Pelagic phosphorus accumulation in the Pacific Ocean
As a limiting nutrient to marine life, phosphorus (P) is an effective tracer of today's marine productivity. The distribution of P in marine sediments likewise tracks the history of marine productivity because of its relative insolubility in seawater. CaCO3, biogenic opal, terrigenous sediment,...
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1988
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.726936 https://doi.org/10.1594/PANGAEA.726936 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.726936 2023-05-15T13:42:09+02:00 Pelagic phosphorus accumulation in the Pacific Ocean Moody, Judith Chaboudy, Louis R Worsley, Thomas R MEDIAN LATITUDE: 4.215416 * MEDIAN LONGITUDE: -179.190623 * SOUTH-BOUND LATITUDE: -56.402200 * WEST-BOUND LONGITUDE: 110.111700 * NORTH-BOUND LATITUDE: 36.868500 * EAST-BOUND LONGITUDE: -113.842000 * DATE/TIME START: 1969-08-15T00:00:00 * DATE/TIME END: 1982-11-19T00:00:00 1988-08-31 application/zip, 10 datasets https://doi.pangaea.de/10.1594/PANGAEA.726936 https://doi.org/10.1594/PANGAEA.726936 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.726936 https://doi.org/10.1594/PANGAEA.726936 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Moody, Judith; Chaboudy, Louis R; Worsley, Thomas R (1988): Pacific pelagic phosphorus accumulation during the last 10 m.y. Paleoceanography, 3(1), 113-136, https://doi.org/10.1029/PA003i001p00113 28-266 32-310 62-463 7-62A 7-65 7-66A 85-572 89-586 9-77 Antarctic Ocean/RIDGE Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger GPC-3 Leg28 Leg32 Leg62 Leg7 Leg85 Leg89 Leg9 LL44-GPC-3 North Pacific North Pacific/BASIN North Pacific/CONT RISE North Pacific/HILL North Pacific/RIDGE North Pacific/SEAMOUNT PC Piston corer Silicon Cycling in the World Ocean SINOPS South Pacific Dataset 1988 ftpangaea https://doi.org/10.1594/PANGAEA.726936 https://doi.org/10.1029/PA003i001p00113 2023-01-20T07:31:29Z As a limiting nutrient to marine life, phosphorus (P) is an effective tracer of today's marine productivity. The distribution of P in marine sediments likewise tracks the history of marine productivity because of its relative insolubility in seawater. CaCO3, biogenic opal, terrigenous sediment, and total P have been measured in cores from nine Pacific sites (Deep Sea Drilling Project (DSDP) 65, 66, 310, 77, 62, 572, 463, 586, and GPC-3) and one subantarctic (DSDP 266) site. These sites were specifically chosen to provide information on biota burial flux changes with time for sedimentary sinks that represent key oceanographic variables, i.e., rate of upwelling, water depth, and carbonate dissolution gradient. The accumulation rates of these components for the last 10 Ma were then calculated from determined core age versus depth plots, core bulk density, and porosity data. The accumulation of P weakly correlates with that of CaCO3, moderately with that of total sediment, and very strongly with carbonate-free accumulation. Two prominent peaks for all components occur at 2-3 Ma and 5-6 Ma, and record the chemical loading of dissolved CaCO3, SiO2, and P from glacially emergent continental shelves. These results indicate that continental shelf phosphorites form during interglacially high sea levels and correspond to low deep-sea P accumulation rates, whereas glacially lowered sea levels allow for shelf bypassing and greater deep-sea P accumulation rates. Dataset Antarc* Antarctic Antarctic Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Antarctic Ocean Pacific ENVELOPE(110.111700,-113.842000,36.868500,-56.402200) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
28-266 32-310 62-463 7-62A 7-65 7-66A 85-572 89-586 9-77 Antarctic Ocean/RIDGE Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger GPC-3 Leg28 Leg32 Leg62 Leg7 Leg85 Leg89 Leg9 LL44-GPC-3 North Pacific North Pacific/BASIN North Pacific/CONT RISE North Pacific/HILL North Pacific/RIDGE North Pacific/SEAMOUNT PC Piston corer Silicon Cycling in the World Ocean SINOPS South Pacific |
spellingShingle |
28-266 32-310 62-463 7-62A 7-65 7-66A 85-572 89-586 9-77 Antarctic Ocean/RIDGE Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger GPC-3 Leg28 Leg32 Leg62 Leg7 Leg85 Leg89 Leg9 LL44-GPC-3 North Pacific North Pacific/BASIN North Pacific/CONT RISE North Pacific/HILL North Pacific/RIDGE North Pacific/SEAMOUNT PC Piston corer Silicon Cycling in the World Ocean SINOPS South Pacific Moody, Judith Chaboudy, Louis R Worsley, Thomas R Pelagic phosphorus accumulation in the Pacific Ocean |
topic_facet |
28-266 32-310 62-463 7-62A 7-65 7-66A 85-572 89-586 9-77 Antarctic Ocean/RIDGE Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger GPC-3 Leg28 Leg32 Leg62 Leg7 Leg85 Leg89 Leg9 LL44-GPC-3 North Pacific North Pacific/BASIN North Pacific/CONT RISE North Pacific/HILL North Pacific/RIDGE North Pacific/SEAMOUNT PC Piston corer Silicon Cycling in the World Ocean SINOPS South Pacific |
description |
As a limiting nutrient to marine life, phosphorus (P) is an effective tracer of today's marine productivity. The distribution of P in marine sediments likewise tracks the history of marine productivity because of its relative insolubility in seawater. CaCO3, biogenic opal, terrigenous sediment, and total P have been measured in cores from nine Pacific sites (Deep Sea Drilling Project (DSDP) 65, 66, 310, 77, 62, 572, 463, 586, and GPC-3) and one subantarctic (DSDP 266) site. These sites were specifically chosen to provide information on biota burial flux changes with time for sedimentary sinks that represent key oceanographic variables, i.e., rate of upwelling, water depth, and carbonate dissolution gradient. The accumulation rates of these components for the last 10 Ma were then calculated from determined core age versus depth plots, core bulk density, and porosity data. The accumulation of P weakly correlates with that of CaCO3, moderately with that of total sediment, and very strongly with carbonate-free accumulation. Two prominent peaks for all components occur at 2-3 Ma and 5-6 Ma, and record the chemical loading of dissolved CaCO3, SiO2, and P from glacially emergent continental shelves. These results indicate that continental shelf phosphorites form during interglacially high sea levels and correspond to low deep-sea P accumulation rates, whereas glacially lowered sea levels allow for shelf bypassing and greater deep-sea P accumulation rates. |
format |
Dataset |
author |
Moody, Judith Chaboudy, Louis R Worsley, Thomas R |
author_facet |
Moody, Judith Chaboudy, Louis R Worsley, Thomas R |
author_sort |
Moody, Judith |
title |
Pelagic phosphorus accumulation in the Pacific Ocean |
title_short |
Pelagic phosphorus accumulation in the Pacific Ocean |
title_full |
Pelagic phosphorus accumulation in the Pacific Ocean |
title_fullStr |
Pelagic phosphorus accumulation in the Pacific Ocean |
title_full_unstemmed |
Pelagic phosphorus accumulation in the Pacific Ocean |
title_sort |
pelagic phosphorus accumulation in the pacific ocean |
publisher |
PANGAEA |
publishDate |
1988 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.726936 https://doi.org/10.1594/PANGAEA.726936 |
op_coverage |
MEDIAN LATITUDE: 4.215416 * MEDIAN LONGITUDE: -179.190623 * SOUTH-BOUND LATITUDE: -56.402200 * WEST-BOUND LONGITUDE: 110.111700 * NORTH-BOUND LATITUDE: 36.868500 * EAST-BOUND LONGITUDE: -113.842000 * DATE/TIME START: 1969-08-15T00:00:00 * DATE/TIME END: 1982-11-19T00:00:00 |
long_lat |
ENVELOPE(110.111700,-113.842000,36.868500,-56.402200) |
geographic |
Antarctic Antarctic Ocean Pacific |
geographic_facet |
Antarctic Antarctic Ocean Pacific |
genre |
Antarc* Antarctic Antarctic Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean |
op_source |
Supplement to: Moody, Judith; Chaboudy, Louis R; Worsley, Thomas R (1988): Pacific pelagic phosphorus accumulation during the last 10 m.y. Paleoceanography, 3(1), 113-136, https://doi.org/10.1029/PA003i001p00113 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.726936 https://doi.org/10.1594/PANGAEA.726936 |
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.726936 https://doi.org/10.1029/PA003i001p00113 |
_version_ |
1766163541728952320 |