Language:English
Published: PANGAEA 1982
Subjects:
ALMC_D-16
ALMC_D-4
ALMC_D-40
ALMC_D-41
ALMC_D-42
ALMC_D-43
ALMC_D-46
ALMC_D-48
ALMC_D-49
ALMC_D-52
ALMC_D-53
ALMC_D-7
ALMC_P-80
ALMC_P-81
ALMC_P-90
ALMC_P-93
Aluminium
Area/locality
Barium
Calcium
Cobalt
Copper
DEPTH
sediment/rock
Dredge
DRG
Elevation of event
Event label
Iron
Latitude of event
Longitude of event
Manganese
Nickel
NOAA and MMS Marine Minerals Geochemical Database
NOAA-MMS
Phosphorus
Potassium
Sample ID
Silicon
South Atlantic Ocean
Titanium
Vanadium
X-ray fluorescence (XRF)
Zinc
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.857854
https://doi.org/10.1594/PANGAEA.857854
Description
Summary:Ferromanganese deposits, mostly manganese crusts, are common in elevations along the northeastern Brazilian continental margin. Association of the deposits with more or less altered basaltic rock can be observed. On the Pernambuco Plateau and Ceara Guyot, ferromanganese deposits occur associated with phosphatic material and nodules. The mineralogical composition of the ferromanganese deposits indicates a predominance of the manganese oxide phase dMnO2. Low contents of Mn and Cu are characteristic of their chemical composition. Fe and Mn in the deposits probably precipitated from the sea water.

Similar Items