FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3114485016> ?p ?o ?g. }

• W3114485016 endingPage "106752" @default.
• W3114485016 startingPage "106752" @default.
• W3114485016 abstract "The Mid-Pleistocene transition (MPT; 1200 to 800 thousand years, kyr) is marked by the shift from 41-kyr to 100-kyr interglacial-glacial cyclicity without substantial change in the astronomical forcing. This change in climate response relied on internal feedback processes including interaction between ice sheet/sea ice, ocean circulation and the carbon cycle. It was suggested that a major perturbation of global oceanic carbon chemistry occurred at around 900 ka (Marine Isotope Stage, MIS, 24–22) although the mechanism responsible for the change is still to be elucidated. To investigate the link between the Atlantic Meridional Overturning Circulation (AMOC) and oceanic carbon storage for the past 1100 kyr, we combined neodymium isotopic composition (143Nd/144Nd or εNd) recorded in foraminiferal authigenic fractions with epibenthic foraminiferal δ13C and δ18O from two cores in the North- and South-east Atlantic Ocean. Glacial/interglacial εNd amplitude is smaller before the 900-ka event than after the event. The 900-ka event is marked by increase in seawater εNd at both sites. These observations are consistent with previous studies, suggesting basin-wide εNd changes. Combined with existing data, these new results reveal a persistent meridional gradient of seawater εNd in the Atlantic Ocean over the past 1100 kyr. By comparing the reconstructions with numerical modelling results, we propose that weaker AMOC and changes in Nd sources to the North Atlantic were the main reasons for the observed εNd shift at the 900-ka event in relation to the evolution of the Northern hemisphere cryosphere. The influence of enhanced Southern Ocean overturning circulation on εNd values was estimated to be minor. Seawater εNd and benthic δ13C relationship for the whole study period indicates the presence of carbon-rich glacial deep water (>3000 m) in the North and the South Atlantic, in particular at MIS 22 and 24. This suggests that, in addition to weaker AMOC, reduction of deep-water ventilation and/or air-sea exchange in the Southern Ocean could have been responsible for the observed low benthic δ13C values. Together with increased biological productivity due to iron fertilization in the Southern Ocean, the physical process significantly contributed to the deep Atlantic carbon storage during the 900-ka event and the subsequent glacial periods." @default.
• W3114485016 created "2021-01-05" @default.
• W3114485016 creator A5003912477 @default.
• W3114485016 creator A5012108622 @default.
• W3114485016 creator A5019964072 @default.
• W3114485016 creator A5020337856 @default.
• W3114485016 creator A5023019780 @default.
• W3114485016 creator A5035200956 @default.
• W3114485016 creator A5050344970 @default.
• W3114485016 creator A5052775828 @default.
• W3114485016 creator A5054403635 @default.
• W3114485016 creator A5083287025 @default.
• W3114485016 date "2021-01-01" @default.
• W3114485016 modified "2023-10-12" @default.
• W3114485016 title "Eastern Atlantic deep-water circulation and carbon storage inferred from neodymium and carbon isotopic compositions over the past 1.1 million years" @default.
• W3114485016 cites W1609491364 @default.
• W3114485016 cites W1963050134 @default.
• W3114485016 cites W1965983577 @default.
• W3114485016 cites W1976174351 @default.
• W3114485016 cites W1978250019 @default.
• W3114485016 cites W1982897268 @default.
• W3114485016 cites W1983307350 @default.
• W3114485016 cites W1983430738 @default.
• W3114485016 cites W1984192025 @default.
• W3114485016 cites W1985922166 @default.
• W3114485016 cites W1987936728 @default.
• W3114485016 cites W1991374242 @default.
• W3114485016 cites W1995957452 @default.
• W3114485016 cites W2000174130 @default.
• W3114485016 cites W2000955511 @default.
• W3114485016 cites W2007732216 @default.
• W3114485016 cites W2007868049 @default.
• W3114485016 cites W2013218624 @default.
• W3114485016 cites W2019333772 @default.
• W3114485016 cites W2019684806 @default.
• W3114485016 cites W2023118744 @default.
• W3114485016 cites W2031171042 @default.
• W3114485016 cites W2035262701 @default.
• W3114485016 cites W2035919032 @default.
• W3114485016 cites W2035980065 @default.
• W3114485016 cites W2036094407 @default.
• W3114485016 cites W2038653503 @default.
• W3114485016 cites W2042699471 @default.
• W3114485016 cites W2052714907 @default.
• W3114485016 cites W2052727776 @default.
• W3114485016 cites W2073451667 @default.
• W3114485016 cites W2079671847 @default.
• W3114485016 cites W2084587636 @default.
• W3114485016 cites W2088223235 @default.
• W3114485016 cites W2093106702 @default.
• W3114485016 cites W2094066183 @default.
• W3114485016 cites W2103838658 @default.
• W3114485016 cites W2107084004 @default.
• W3114485016 cites W2115013822 @default.
• W3114485016 cites W2122295209 @default.
• W3114485016 cites W2127269899 @default.
• W3114485016 cites W2129542530 @default.
• W3114485016 cites W2130261412 @default.
• W3114485016 cites W2132119029 @default.
• W3114485016 cites W2156865657 @default.
• W3114485016 cites W2161365912 @default.
• W3114485016 cites W2162683126 @default.
• W3114485016 cites W2163051248 @default.
• W3114485016 cites W2164143844 @default.
• W3114485016 cites W2164545286 @default.
• W3114485016 cites W2171153098 @default.
• W3114485016 cites W2190707171 @default.
• W3114485016 cites W2310243949 @default.
• W3114485016 cites W2332223564 @default.
• W3114485016 cites W2397540863 @default.
• W3114485016 cites W2412605135 @default.
• W3114485016 cites W2484900617 @default.
• W3114485016 cites W2523158102 @default.
• W3114485016 cites W2534710553 @default.
• W3114485016 cites W2550198869 @default.
• W3114485016 cites W2592590281 @default.
• W3114485016 cites W2598965167 @default.
• W3114485016 cites W2770541382 @default.
• W3114485016 cites W2790984864 @default.
• W3114485016 cites W2791444737 @default.
• W3114485016 cites W2795923046 @default.
• W3114485016 cites W2806500130 @default.
• W3114485016 cites W2899619418 @default.
• W3114485016 cites W2902948559 @default.
• W3114485016 cites W2906729293 @default.
• W3114485016 cites W2921387980 @default.
• W3114485016 cites W2927611752 @default.
• W3114485016 cites W2933346750 @default.
• W3114485016 cites W2951372365 @default.
• W3114485016 cites W2982457389 @default.
• W3114485016 cites W2985341184 @default.
• W3114485016 cites W2995661000 @default.
• W3114485016 cites W3005250239 @default.
• W3114485016 cites W3013655453 @default.
• W3114485016 cites W3026630785 @default.
• W3114485016 cites W3037190290 @default.
• W3114485016 cites W3040021359 @default.
• W3114485016 doi "https://doi.org/10.1016/j.quascirev.2020.106752" @default.

• next