Stable carbon isotope in bottom water and Cibicidoides wuellerstorfi on the Ontong Java Plateau and Emperor Seamount
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
1994
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| _version_ | 1867171358617632768 |
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| author | McCorkle, Daniel C Keigwin, Lloyd D |
| author_facet | McCorkle, Daniel C Keigwin, Lloyd D |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We have measured the carbon isotopic composition of dissolved inorganic carbon in bottom waters of the Ontong Java Plateau (western equatorial Pacific) and on the northern Emperor Seamounts (northwest Pacific). Each of these locations is several hundred miles from the nearest Geochemical Ocean Sections Study (GEOSECS) stations, and the observed delta13C values at each site differ substantially from regionally averaged GEOSECS delta13C profiles. We discuss the possible causes of these differences, including horizontal variability, near-bottom effects, and problems with the Pacific GEOSECS delta13C data. We also measured the isotopic composition (C and O) of core top C. wuellerstorfi from a depth transect of cores at each location. The delta18O data are used to verify that our samples are Holocene. Comparison of foraminiferal and bottom water delta13C values shows that this species faithfully records bottom water delta13C at both sites and demonstrates that there is no depth-related artifact in the dissolved inorganic carbon-C. wuellerstorfi delta13C relationship at these sites. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_729848 |
| institution | PANGAEA |
| language | en |
| publishDate | 1994 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Stable carbon isotope in bottom water and Cibicidoides wuellerstorfi on the Ontong Java Plateau and Emperor Seamount McCorkle, Daniel C Keigwin, Lloyd D 6-TOW; 6-TOW-001GGC; 6-TOW-002GGC; 6-TOW-003GGC; 6-TOW-005GGC; 6-TOW-006GGC; 6-TOW-007GGC; 6-TOW-008GGC; 6-TOW-011GGC; 6-TOW-011PC; 6-TOW-012GGC; 6-TOW-013GGC; 6-TOW-014GGC; 6-TOW-015GGC; 6-TOW-016GGC; Akademik A. Vinogradov; AVI19-4; BC; Box corer; GGC; Giant gravity corer; Moana Wave; MW9109; MW9109-13BC; MW9109-16BC; MW9109-22BC; MW9109-33BC; MW9109-37BC; MW9109-3BC; MW9109-47BC; MW9109-53BC; MW9109-54BC; MW9109-58BC; MW9109-59BC; MW9109-63BC; MW9109-66BC; MW9109-70BC; MW9109-74BC; MW9109-7BC; Pacific; PC; Piston corer; RAMA; RAMA03WT; RAMA-44P; RNDB-11GGC; RNDB-11PC; RNDB-12GGC; RNDB-13GGC; RNDB-14GGC; RNDB-15GGC; RNDB-16GGC; RNDB-1GGC; RNDB-2GGC; RNDB-3GGC; RNDB-5GGC; RNDB-6GGC; RNDB-7GGC; RNDB-8GGC; Thomas Washington; Vi-26BC; Vi-35GC; Vi-37GC; VINO-26BC; VINO-35GGC; VINO-37GGC We have measured the carbon isotopic composition of dissolved inorganic carbon in bottom waters of the Ontong Java Plateau (western equatorial Pacific) and on the northern Emperor Seamounts (northwest Pacific). Each of these locations is several hundred miles from the nearest Geochemical Ocean Sections Study (GEOSECS) stations, and the observed delta13C values at each site differ substantially from regionally averaged GEOSECS delta13C profiles. We discuss the possible causes of these differences, including horizontal variability, near-bottom effects, and problems with the Pacific GEOSECS delta13C data. We also measured the isotopic composition (C and O) of core top C. wuellerstorfi from a depth transect of cores at each location. The delta18O data are used to verify that our samples are Holocene. Comparison of foraminiferal and bottom water delta13C values shows that this species faithfully records bottom water delta13C at both sites and demonstrates that there is no depth-related artifact in the dissolved inorganic carbon-C. wuellerstorfi delta13C relationship at these sites. |
| title | Stable carbon isotope in bottom water and Cibicidoides wuellerstorfi on the Ontong Java Plateau and Emperor Seamount |
| topic | 6-TOW; 6-TOW-001GGC; 6-TOW-002GGC; 6-TOW-003GGC; 6-TOW-005GGC; 6-TOW-006GGC; 6-TOW-007GGC; 6-TOW-008GGC; 6-TOW-011GGC; 6-TOW-011PC; 6-TOW-012GGC; 6-TOW-013GGC; 6-TOW-014GGC; 6-TOW-015GGC; 6-TOW-016GGC; Akademik A. Vinogradov; AVI19-4; BC; Box corer; GGC; Giant gravity corer; Moana Wave; MW9109; MW9109-13BC; MW9109-16BC; MW9109-22BC; MW9109-33BC; MW9109-37BC; MW9109-3BC; MW9109-47BC; MW9109-53BC; MW9109-54BC; MW9109-58BC; MW9109-59BC; MW9109-63BC; MW9109-66BC; MW9109-70BC; MW9109-74BC; MW9109-7BC; Pacific; PC; Piston corer; RAMA; RAMA03WT; RAMA-44P; RNDB-11GGC; RNDB-11PC; RNDB-12GGC; RNDB-13GGC; RNDB-14GGC; RNDB-15GGC; RNDB-16GGC; RNDB-1GGC; RNDB-2GGC; RNDB-3GGC; RNDB-5GGC; RNDB-6GGC; RNDB-7GGC; RNDB-8GGC; Thomas Washington; Vi-26BC; Vi-35GC; Vi-37GC; VINO-26BC; VINO-35GGC; VINO-37GGC |
| url | https://doi.org/10.1594/PANGAEA.729848 |