Matches in SemOpenAlex for { <https://semopenalex.org/work/W2897936891> ?p ?o ?g. }
- W2897936891 endingPage "190" @default.
- W2897936891 startingPage "178" @default.
- W2897936891 abstract "Eastern Mediterranean sapropels S1 (∼10.5–6.1 kyr BP) and S3 (∼85.8–80.8 kyr BP) formed respectively under full interglacial and glacial inception conditions. Consequently, the environmental factors preconditioning and leading to sapropel formation (e.g., global sea level and monsoonal forcing) were different. These factors must have differently influenced processes such as marine productivity, water column processes, and related seafloor anoxia. Here we investigate these differences through an interdisciplinary approach using dinoflagellate cyst and pollen/spore assemblages and sedimentary (redox-sensitive) trace-metal concentrations from a core in the central Nile delta area. Comparing S1 to S3, we demonstrate that (1) Nile discharge appears to be stronger during S3 than S1, as shown by δ18Oresiduals, higher ratio of pollen and spores, and the higher abundance of coastal dinocysts and freshwater palynomorphs, (2) Ba/Al, Corg, and dinocyst accumulation rates indicate that marine productivity was similar at least during the first phase of their deposition and started prior to the onset of both sapropels, (3) bottom water conditions were more reducing during S3, resulting in higher Mo/Al, S, and Corg/Ptot values, but preservation was high and similar for both sapropels, and (4) Sedimentary Mo-U covariation indicates that the depth of water-column ventilation during deposition of S3 was shallower than during S1 (∼1000 m versus ∼1800m, respectively). We attribute the observed differences to slightly enhanced precessional-forced monsoon intensity and potentially lower global sea level, resulting not only in increased North-African run-off, but also in reduced ventilation during S3 compared to S1." @default.
- W2897936891 created "2018-10-26" @default.
- W2897936891 creator A5002313176 @default.
- W2897936891 creator A5004212104 @default.
- W2897936891 creator A5011912344 @default.
- W2897936891 creator A5015450343 @default.
- W2897936891 creator A5019704197 @default.
- W2897936891 creator A5068323421 @default.
- W2897936891 date "2018-11-01" @default.
- W2897936891 modified "2023-10-12" @default.
- W2897936891 title "Marine productivity, water column processes and seafloor anoxia in relation to Nile discharge during sapropels S1 and S3" @default.
- W2897936891 cites W1544626820 @default.
- W2897936891 cites W1640027433 @default.
- W2897936891 cites W169865620 @default.
- W2897936891 cites W1965156009 @default.
- W2897936891 cites W1968451726 @default.
- W2897936891 cites W1968988439 @default.
- W2897936891 cites W1971369540 @default.
- W2897936891 cites W1971660197 @default.
- W2897936891 cites W1975073263 @default.
- W2897936891 cites W1982322240 @default.
- W2897936891 cites W1984682253 @default.
- W2897936891 cites W1987668602 @default.
- W2897936891 cites W1987748614 @default.
- W2897936891 cites W1988227476 @default.
- W2897936891 cites W1990408694 @default.
- W2897936891 cites W1994948548 @default.
- W2897936891 cites W1997409459 @default.
- W2897936891 cites W1997860557 @default.
- W2897936891 cites W2001175847 @default.
- W2897936891 cites W2003885809 @default.
- W2897936891 cites W2005066336 @default.
- W2897936891 cites W2005604628 @default.
- W2897936891 cites W2009814424 @default.
- W2897936891 cites W2013541745 @default.
- W2897936891 cites W2017114107 @default.
- W2897936891 cites W2021101742 @default.
- W2897936891 cites W2028054379 @default.
- W2897936891 cites W2031346298 @default.
- W2897936891 cites W2031442191 @default.
- W2897936891 cites W2033846141 @default.
- W2897936891 cites W2039696253 @default.
- W2897936891 cites W2042505381 @default.
- W2897936891 cites W2044411427 @default.
- W2897936891 cites W2048317147 @default.
- W2897936891 cites W2050225805 @default.
- W2897936891 cites W2056749490 @default.
- W2897936891 cites W2057391595 @default.
- W2897936891 cites W2061460900 @default.
- W2897936891 cites W2061705362 @default.
- W2897936891 cites W2068263661 @default.
- W2897936891 cites W2072032745 @default.
- W2897936891 cites W2073823102 @default.
- W2897936891 cites W2080753820 @default.
- W2897936891 cites W2081760587 @default.
- W2897936891 cites W2083645617 @default.
- W2897936891 cites W2086278640 @default.
- W2897936891 cites W2086386094 @default.
- W2897936891 cites W2086916601 @default.
- W2897936891 cites W2087354441 @default.
- W2897936891 cites W2091469891 @default.
- W2897936891 cites W2097302660 @default.
- W2897936891 cites W2099203375 @default.
- W2897936891 cites W2099826005 @default.
- W2897936891 cites W2101307921 @default.
- W2897936891 cites W2104849651 @default.
- W2897936891 cites W2106375528 @default.
- W2897936891 cites W2110496509 @default.
- W2897936891 cites W2117837504 @default.
- W2897936891 cites W2124914892 @default.
- W2897936891 cites W2128717820 @default.
- W2897936891 cites W2131038832 @default.
- W2897936891 cites W2133520730 @default.
- W2897936891 cites W2133749899 @default.
- W2897936891 cites W2140477756 @default.
- W2897936891 cites W2141643578 @default.
- W2897936891 cites W2141749493 @default.
- W2897936891 cites W2143980626 @default.
- W2897936891 cites W2144860488 @default.
- W2897936891 cites W2145147988 @default.
- W2897936891 cites W2147227567 @default.
- W2897936891 cites W2149211823 @default.
- W2897936891 cites W2152650706 @default.
- W2897936891 cites W2154251676 @default.
- W2897936891 cites W2155234362 @default.
- W2897936891 cites W2156433034 @default.
- W2897936891 cites W2157103051 @default.
- W2897936891 cites W2158972376 @default.
- W2897936891 cites W2163699673 @default.
- W2897936891 cites W2169797344 @default.
- W2897936891 cites W2186918917 @default.
- W2897936891 cites W2329276532 @default.
- W2897936891 cites W2757684713 @default.
- W2897936891 cites W2761128817 @default.
- W2897936891 cites W2766562846 @default.
- W2897936891 cites W2769825095 @default.
- W2897936891 cites W4246027503 @default.
- W2897936891 cites W4306293736 @default.