Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1
A manganese oxide encrustation (2.5 kg) was dredged, in an island arc setting, downslope of Bertrand bank, a seamount culminating at 70-m depth and located NNE of Grande-Terre, Guadeloupe, and SE of Antigua, West Indies. A thorough texturai analysis indicated a rhythmic precipitation and growth pola...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.858162 2024-09-15T18:31:06+00:00 Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1 Bouysse, Philippe Kang, Jung-Keuk Kosakevitch, A Lallier-Verges, Elisabeth LATITUDE: 16.658900 * LONGITUDE: -61.605020 * DATE/TIME START: 1978-01-07T00:00:00 * DATE/TIME END: 1978-01-07T00:00:00 1987 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.858162 https://doi.org/10.1594/PANGAEA.858162 en eng PANGAEA Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN https://doi.pangaea.de/10.1594/PANGAEA.858162 https://doi.org/10.1594/PANGAEA.858162 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Bouysse, Philippe; Kang, Jung-Keuk; Kosakevitch, A; Lallier-Verges, Elisabeth (1987): Hydrothermal manganese deposit of upper pliocene age from the Lesser Antilles outer arc (Bertrand bank) (in french). Oceanologica Acta, 10(4), 375-386, https://archimer.ifremer.fr/doc/00108/21897/19488.pdf 77007911_89_9672 ARCANTE1 ARCNT-89D Capricorne Caribbean Sea Dredge DRG NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS dataset publication series 1987 ftpangaea https://doi.org/10.1594/PANGAEA.85816210.7289/V52Z13FT10.7289/V53X84KN 2024-07-24T02:31:21Z A manganese oxide encrustation (2.5 kg) was dredged, in an island arc setting, downslope of Bertrand bank, a seamount culminating at 70-m depth and located NNE of Grande-Terre, Guadeloupe, and SE of Antigua, West Indies. A thorough texturai analysis indicated a rhythmic precipitation and growth polarity as well as mineralogical ( 10 A tektomanganate) and geochemical (low concentrations of Ni, Cu, Co, Zn, Pb and REE) criteria, point to a submarine hydrothermal origin for most of the sample. The crust was coated with a fine ferromanganese oxide cortex deposited iii a "normal" oceanic environment; it also included micritic fillings, a main pyroclastic zone near the top of the crust, and a Mg-Al sulphate deposit. Planktonic foraminifera coeval with the precipitation of the manganese oxide indicate an age of ca. 3 m. y. (upper Pliocene); i.e., more than 20 m. y. after the cessation of the volcanic activity of the Lesser Antilles outer arc that was responsible for the buildup of the Bertrand seamount. Furthermore, the genesis of the crust is not linked to the activity of the contemporaneous inner arc (Miocene to Present), particularly of its nearmost segment (Basse Terre, Guadeloupe-Montserrat) located about 50 km to the West. The authors suggest that the manganese oxide is the result of convective circulation of sea water through a faulted system occurring in an area of intense seismic activity. The remobilization of chemical elements (Mn, S, etc.) within the seamount volcanic core bas probably affected a substratum that was still hydrothermally altered during the previous volcanic activity of the outer arc. The authors insist on the interest in using texturai analysis for Fe/Mn oxide investigations. Other/Unknown Material Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-61.605020,-61.605020,16.658900,16.658900) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
77007911_89_9672 ARCANTE1 ARCNT-89D Capricorne Caribbean Sea Dredge DRG NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS |
spellingShingle |
77007911_89_9672 ARCANTE1 ARCNT-89D Capricorne Caribbean Sea Dredge DRG NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS Bouysse, Philippe Kang, Jung-Keuk Kosakevitch, A Lallier-Verges, Elisabeth Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1 |
topic_facet |
77007911_89_9672 ARCANTE1 ARCNT-89D Capricorne Caribbean Sea Dredge DRG NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS |
description |
A manganese oxide encrustation (2.5 kg) was dredged, in an island arc setting, downslope of Bertrand bank, a seamount culminating at 70-m depth and located NNE of Grande-Terre, Guadeloupe, and SE of Antigua, West Indies. A thorough texturai analysis indicated a rhythmic precipitation and growth polarity as well as mineralogical ( 10 A tektomanganate) and geochemical (low concentrations of Ni, Cu, Co, Zn, Pb and REE) criteria, point to a submarine hydrothermal origin for most of the sample. The crust was coated with a fine ferromanganese oxide cortex deposited iii a "normal" oceanic environment; it also included micritic fillings, a main pyroclastic zone near the top of the crust, and a Mg-Al sulphate deposit. Planktonic foraminifera coeval with the precipitation of the manganese oxide indicate an age of ca. 3 m. y. (upper Pliocene); i.e., more than 20 m. y. after the cessation of the volcanic activity of the Lesser Antilles outer arc that was responsible for the buildup of the Bertrand seamount. Furthermore, the genesis of the crust is not linked to the activity of the contemporaneous inner arc (Miocene to Present), particularly of its nearmost segment (Basse Terre, Guadeloupe-Montserrat) located about 50 km to the West. The authors suggest that the manganese oxide is the result of convective circulation of sea water through a faulted system occurring in an area of intense seismic activity. The remobilization of chemical elements (Mn, S, etc.) within the seamount volcanic core bas probably affected a substratum that was still hydrothermally altered during the previous volcanic activity of the outer arc. The authors insist on the interest in using texturai analysis for Fe/Mn oxide investigations. |
format |
Other/Unknown Material |
author |
Bouysse, Philippe Kang, Jung-Keuk Kosakevitch, A Lallier-Verges, Elisabeth |
author_facet |
Bouysse, Philippe Kang, Jung-Keuk Kosakevitch, A Lallier-Verges, Elisabeth |
author_sort |
Bouysse, Philippe |
title |
Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1 |
title_short |
Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1 |
title_full |
Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1 |
title_fullStr |
Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1 |
title_full_unstemmed |
Chemical composition and description of a ferromanganese crust, sample 89D, obtained during R/V Capricorne cruise ARCANTE 1 |
title_sort |
chemical composition and description of a ferromanganese crust, sample 89d, obtained during r/v capricorne cruise arcante 1 |
publisher |
PANGAEA |
publishDate |
1987 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.858162 https://doi.org/10.1594/PANGAEA.858162 |
op_coverage |
LATITUDE: 16.658900 * LONGITUDE: -61.605020 * DATE/TIME START: 1978-01-07T00:00:00 * DATE/TIME END: 1978-01-07T00:00:00 |
long_lat |
ENVELOPE(-61.605020,-61.605020,16.658900,16.658900) |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Supplement to: Bouysse, Philippe; Kang, Jung-Keuk; Kosakevitch, A; Lallier-Verges, Elisabeth (1987): Hydrothermal manganese deposit of upper pliocene age from the Lesser Antilles outer arc (Bertrand bank) (in french). Oceanologica Acta, 10(4), 375-386, https://archimer.ifremer.fr/doc/00108/21897/19488.pdf |
op_relation |
Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN https://doi.pangaea.de/10.1594/PANGAEA.858162 https://doi.org/10.1594/PANGAEA.858162 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.85816210.7289/V52Z13FT10.7289/V53X84KN |
_version_ |
1810472716670599168 |