(Table S1) Calcium isotope ratios of Pacific Ocean sediments
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| Autores principales: | , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2008
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| _version_ | 1867168101442781184 |
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| author | Griffith, Elizabeth M Paytan, Adina Caldeira, Kenneth Bullen, Thomas D Thomas, Ellen |
| author_facet | Griffith, Elizabeth M Paytan, Adina Caldeira, Kenneth Bullen, Thomas D Thomas, Ellen |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Multiple lines of evidence have shown that the isotopic composition and concentration of calcium in seawater have changed over the past 28 million years. A high-resolution, continuous seawater calcium isotope ratio curve from marine (pelagic) barite reveals distinct features in the evolution of the seawater calcium isotopic ratio suggesting changes in seawater calcium concentrations. The most pronounced increase in the d44/40Ca value of seawater (of 0.3 per mil) occurred over roughly 4 million years following a period of low values around 13 million years ago. The major change in marine calcium corresponds to a climatic transition and global change in the carbon cycle and suggests a reorganization of the global biogeochemical system. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_771861 |
| institution | PANGAEA |
| language | en |
| publishDate | 2008 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table S1) Calcium isotope ratios of Pacific Ocean sediments Griffith, Elizabeth M Paytan, Adina Caldeira, Kenneth Bullen, Thomas D Thomas, Ellen 199-1218A; 199-1219A; 85-572_Site; 85-573B; 85-574_Site; 85-575B; AGE; Calculated; Comment; COMPCORE; Composite Core; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Joides Resolution; Leg199; Leg85; North Pacific/FLANK; North Pacific/TROUGH; North Pacific Ocean; Number; Ocean Drilling Program; ODP; Sample code/label; Thermal Ionization Mass Spectrometry (TIMS); δ44/40 Ca; δ44/40 Ca, standard deviation Multiple lines of evidence have shown that the isotopic composition and concentration of calcium in seawater have changed over the past 28 million years. A high-resolution, continuous seawater calcium isotope ratio curve from marine (pelagic) barite reveals distinct features in the evolution of the seawater calcium isotopic ratio suggesting changes in seawater calcium concentrations. The most pronounced increase in the d44/40Ca value of seawater (of 0.3 per mil) occurred over roughly 4 million years following a period of low values around 13 million years ago. The major change in marine calcium corresponds to a climatic transition and global change in the carbon cycle and suggests a reorganization of the global biogeochemical system. |
| title | (Table S1) Calcium isotope ratios of Pacific Ocean sediments |
| topic | 199-1218A; 199-1219A; 85-572_Site; 85-573B; 85-574_Site; 85-575B; AGE; Calculated; Comment; COMPCORE; Composite Core; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Joides Resolution; Leg199; Leg85; North Pacific/FLANK; North Pacific/TROUGH; North Pacific Ocean; Number; Ocean Drilling Program; ODP; Sample code/label; Thermal Ionization Mass Spectrometry (TIMS); δ44/40 Ca; δ44/40 Ca, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.771861 |