Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ...
The shale-normalized REE patterns of manganese nodules from the northwest Atlantic show enrichment in Sm and Eu relative to the heavier and lighter REE, excluding Ce, and are similar to the patterns previously observed in deep water (> 3000m) nodules from the Pacific. The inverse relation of this...
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ftdatacite:10.1594/pangaea.943839 2023-10-01T03:58:22+02:00 Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ... Addy, Sunit Kumar 2022 application/zip https://dx.doi.org/10.1594/pangaea.943839 https://doi.pangaea.de/10.1594/PANGAEA.943839 en eng PANGAEA https://dx.doi.org/10.1016/0016-7037(79)90097-8 https://dx.doi.org/10.7289/v52z13ft https://dx.doi.org/10.7289/v53x84kn Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Geochemistry FOS Earth and related environmental sciences manganese micronodule manganese nodule ocean sediment NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS Bundled Publication of Datasets Collection article 2022 ftdatacite https://doi.org/10.1594/pangaea.94383910.1016/0016-7037(79)90097-810.7289/v52z13ft10.7289/v53x84kn 2023-09-04T15:17:55Z The shale-normalized REE patterns of manganese nodules from the northwest Atlantic show enrichment in Sm and Eu relative to the heavier and lighter REE, excluding Ce, and are similar to the patterns previously observed in deep water (> 3000m) nodules from the Pacific. The inverse relation of this pattern to that of sea water and the high Ce anomaly (average 5.5) indicate that probably the REE in the nodules originate from sea water and the nodules are possibly hydrogenous. The patterns for micronodules are similar to those of the nodules but the concentrations of REE were substantially higher in two of them. The red clay occurring on abyssal hills where nodules and micronodules are found also shows higher REE concentrations over terrigenous gray clay. The latter is devoid of nodules and micronodules and occurs in abyssal plains. The excess REE in the red clay also show a pattern similar to those of the nodules and micronodules. Most of the micronodule samples show a lower Ce anomaly (1.7) and lower Co ... : From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database. ... Article in Journal/Newspaper Northwest Atlantic DataCite Metadata Store (German National Library of Science and Technology) Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Geochemistry FOS Earth and related environmental sciences manganese micronodule manganese nodule ocean sediment NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS |
spellingShingle |
Geochemistry FOS Earth and related environmental sciences manganese micronodule manganese nodule ocean sediment NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS Addy, Sunit Kumar Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ... |
topic_facet |
Geochemistry FOS Earth and related environmental sciences manganese micronodule manganese nodule ocean sediment NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS |
description |
The shale-normalized REE patterns of manganese nodules from the northwest Atlantic show enrichment in Sm and Eu relative to the heavier and lighter REE, excluding Ce, and are similar to the patterns previously observed in deep water (> 3000m) nodules from the Pacific. The inverse relation of this pattern to that of sea water and the high Ce anomaly (average 5.5) indicate that probably the REE in the nodules originate from sea water and the nodules are possibly hydrogenous. The patterns for micronodules are similar to those of the nodules but the concentrations of REE were substantially higher in two of them. The red clay occurring on abyssal hills where nodules and micronodules are found also shows higher REE concentrations over terrigenous gray clay. The latter is devoid of nodules and micronodules and occurs in abyssal plains. The excess REE in the red clay also show a pattern similar to those of the nodules and micronodules. Most of the micronodule samples show a lower Ce anomaly (1.7) and lower Co ... : From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database. ... |
format |
Article in Journal/Newspaper |
author |
Addy, Sunit Kumar |
author_facet |
Addy, Sunit Kumar |
author_sort |
Addy, Sunit Kumar |
title |
Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ... |
title_short |
Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ... |
title_full |
Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ... |
title_fullStr |
Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ... |
title_full_unstemmed |
Rare earth element composition of manganese nodules and micronodules from the northwest Atlantic ... |
title_sort |
rare earth element composition of manganese nodules and micronodules from the northwest atlantic ... |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://dx.doi.org/10.1594/pangaea.943839 https://doi.pangaea.de/10.1594/PANGAEA.943839 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_relation |
https://dx.doi.org/10.1016/0016-7037(79)90097-8 https://dx.doi.org/10.7289/v52z13ft https://dx.doi.org/10.7289/v53x84kn |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.94383910.1016/0016-7037(79)90097-810.7289/v52z13ft10.7289/v53x84kn |
_version_ |
1778531070570921984 |