d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C
We have assessed the reliability of several foraminifer-hosted proxies of the ocean carbonate system (d11B, B/Ca, and U/Ca) using Holocene samples from the Atlantic and Pacific oceans. We examined chemical variability over a range of test sizes for two surface-dwelling foraminifers (Globigerinoides...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.832875 2023-05-15T17:37:12+02:00 d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C Ni, Yunyan Foster, Gavin L Bailey, Trevor R Elliott, Tim Schmidt, Daniela N Pearson, Paul N Haley, Brian A Coath, Chris MEDIAN LATITUDE: -0.347067 * MEDIAN LONGITUDE: 75.433500 * SOUTH-BOUND LATITUDE: -1.467000 * WEST-BOUND LONGITUDE: -23.227500 * NORTH-BOUND LATITUDE: 0.318500 * EAST-BOUND LONGITUDE: 159.361000 * DATE/TIME START: 1971-03-23T00:00:00 * DATE/TIME END: 1990-02-23T01:30:00 * MINIMUM DEPTH, sediment/rock: 0.02 m * MAXIMUM DEPTH, sediment/rock: 0.02 m 2007-05-21 text/tab-separated-values, 494 data points https://doi.pangaea.de/10.1594/PANGAEA.832875 https://doi.org/10.1594/PANGAEA.832875 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.832875 https://doi.org/10.1594/PANGAEA.832875 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Ni, Yunyan; Foster, Gavin L; Bailey, Trevor R; Elliott, Tim; Schmidt, Daniela N; Pearson, Paul N; Haley, Brian A; Coath, Chris (2007): A core top assessment of proxies for the ocean carbonate system in surface-dwelling foraminifers. Paleoceanography, 22(3), PA3212, https://doi.org/10.1029/2006PA001337 108-664C 130-806B Aluminium/Calcium ratio Barium/Calcium ratio Boron/Calcium ratio Cadmium/Calcium ratio DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg108 Leg130 Lithium/Calcium ratio Magnesium/Calcium ratio Manganese/Calcium ratio Negative-thermal ionization mass spectrometry (N-TIMS) Neodymium/Calcium ratio North Atlantic Ocean North Pacific Ocean Ocean Drilling Program ODP PC Piston corer RC14 RC14-37 Replicates Robert Conrad Sample code/label Size fraction Sodium/Calcium ratio Species Strontium/Calcium ratio Uranium/Calcium ratio δ11B standard deviation Dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.832875 https://doi.org/10.1029/2006PA001337 2023-01-20T09:03:19Z We have assessed the reliability of several foraminifer-hosted proxies of the ocean carbonate system (d11B, B/Ca, and U/Ca) using Holocene samples from the Atlantic and Pacific oceans. We examined chemical variability over a range of test sizes for two surface-dwelling foraminifers (Globigerinoides sacculifer and Globigerinoides ruber). Measurements of d11B in G. ruber show no significant relationship with test size in either Atlantic or Pacific sites and appear to provide a robust proxy of surface seawater pH. Likewise there is no significant variability in the d11B of our Atlantic core top G. sacculifer, but we find that d11B increases with increasing test size for G. sacculifer in the Pacific. These systematic differences in d11B are inferred to be a consequence of isotopically light gametogenic calcite in G. sacculifer and its preferential preservation during postdepositional dissolution. The trace element ratio proxies of ocean carbonate equilibria, U/Ca and B/Ca, show systematic increases in both G. ruber and G. sacculifer with increasing test size, possibly as a result of changing growth rates. This behavior complicates their use in paleoceanographic reconstructions. In keeping with several previous studies we find that Mg/Ca ratios increase with increasing size fraction in our well-preserved Atlantic G. sacculifer but not in G. ruber. In contrast to previous interpretations we suggest that these observations reflect a proportionally larger influence of compositionally distinct gametogenic calcite in small individuals compared to larger ones. As with d11B this influences G. sacculifer but not G. ruber, which has negligible gametogenic calcite. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(-23.227500,159.361000,0.318500,-1.467000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
108-664C 130-806B Aluminium/Calcium ratio Barium/Calcium ratio Boron/Calcium ratio Cadmium/Calcium ratio DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg108 Leg130 Lithium/Calcium ratio Magnesium/Calcium ratio Manganese/Calcium ratio Negative-thermal ionization mass spectrometry (N-TIMS) Neodymium/Calcium ratio North Atlantic Ocean North Pacific Ocean Ocean Drilling Program ODP PC Piston corer RC14 RC14-37 Replicates Robert Conrad Sample code/label Size fraction Sodium/Calcium ratio Species Strontium/Calcium ratio Uranium/Calcium ratio δ11B standard deviation |
spellingShingle |
108-664C 130-806B Aluminium/Calcium ratio Barium/Calcium ratio Boron/Calcium ratio Cadmium/Calcium ratio DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg108 Leg130 Lithium/Calcium ratio Magnesium/Calcium ratio Manganese/Calcium ratio Negative-thermal ionization mass spectrometry (N-TIMS) Neodymium/Calcium ratio North Atlantic Ocean North Pacific Ocean Ocean Drilling Program ODP PC Piston corer RC14 RC14-37 Replicates Robert Conrad Sample code/label Size fraction Sodium/Calcium ratio Species Strontium/Calcium ratio Uranium/Calcium ratio δ11B standard deviation Ni, Yunyan Foster, Gavin L Bailey, Trevor R Elliott, Tim Schmidt, Daniela N Pearson, Paul N Haley, Brian A Coath, Chris d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C |
topic_facet |
108-664C 130-806B Aluminium/Calcium ratio Barium/Calcium ratio Boron/Calcium ratio Cadmium/Calcium ratio DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg108 Leg130 Lithium/Calcium ratio Magnesium/Calcium ratio Manganese/Calcium ratio Negative-thermal ionization mass spectrometry (N-TIMS) Neodymium/Calcium ratio North Atlantic Ocean North Pacific Ocean Ocean Drilling Program ODP PC Piston corer RC14 RC14-37 Replicates Robert Conrad Sample code/label Size fraction Sodium/Calcium ratio Species Strontium/Calcium ratio Uranium/Calcium ratio δ11B standard deviation |
description |
We have assessed the reliability of several foraminifer-hosted proxies of the ocean carbonate system (d11B, B/Ca, and U/Ca) using Holocene samples from the Atlantic and Pacific oceans. We examined chemical variability over a range of test sizes for two surface-dwelling foraminifers (Globigerinoides sacculifer and Globigerinoides ruber). Measurements of d11B in G. ruber show no significant relationship with test size in either Atlantic or Pacific sites and appear to provide a robust proxy of surface seawater pH. Likewise there is no significant variability in the d11B of our Atlantic core top G. sacculifer, but we find that d11B increases with increasing test size for G. sacculifer in the Pacific. These systematic differences in d11B are inferred to be a consequence of isotopically light gametogenic calcite in G. sacculifer and its preferential preservation during postdepositional dissolution. The trace element ratio proxies of ocean carbonate equilibria, U/Ca and B/Ca, show systematic increases in both G. ruber and G. sacculifer with increasing test size, possibly as a result of changing growth rates. This behavior complicates their use in paleoceanographic reconstructions. In keeping with several previous studies we find that Mg/Ca ratios increase with increasing size fraction in our well-preserved Atlantic G. sacculifer but not in G. ruber. In contrast to previous interpretations we suggest that these observations reflect a proportionally larger influence of compositionally distinct gametogenic calcite in small individuals compared to larger ones. As with d11B this influences G. sacculifer but not G. ruber, which has negligible gametogenic calcite. |
format |
Dataset |
author |
Ni, Yunyan Foster, Gavin L Bailey, Trevor R Elliott, Tim Schmidt, Daniela N Pearson, Paul N Haley, Brian A Coath, Chris |
author_facet |
Ni, Yunyan Foster, Gavin L Bailey, Trevor R Elliott, Tim Schmidt, Daniela N Pearson, Paul N Haley, Brian A Coath, Chris |
author_sort |
Ni, Yunyan |
title |
d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C |
title_short |
d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C |
title_full |
d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C |
title_fullStr |
d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C |
title_full_unstemmed |
d11B and metal/Ca ratios versus size fractions in the Surface and deep dwelling species, ODP Holes 130-806B and 108-664C |
title_sort |
d11b and metal/ca ratios versus size fractions in the surface and deep dwelling species, odp holes 130-806b and 108-664c |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.832875 https://doi.org/10.1594/PANGAEA.832875 |
op_coverage |
MEDIAN LATITUDE: -0.347067 * MEDIAN LONGITUDE: 75.433500 * SOUTH-BOUND LATITUDE: -1.467000 * WEST-BOUND LONGITUDE: -23.227500 * NORTH-BOUND LATITUDE: 0.318500 * EAST-BOUND LONGITUDE: 159.361000 * DATE/TIME START: 1971-03-23T00:00:00 * DATE/TIME END: 1990-02-23T01:30:00 * MINIMUM DEPTH, sediment/rock: 0.02 m * MAXIMUM DEPTH, sediment/rock: 0.02 m |
long_lat |
ENVELOPE(-23.227500,159.361000,0.318500,-1.467000) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Ni, Yunyan; Foster, Gavin L; Bailey, Trevor R; Elliott, Tim; Schmidt, Daniela N; Pearson, Paul N; Haley, Brian A; Coath, Chris (2007): A core top assessment of proxies for the ocean carbonate system in surface-dwelling foraminifers. Paleoceanography, 22(3), PA3212, https://doi.org/10.1029/2006PA001337 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.832875 https://doi.org/10.1594/PANGAEA.832875 |
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.832875 https://doi.org/10.1029/2006PA001337 |
_version_ |
1766136987066040320 |