Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528
Little is known about the fluxes to and from the ocean during the Cenozoic of phosphorus (P), a limiting nutrient for oceanic primary productivity and organic carbon burial on geologic timescales. Previous studies have concluded that dissolved river fluxes increased worldwide during the Cenozoic and...
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ftdatacite:10.1594/pangaea.729787 2023-05-15T18:25:57+02:00 Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528 Delaney, Margaret Lois Filipelli, Gabriel M 1994 application/zip https://dx.doi.org/10.1594/pangaea.729787 https://doi.pangaea.de/10.1594/PANGAEA.729787 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/94pa00795 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg130 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 1994 ftdatacite https://doi.org/10.1594/pangaea.729787 https://doi.org/10.1029/94pa00795 2022-02-08T16:24:46Z Little is known about the fluxes to and from the ocean during the Cenozoic of phosphorus (P), a limiting nutrient for oceanic primary productivity and organic carbon burial on geologic timescales. Previous studies have concluded that dissolved river fluxes increased worldwide during the Cenozoic and that organic carbon burial decreased relative to calcium carbonate burial and perhaps in absolute terms as well. To examine the apparent contradiction between increased river fluxes of P (assuming P fluxes behave like the others) expected to drive increased organic carbon burial and observations indicating decreased organic carbon burial, we determined P accumulation rates for equatorial Pacific sediments from Ocean Drilling Program leg 138 sites in the eastern equatorial Pacific and leg 130 sites on the Ontong Java Plateau in the western equatorial Pacific. Although there are site specific and depth dependent effects on P accumulation rates, there are important features common to the records at all sites. P accumulation rates declined from 50 to 20 Ma, showed some variability from 20 to 10 Ma, and had a substantial peak from 9 to 3 Ma centered at 5-6 Ma. These changes in P accumulation rates for the equatorial Pacific are equivalent to substantial changes in the P mass balance. However, the pattern resembles neither that of weathering flux indicators (87Sr/86Sr and Ge/Si ratios) nor that of the carbon isotope record reflecting changes in organic carbon burial rates. Although these P accumulation rate patterns need confirmation from other regions with sediment burial significant in global mass balances (e.g., the North Pacific and Southern Ocean), it appears that P weathering inputs to the ocean are decoupled from those of other elements and that further exploration is needed of the relationship between P burial and net organic carbon burial. Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Pacific Southern Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg130 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg130 Joides Resolution Ocean Drilling Program ODP Delaney, Margaret Lois Filipelli, Gabriel M Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528 |
topic_facet |
Drilling/drill rig Leg130 Joides Resolution Ocean Drilling Program ODP |
description |
Little is known about the fluxes to and from the ocean during the Cenozoic of phosphorus (P), a limiting nutrient for oceanic primary productivity and organic carbon burial on geologic timescales. Previous studies have concluded that dissolved river fluxes increased worldwide during the Cenozoic and that organic carbon burial decreased relative to calcium carbonate burial and perhaps in absolute terms as well. To examine the apparent contradiction between increased river fluxes of P (assuming P fluxes behave like the others) expected to drive increased organic carbon burial and observations indicating decreased organic carbon burial, we determined P accumulation rates for equatorial Pacific sediments from Ocean Drilling Program leg 138 sites in the eastern equatorial Pacific and leg 130 sites on the Ontong Java Plateau in the western equatorial Pacific. Although there are site specific and depth dependent effects on P accumulation rates, there are important features common to the records at all sites. P accumulation rates declined from 50 to 20 Ma, showed some variability from 20 to 10 Ma, and had a substantial peak from 9 to 3 Ma centered at 5-6 Ma. These changes in P accumulation rates for the equatorial Pacific are equivalent to substantial changes in the P mass balance. However, the pattern resembles neither that of weathering flux indicators (87Sr/86Sr and Ge/Si ratios) nor that of the carbon isotope record reflecting changes in organic carbon burial rates. Although these P accumulation rate patterns need confirmation from other regions with sediment burial significant in global mass balances (e.g., the North Pacific and Southern Ocean), it appears that P weathering inputs to the ocean are decoupled from those of other elements and that further exploration is needed of the relationship between P burial and net organic carbon burial. |
format |
Article in Journal/Newspaper |
author |
Delaney, Margaret Lois Filipelli, Gabriel M |
author_facet |
Delaney, Margaret Lois Filipelli, Gabriel M |
author_sort |
Delaney, Margaret Lois |
title |
Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528 |
title_short |
Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528 |
title_full |
Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528 |
title_fullStr |
Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528 |
title_full_unstemmed |
Phosphorus concentrations and accumulation rates of ODP Leg 130 sites, supplement to: Delaney, Margaret Lois; Filipelli, Gabriel M (1994): An apparent contradiction in the role of phosphorus in Cenozoic chemical mass balances for the world ocean. Paleoceanography, 9(4), 513-528 |
title_sort |
phosphorus concentrations and accumulation rates of odp leg 130 sites, supplement to: delaney, margaret lois; filipelli, gabriel m (1994): an apparent contradiction in the role of phosphorus in cenozoic chemical mass balances for the world ocean. paleoceanography, 9(4), 513-528 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1994 |
url |
https://dx.doi.org/10.1594/pangaea.729787 https://doi.pangaea.de/10.1594/PANGAEA.729787 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://dx.doi.org/10.1029/94pa00795 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.729787 https://doi.org/10.1029/94pa00795 |
_version_ |
1766207688548548608 |