(Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D
A detailed study of a nodule from the Somali Basin dated by 230Thexcess was correlated with the paleoceanographic events recorded in Site 236 (Leg 24) Deep Sea Drilling Project (DSDP) cores. Tentative indications are that the phase of nodule accretion starting with the development of pillar structur...
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1993
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.759572 https://doi.org/10.1594/PANGAEA.759572 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.759572 2023-05-15T13:55:14+02:00 (Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D Banakar, Virupaxa K Nair, R R Tarkian, M Haake, Birgit LATITUDE: -6.000000 * LONGITUDE: 52.000000 * MINIMUM DISTANCE: 0.1 cm * MAXIMUM DISTANCE: 1.9 cm 1993-04-19 text/tab-separated-values, 110 data points https://doi.pangaea.de/10.1594/PANGAEA.759572 https://doi.org/10.1594/PANGAEA.759572 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.759572 https://doi.org/10.1594/PANGAEA.759572 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Banakar, Virupaxa K; Nair, R R; Tarkian, M; Haake, Birgit (1993): Neogene oceanographic variations recorded in manganese nodules from the Somali Basin. Marine Geology, 110(3-4), 393-402, https://doi.org/10.1016/0025-3227(93)90096-E Carbon organic total Cobalt Copper DISTANCE Element analyser AAS graphite furnace Perkin-Elmer 5000 Element analyser CHN Carlo Erba EA1500 FFGR Free-fall grab Insoluble residue Iron Iron/Manganese ratio Manganese Maximum Minimum Nickel Quartz RVG-10D Somalia Basin Dataset 1993 ftpangaea https://doi.org/10.1594/PANGAEA.759572 https://doi.org/10.1016/0025-3227(93)90096-E 2023-01-20T08:52:08Z A detailed study of a nodule from the Somali Basin dated by 230Thexcess was correlated with the paleoceanographic events recorded in Site 236 (Leg 24) Deep Sea Drilling Project (DSDP) cores. Tentative indications are that the phase of nodule accretion starting with the development of pillar structure at a depth of 20 mm in the nodule around 13 Ma coincides with increased Antarctic Bottom Water (AABW) flow and an elevated calciumcarbonate compensation depth (CCD). The Late Miocene lowering of the CCD is represented by the mottled zones between 8 and 18 mm in the nodule is characterised by an abundant silicate component (>20%) of aeolian origin. The Miocene/Pliocene boundary (5 Ma) occurs at a depth of about 8 mm and is represented by the development of pillar structure and a minimum of aeolian dust (10.3%). The increased biological productivity of the Somali surface water since the Middle Miocene is demonstrated by the increasing Corg content of the nodule (from 0.11 to 0.19%) towards its surface. Dataset Antarc* Antarctic PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Pillar ENVELOPE(166.217,166.217,-77.583,-77.583) ENVELOPE(52.000000,52.000000,-6.000000,-6.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Carbon organic total Cobalt Copper DISTANCE Element analyser AAS graphite furnace Perkin-Elmer 5000 Element analyser CHN Carlo Erba EA1500 FFGR Free-fall grab Insoluble residue Iron Iron/Manganese ratio Manganese Maximum Minimum Nickel Quartz RVG-10D Somalia Basin |
spellingShingle |
Carbon organic total Cobalt Copper DISTANCE Element analyser AAS graphite furnace Perkin-Elmer 5000 Element analyser CHN Carlo Erba EA1500 FFGR Free-fall grab Insoluble residue Iron Iron/Manganese ratio Manganese Maximum Minimum Nickel Quartz RVG-10D Somalia Basin Banakar, Virupaxa K Nair, R R Tarkian, M Haake, Birgit (Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D |
topic_facet |
Carbon organic total Cobalt Copper DISTANCE Element analyser AAS graphite furnace Perkin-Elmer 5000 Element analyser CHN Carlo Erba EA1500 FFGR Free-fall grab Insoluble residue Iron Iron/Manganese ratio Manganese Maximum Minimum Nickel Quartz RVG-10D Somalia Basin |
description |
A detailed study of a nodule from the Somali Basin dated by 230Thexcess was correlated with the paleoceanographic events recorded in Site 236 (Leg 24) Deep Sea Drilling Project (DSDP) cores. Tentative indications are that the phase of nodule accretion starting with the development of pillar structure at a depth of 20 mm in the nodule around 13 Ma coincides with increased Antarctic Bottom Water (AABW) flow and an elevated calciumcarbonate compensation depth (CCD). The Late Miocene lowering of the CCD is represented by the mottled zones between 8 and 18 mm in the nodule is characterised by an abundant silicate component (>20%) of aeolian origin. The Miocene/Pliocene boundary (5 Ma) occurs at a depth of about 8 mm and is represented by the development of pillar structure and a minimum of aeolian dust (10.3%). The increased biological productivity of the Somali surface water since the Middle Miocene is demonstrated by the increasing Corg content of the nodule (from 0.11 to 0.19%) towards its surface. |
format |
Dataset |
author |
Banakar, Virupaxa K Nair, R R Tarkian, M Haake, Birgit |
author_facet |
Banakar, Virupaxa K Nair, R R Tarkian, M Haake, Birgit |
author_sort |
Banakar, Virupaxa K |
title |
(Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D |
title_short |
(Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D |
title_full |
(Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D |
title_fullStr |
(Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D |
title_full_unstemmed |
(Table 1) Compositional variation with depth in a nodule of sediment sample RVG-10D |
title_sort |
(table 1) compositional variation with depth in a nodule of sediment sample rvg-10d |
publisher |
PANGAEA |
publishDate |
1993 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.759572 https://doi.org/10.1594/PANGAEA.759572 |
op_coverage |
LATITUDE: -6.000000 * LONGITUDE: 52.000000 * MINIMUM DISTANCE: 0.1 cm * MAXIMUM DISTANCE: 1.9 cm |
long_lat |
ENVELOPE(166.217,166.217,-77.583,-77.583) ENVELOPE(52.000000,52.000000,-6.000000,-6.000000) |
geographic |
Antarctic Pillar |
geographic_facet |
Antarctic Pillar |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Supplement to: Banakar, Virupaxa K; Nair, R R; Tarkian, M; Haake, Birgit (1993): Neogene oceanographic variations recorded in manganese nodules from the Somali Basin. Marine Geology, 110(3-4), 393-402, https://doi.org/10.1016/0025-3227(93)90096-E |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.759572 https://doi.org/10.1594/PANGAEA.759572 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.759572 https://doi.org/10.1016/0025-3227(93)90096-E |
_version_ |
1766261542668468224 |