| _version_ | 1867171055690317824 |
|---|---|
| author | Jacobel, Allison W Costa, Kassandra M Lynch-Stieglitz, Jean Marchitto, Thomas M |
| author_facet | Jacobel, Allison W Costa, Kassandra M Lynch-Stieglitz, Jean Marchitto, Thomas M |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Quantitative constraints on deep ocean carbonate chemistry are critical for understanding the processes responsible for glacial-interglacial changes in atmospheric pCO2 and the ocean feedbacks that amplify carbon cycle change. Here, we present a new, millennially-resolved, B/Ca-based record of carbonate ion concentration (∆[CO32-]), measured on C. wullerstorfi, from central equatorial Pacific site ML1208-16BB spanning the last 35 ka. This site, bathed by Pacific Deep Water, reveals a ~24 ± 7 µmol/kg rise in deep ocean [CO32-] between ~20 and 10 ka, a larger change than previously reconstructed from sites in the western equatorial Pacific and those in the central equatorial Pacific bathed by Lower Circumpolar Deep Water. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_986846 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Trace Elements of sediment core ML1208-16BB from central equatorial Pacific Jacobel, Allison W Costa, Kassandra M Lynch-Stieglitz, Jean Marchitto, Thomas M Age, uncertainty; Age model; B/Ca; Calculated according to Yu and Elderfield (2007); carbonate preservation; Central equatorial Pacific; Cibicidoides wuellerstorfi, Aluminium/Calcium ratio; Cibicidoides wuellerstorfi, Boron/Calcium ratio; Cibicidoides wuellerstorfi, Boron/Calcium ratio, uncertainty; Cibicidoides wuellerstorfi, carbonate saturation state; Cibicidoides wuellerstorfi, carbonate saturation state, uncertainty; Cibicidoides wuellerstorfi, Iron/Calcium ratio; Cibicidoides wuellerstorfi, Manganese/Calcium ratio; DEPTH, sediment/rock; Depth, sediment/rock, bottom/maximum; Depth, sediment/rock, top/minimum; Equatorial pacific ocean; GC; Gravity corer; Inductively coupled plasma - mass spectrometry (ICP-MS), Thermo Finnigan, Element 2 followed by Marchitto (2006); LGM; Marcus G. Langseth; MGL2408; ML1208-16BB; see comment; trace metals Quantitative constraints on deep ocean carbonate chemistry are critical for understanding the processes responsible for glacial-interglacial changes in atmospheric pCO2 and the ocean feedbacks that amplify carbon cycle change. Here, we present a new, millennially-resolved, B/Ca-based record of carbonate ion concentration (∆[CO32-]), measured on C. wullerstorfi, from central equatorial Pacific site ML1208-16BB spanning the last 35 ka. This site, bathed by Pacific Deep Water, reveals a ~24 ± 7 µmol/kg rise in deep ocean [CO32-] between ~20 and 10 ka, a larger change than previously reconstructed from sites in the western equatorial Pacific and those in the central equatorial Pacific bathed by Lower Circumpolar Deep Water. |
| title | Trace Elements of sediment core ML1208-16BB from central equatorial Pacific |
| topic | Age, uncertainty; Age model; B/Ca; Calculated according to Yu and Elderfield (2007); carbonate preservation; Central equatorial Pacific; Cibicidoides wuellerstorfi, Aluminium/Calcium ratio; Cibicidoides wuellerstorfi, Boron/Calcium ratio; Cibicidoides wuellerstorfi, Boron/Calcium ratio, uncertainty; Cibicidoides wuellerstorfi, carbonate saturation state; Cibicidoides wuellerstorfi, carbonate saturation state, uncertainty; Cibicidoides wuellerstorfi, Iron/Calcium ratio; Cibicidoides wuellerstorfi, Manganese/Calcium ratio; DEPTH, sediment/rock; Depth, sediment/rock, bottom/maximum; Depth, sediment/rock, top/minimum; Equatorial pacific ocean; GC; Gravity corer; Inductively coupled plasma - mass spectrometry (ICP-MS), Thermo Finnigan, Element 2 followed by Marchitto (2006); LGM; Marcus G. Langseth; MGL2408; ML1208-16BB; see comment; trace metals |
| url | https://doi.org/10.1594/PANGAEA.986846 |