Age models and stable isotope analysis on sediment core Site 199-1218 from the equatorial Pacific
Cobertura |
LATITUDE: 8.889630 * LONGITUDE: -135.366660 * DATE/TIME START: 2001-11-14T00:00:00 * DATE/TIME END: 2001-11-14T00:00:00 |
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Data(s) |
03/11/2006
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Resumo |
A 13-million-year continuous record of Oligocene climate from the equatorial Pacific reveals a pronounced "heartbeat" in the global carbon cycle and periodicity of glaciations. This heartbeat consists of 405,000-, 127,000-, and 96,000-year eccentricity cycles and 1.2-million-year obliquity cycles in periodically recurring glacial and carbon cycle events. That climate system response to intricate orbital variations suggests a fundamental interaction of the carbon cycle, solar forcing, and glacial events. Box modeling shows that the interaction of the carbon cycle and solar forcing modulates deep ocean acidity as well as the production and burial of global biomass. The pronounced 405,000-year eccentricity cycle is amplified by the long residence time of carbon in the oceans. |
Formato |
application/zip, 3 datasets |
Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.547942 doi:10.1594/PANGAEA.547942 |
Idioma(s) |
en |
Publicador |
PANGAEA |
Relação |
Coxall, Helen; Wilson, Paul A; Pälike, Heiko; Lear, Caroline H; Backman, Jan (2005): Rapid stepwise onset of Antarctic glaciation and deeper calcite compensation in the Pacific Ocean. Nature, 433, 53-57, doi:10.1038/nature03135 Lear, Caroline H; Rosenthal, Yair; Coxall, Helen; Wilson, Paul A (2004): Late Eocene to early Miocene ice sheet dynamics and the global carbon cycle. Paleoceanography, 19, PA4015, doi:10.1029/2004PA001039 Tripati, Aradhna K; Elderfield, Henry; Booth, Linda; Zachos, James C; Ferretti, Patrizia (2006): Data report: High-resolution benthic foraminiferal stable isotope stratigraphy across the Oligocene/Miocene boundary at Site 1218. In: Wilson, PA; Lyle, M; Firth, JV (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 199, 1-13, doi:10.2973/odp.proc.sr.199.221.2006 Wade, Bridget S; Pälike, Heiko (2004): Oligocene climate dynamics. Paleoceanography, 19, PA4019, doi:10.1029/2004PA001042 |
Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
Fonte |
Supplement to: Pälike, Heiko; Norris, Richard D; Herrle, Jens O; Wilson, Paul A; Coxall, Helen; Lear, Caroline H; Shackleton, Nicholas J; Tripati, Aradhna K; Wade, Bridget S (2006): The Heartbeat of the Oligocene Climate System. Science, 314(5807), 1894-1898, doi:10.1126/science.1133822 |
Palavras-Chave | #199-1218; Age model; Age model, ATNTS2004, Lourens et al., 2004; Age model, GPTS (geomagnetic polarity timescale), Cande and Kent (1995); Age model, optional; Age model in radiocarbon 14C ages; Age model opt; auto; B = bottom, T = top; C. grimsdalei d13C; C. grimsdalei d18O; C. havanensis d13C; C. havanensis d18O; CaCO3; Calcium carbonate; calibrated automatically to astronomical template, used for figures; calibrated manually to astronomical template; Chronozone; Cibicidoides grimsdalei, d13C; Cibicidoides grimsdalei, d18O; Cibicidoides havanensis, d13C; Cibicidoides havanensis, d18O; Cibicidoides spp., d13C; Cibicidoides spp., d18O; Cibicidoides spp. d13C; Cibicidoides spp. d18O; Comment; COMPCORE; Composite Core; consistent with Cande and Kent, 1995; d13C carb; d18O carb; delta 13C, carbonate; delta 18O, carbonate; Depth; Depth, composite; Depth, composite revised; DEPTH, sediment/rock; Depth comp; Depth cr; Intercore correlation; Isotope ratio mass spectrometry; Joides Resolution; Label; Lab no; Leg199; manual; Neogene age; North Pacific Ocean; Ocean Drilling Program; ODP; ODP sample designation; Reference; Reference/source; Sample, optional label/labor no; Sample code/label; see Paelike et al., 2005 |
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Dataset |